120 jobs found

Job Title: Principal HVAC Design Engineer Location: Barrow-in-Furness. We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this role Salary: Circa £55,000 What you'll be doing: Lead the end-to-end development of cutting-edge HVAC systems, ensuring they meet demanding performance, safety, and environmental standards Create and review high-impact engineering artefacts - from specifications and P&IDs to calculations and 3D models Drive advanced thermal, airflow, and pressure analyses toto validate system performance in challenging conditions Transform complex requirements into robust, innovative, and verifiable design solutions that set the benchmark for excellence Guide and influence engineers, suppliers, and design partners, shaping best-in-class HVAC integration across the platform Enhance design standards and evaluate specialist equipment, contributing to reviews, hazard assessments, and lifecycle verification Your skills and experiences: Essential Strong technical expertise in HVAC and mechanical system design, including psychometrics, thermal analysis, equipment specification, schematics and system balancing Awareness of multi-disciplinary system integration challenges across structures, electrical, controls, safety, and installation Excellent technical communication and reporting abilities, engaging both internal and external stakeholders STEM degree (or equivalent experience), ideally working toward or holding professional registration (CEng preferred) Desirable Proven experience working in complex or regulated industries, with knowledge of standards such as ISO 15138, BS EN 378, ASHRAE, or CIBSE Skilled in system performance assessment, design validation, modelling, and failure analysis Benefits: As well as a competitive pension scheme, BAE Systems also offers employee share plans, an extensive range of flexible discounted health, wellbeing and lifestyle benefits, including a green car scheme, private health plans and shopping discounts - you may also be eligible for an annual incentive. The Platform Mechanical Integrated Delivery Team: As a Principal HVAC Design Engineer, you'll be at the forefront of one of the UK's most advanced engineering programmes - leading the delivery of complex HVAC systems that shape the future of submarine platforms. You'll take ownership of high-impact systems, provide trusted technical authority, and work across multiple disciplines to drive innovative solutions into reality. You'll be part of the Platform Mechanical Integrated Delivery Team - a fast-moving, highly collaborative group of specialists pushing the boundaries of submarine engineering. This is a unique opportunity to work alongside experts from diverse backgrounds and partner organisations, contributing to mechanical capabilities that are critical to the success of the entire platform We offer relocation support across all Submarine roles, subject to meeting eligibility criteria Why BAE Systems? This is a place where you'll be able to make a real difference. You'll be part of an inclusive culture that values diversity of thought, rewards integrity, and merit, and where you'll be empowered to fulfil your potential. We welcome people from all backgrounds and want to make sure that our recruitment processes are as inclusive as possible. If you have a disability or health condition (for example dyslexia, autism, an anxiety disorder etc .) that may affect your performance in certain assessment types, please speak to your recruiter about potential reasonable adjustments. Please be aware that many roles at BAE Systems are subject to both security and export control restrictions. These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation. All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role , to allow for meaningful security vetting checks. Closing Date: 12th February 2026 We reserve the right to close this vacancy early if we receive sufficient applications for the role . Therefore, if you are interested, please submit your application as early as possible.

Job Title: Principal HVAC Design Engineer Location: Barrow-in-Furness. We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this role Salary: Circa £55,000 What you'll be doing: Lead the end-to-end development of cutting-edge HVAC systems, ensuring they meet demanding performance, safety, and environmental standards Create and review high-impact engineering artefacts - from specifications and P&IDs to calculations and 3D models Drive advanced thermal, airflow, and pressure analyses toto validate system performance in challenging conditions Transform complex requirements into robust, innovative, and verifiable design solutions that set the benchmark for excellence Guide and influence engineers, suppliers, and design partners, shaping best-in-class HVAC integration across the platform Enhance design standards and evaluate specialist equipment, contributing to reviews, hazard assessments, and lifecycle verification Your skills and experiences: Essential Strong technical expertise in HVAC and mechanical system design, including psychometrics, thermal analysis, equipment specification, schematics and system balancing Awareness of multi-disciplinary system integration challenges across structures, electrical, controls, safety, and installation Excellent technical communication and reporting abilities, engaging both internal and external stakeholders STEM degree (or equivalent experience), ideally working toward or holding professional registration (CEng preferred) Desirable Proven experience working in complex or regulated industries, with knowledge of standards such as ISO 15138, BS EN 378, ASHRAE, or CIBSE Skilled in system performance assessment, design validation, modelling, and failure analysis Benefits: As well as a competitive pension scheme, BAE Systems also offers employee share plans, an extensive range of flexible discounted health, wellbeing and lifestyle benefits, including a green car scheme, private health plans and shopping discounts - you may also be eligible for an annual incentive. The Platform Mechanical Integrated Delivery Team: As a Principal HVAC Design Engineer, you'll be at the forefront of one of the UK's most advanced engineering programmes - leading the delivery of complex HVAC systems that shape the future of submarine platforms. You'll take ownership of high-impact systems, provide trusted technical authority, and work across multiple disciplines to drive innovative solutions into reality. You'll be part of the Platform Mechanical Integrated Delivery Team - a fast-moving, highly collaborative group of specialists pushing the boundaries of submarine engineering. This is a unique opportunity to work alongside experts from diverse backgrounds and partner organisations, contributing to mechanical capabilities that are critical to the success of the entire platform We offer relocation support across all Submarine roles, subject to meeting eligibility criteria Why BAE Systems? This is a place where you'll be able to make a real difference. You'll be part of an inclusive culture that values diversity of thought, rewards integrity, and merit, and where you'll be empowered to fulfil your potential. We welcome people from all backgrounds and want to make sure that our recruitment processes are as inclusive as possible. If you have a disability or health condition (for example dyslexia, autism, an anxiety disorder etc .) that may affect your performance in certain assessment types, please speak to your recruiter about potential reasonable adjustments. Please be aware that many roles at BAE Systems are subject to both security and export control restrictions. These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation. All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role , to allow for meaningful security vetting checks. Closing Date: 12th February 2026 We reserve the right to close this vacancy early if we receive sufficient applications for the role . Therefore, if you are interested, please submit your application as early as possible.

Job Title: Principal Engineer Electrical Engineering (Power) Location: Barrow-In-Furness (Hybrid). (Barrow 2 days a fortnight onsite; 1 day a week onsite at Filton) depending on business needs Salary: Up to £57,500 (Commensurate with skills and experience) What youll be doing: Develop design solutions to agreed time, cost and quality in accordance with project or business milestones Develop an

Principal Electrical Design Engineer - Protection & Control Scotland Region Permanent - Full Time, hybrid Salary Competitive + Car Allowance + Flexible Benefits Summary: This role involves designing and overseeing the implementation of protection schemes, control systems, and related equipment to ensure the safe and reliable operation of power networks, substations, and Transmissions and Distribution electrical infrastructure. Position requires technical expertise and vast experience working in Transmission and Distribution sector for protection & control and Substation Automation system/SCADA design (from 11kV up to 400kV). Candidate should lead the design and specification of protection and control systems for electrical substations, powerplants, and transmission/distribution networks. Roles & Responsibilities: Candidate is responsible to develop protection settings, relay PSL files, coordination studies, including fault detection and isolation strategies. Candidates should have complete knowledge of all TSO/DNO standards & specifications with respect to P&C Design & Calculations, as well as overall Substation Design Works. He/She should ensure compliance with relevant national and international standards (e.g., IEC, BS, IEEE) in protection system design. Candidate should have good knowledge of substation primary design and substation equipment/switchgear specifications. He/She should ensure that the design meets safety standards and regulatory requirements, incorporating protection against electrical hazards, arc flash, and other safety concerns. Design, implement and maintain SCADA/communication systems for a variety of clients in sectors including utilities, oil and gas, manufacturing, industrial automation and various other communication networks. Configure and optimize network infrastructure & communication protocols such as IEC 61850; Distributed Network Protocol (DNP 3); Parallel Redundancy Protocol (PRP); Precision Time Protocol (PTP); Network Time Protocol (NTP); Simplified Network Time Protocol (NTP), Modbus, OPC, Profibus, etc for seamless integration with field devices, including RTUs, PLCs, IEDs, etc, also ensure stable connectivity between SCADA centres & remote sites, and configure secure VPNs & remote access protocols to allow for safe, off-site monitoring and control. Understand client requirements & produce network architecture philosophy diagram, IED telecommunication diagram, SCADA & Telecommunications Panel design, Network IP allocation, I/O Schedules, Cable & Core schedules, etc. Assist with the setup and commissioning of SCADA systems at client sites, troubleshoot field devices and network communication issues, perform preventive and corrective maintenance on SCADA infrastructure and associated hardware. Efficiently design/develop the SCADA/communication systems (e.g., Ignition, Siemens WinCC, GE iFIX, etc) to ensure real-time data acquisition and control for critical infrastructure. Provide remote support for troubleshooting SCADA system and network issues, ensuring minimal downtime and swift resolution of critical incidents. Conduct system upgrades, testing, and validation for new features, components, and patches. Implement cybersecurity measures to safeguard SCADA systems against emerging threats. Collaborate with cross-functional teams to ensure smooth integration and deployment of SCADA systems. Candidate should have experience in tendering, pricing jobs, proposal creation. Candidate should be actively participating in work winning process. Candidate should be capable of technically assessing engineering problems and critically evaluating a range of technical solutions. Unwavering confidence in technically assessing engineering problems and critically evaluating a range of technical solutions will be instrumental in pursuit of engineering excellence. Exemplary communication skills to demonstrate diligence, prioritize tasks effectively, and ensure a thorough understanding of relevant legislation, including CDM and ESQCR. This knowledge will be pivotal in managing Transmission and Distribution network. Collaborate closely with other designers, construction professionals, and engineering teams. Liaise effectively with the Power Systems, Primary and Civil design departments to ensure that all objectives are met and that the best possible design is submitted. Review and provide constructive feedback on the reports and drawings done by Junior & Senior Engineers. Provide technical leadership and mentoring to junior engineers in the design, analysis, and commissioning of protection systems. What we're looking for : Experience: Extensive experience in electrical protection and control system design, Substation Automation and SCADA system typically 12-15 years, with a proven track record of delivering complex projects within the power sector. Technical and Professional knowledge and experience associated with the role. Candidate should have vast experience in crafting Single Line Diagrams, AC & DC Schematic Drawings, Panel General Arrangements, Panel Wiring Diagrams, Switchgear Termination/interconnection drawings, Block Cable Diagrams/Schedules, and performing cable specification/sizing calculations, battery sizing calculations, CT/VT sizing, multicore sizing, Relays CORTEC/specifications. Candidate should have experience in testing & commissioning of P&C, SCADA/Communication/SAS panels. Should be able to Identify potential risks and failures within protection and SCADA systems and propose mitigation strategies. Candidate should have good knowledge & experience working with AutoCAD. Qualifications: Education: Bachelor's degree in electrical engineering (typically 2:1 or above) in Electrical Engineering, Power Systems, or a related field. A master's degree may be preferred for senior roles.Chartered Status (Preferred): Chartered Engineer (CEng) status with a professional body such as the Institution of Engineering and Technology (IET) or the Institution of Electrical Engineers (IEE) is highly desirable.Certifications (Optional): Professional certifications such as NEBOSH for health and safety, or specific training in protection and control system design, may be beneficial.Candidate should have experience working in Substation Automation Syste

Job Title: Principal HVAC Design Engineer Location: Barrow-in-Furness. We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this role Salary: Circa £55,000 What you'll be doing: Lead the end-to-end development of cutting-edge HVAC systems, ensuring they meet demanding performance, safety, and environmental standards Create and review high-impact engineering artefacts - from specifications and P&IDs to calculations and 3D models Drive advanced thermal, airflow, and pressure analyses toto validate system performance in challenging conditions Transform complex requirements into robust, innovative, and verifiable design solutions that set the benchmark for excellence Guide and influence engineers, suppliers, and design partners, shaping best-in-class HVAC integration across the platform Enhance design standards and evaluate specialist equipment, contributing to reviews, hazard assessments, and lifecycle verification Your skills and experiences: Essential Strong technical expertise in HVAC and mechanical system design, including psychometrics, thermal analysis, equipment specification, schematics and system balancing Awareness of multi-disciplinary system integration challenges across structures, electrical, controls, safety, and installation Excellent technical communication and reporting abilities, engaging both internal and external stakeholders STEM degree (or equivalent experience), ideally working toward or holding professional registration (CEng preferred) Desirable Proven experience working in complex or regulated industries, with knowledge of standards such as ISO 15138, BS EN 378, ASHRAE, or CIBSE Skilled in system performance assessment, design validation, modelling, and failure analysis Benefits: As well as a competitive pension scheme, BAE Systems also offers employee share plans, an extensive range of flexible discounted health, wellbeing and lifestyle benefits, including a green car scheme, private health plans and shopping discounts - you may also be eligible for an annual incentive. The Platform Mechanical Integrated Delivery Team: As a Principal HVAC Design Engineer, you'll be at the forefront of one of the UK's most advanced engineering programmes - leading the delivery of complex HVAC systems that shape the future of submarine platforms. You'll take ownership of high-impact systems, provide trusted technical authority, and work across multiple disciplines to drive innovative solutions into reality. You'll be part of the Platform Mechanical Integrated Delivery Team - a fast-moving, highly collaborative group of specialists pushing the boundaries of submarine engineering. This is a unique opportunity to work alongside experts from diverse backgrounds and partner organisations, contributing to mechanical capabilities that are critical to the success of the entire platform We offer relocation support across all Submarine roles, subject to meeting eligibility criteria Why BAE Systems? This is a place where you'll be able to make a real difference. You'll be part of an inclusive culture that values diversity of thought, rewards integrity, and merit, and where you'll be empowered to fulfil your potential. We welcome people from all backgrounds and want to make sure that our recruitment processes are as inclusive as possible. If you have a disability or health condition (for example dyslexia, autism, an anxiety disorder etc .) that may affect your performance in certain assessment types, please speak to your recruiter about potential reasonable adjustments. Please be aware that many roles at BAE Systems are subject to both security and export control restrictions. These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation. All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role , to allow for meaningful security vetting checks. Closing Date: 12th February 2026 We reserve the right to close this vacancy early if we receive sufficient applications for the role . Therefore, if you are interested, please submit your application as early as possible.

Job Title: Principal Engineer - Nuclear Substantiation (Site) Location: Barrow-in-Furness. We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role. Salary: £60,000 + depending on experience What you'll be doing: Authoring and managing nuclear site assets' design substantiation documentation supporting the site nuclear safety case Reviewing analyses , assessments, and calculations supporting nuclear design substantiation Supporting periodic review of safety Taking ownership of deliverables, and demonstrating high levels of autonomy and leadership Supporting the implementation of design substantiation requirements Working closely with a broad range of stakeholders including Site Safety Case, Human Factors, and Engineering Authority Teams Support in the development of other Nuclear Substantiation team members Collaborating with the wider business on site assets nuclear design substantiation related activities Your skills and experiences: Essential: Experience of the nuclear industry and nuclear safety regulations Degree qualified in a STEM subject or equivalent working experience. Ability to produce high quality technical reports Determined in driving all deliverable and associated activities through due process to completion Excellent stakeholder management Desirable: Broad understanding of multiple engineering disciplines Chartered Engineer from the Engineering Council and a member of a relevant professional body Nuclear design substantiation analysis and assessment exposure/experience Benefits: As well as a competitive pension scheme, BAE Systems also offers employee share plans, an extensive range of flexible discounted health, wellbeing and lifestyle benefits, including a green car scheme, private health plans and shopping discounts - you may also be eligible for an annual incentive. The Site Engineering - Nuclear Substantiation team: You will be joining a key team with some great development opportunities both in the technical and managerial streams. Native to the team, there are opportunities to get involved in the design substantiation and safety justification of a variety of site assets and facilities spanning mechanical, civil and structural, and electrical, in addition to getting in involved in finite element analysis and simulation using the latest cutting-edge tools and techniques. This also involves regular interaction and joint working with the Engineering Authority, Site Specialist Engineers, Site Safety Case, Human Factors, as well as Boat Services and Boat Build functions delivering an exceptionally varied and diverse scope. This interaction offers plenty of development opportunities both in terms of formal secondments and informal extended collaboration to suite you and your career aspirations. This could be an exciting and fulfilling opportunity waiting for you at the Nuclear Substantiation and Analysis team - SEA (DDC) at BAE Systems. Apply today to see how far you can go. We offer relocation support packages across all Submarine roles, subject to meeting eligibility criteria. Why BAE Systems? This is a place where you'll be able to make a real difference. You'll be part of an inclusive culture that values diversity of thought, rewards integrity, and merit, and where you'll be empowered to fulfil your potential. We welcome people from all backgrounds and want to make sure that our recruitment processes are as inclusive as possible. If you have a disability or health condition (for example dyslexia, autism, an anxiety disorder etc .) that may affect your performance in certain assessment types, please speak to your recruiter about potential reasonable adjustments. Please be aware that many roles at BAE Systems are subject to both security and export control restrictions. These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation. All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role , to allow for meaningful security vetting checks. Closing Date: 4th February 2026 We reserve the right to close this vacancy early if we receive sufficient applications for the role . Therefore, if you are interested, please submit your application as early as possible.

Job Title: Principal Engineer - Nuclear Substantiation (Site) Location: Barrow-in-Furness. We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role. Salary: £60,000 + depending on experience What you'll be doing: Authoring and managing nuclear site assets' design substantiation documentation supporting the site nuclear safety case Reviewing analyses , assessments, and calculations supporting nuclear design substantiation Supporting periodic review of safety Taking ownership of deliverables, and demonstrating high levels of autonomy and leadership Supporting the implementation of design substantiation requirements Working closely with a broad range of stakeholders including Site Safety Case, Human Factors, and Engineering Authority Teams Support in the development of other Nuclear Substantiation team members Collaborating with the wider business on site assets nuclear design substantiation related activities Your skills and experiences: Essential: Experience of the nuclear industry and nuclear safety regulations Degree qualified in a STEM subject or equivalent working experience. Ability to produce high quality technical reports Determined in driving all deliverable and associated activities through due process to completion Excellent stakeholder management Desirable: Broad understanding of multiple engineering disciplines Chartered Engineer from the Engineering Council and a member of a relevant professional body Nuclear design substantiation analysis and assessment exposure/experience Benefits: As well as a competitive pension scheme, BAE Systems also offers employee share plans, an extensive range of flexible discounted health, wellbeing and lifestyle benefits, including a green car scheme, private health plans and shopping discounts - you may also be eligible for an annual incentive. The Site Engineering - Nuclear Substantiation team: You will be joining a key team with some great development opportunities both in the technical and managerial streams. Native to the team, there are opportunities to get involved in the design substantiation and safety justification of a variety of site assets and facilities spanning mechanical, civil and structural, and electrical, in addition to getting in involved in finite element analysis and simulation using the latest cutting-edge tools and techniques. This also involves regular interaction and joint working with the Engineering Authority, Site Specialist Engineers, Site Safety Case, Human Factors, as well as Boat Services and Boat Build functions delivering an exceptionally varied and diverse scope. This interaction offers plenty of development opportunities both in terms of formal secondments and informal extended collaboration to suite you and your career aspirations. This could be an exciting and fulfilling opportunity waiting for you at the Nuclear Substantiation and Analysis team - SEA (DDC) at BAE Systems. Apply today to see how far you can go. We offer relocation support packages across all Submarine roles, subject to meeting eligibility criteria. Why BAE Systems? This is a place where you'll be able to make a real difference. You'll be part of an inclusive culture that values diversity of thought, rewards integrity, and merit, and where you'll be empowered to fulfil your potential. We welcome people from all backgrounds and want to make sure that our recruitment processes are as inclusive as possible. If you have a disability or health condition (for example dyslexia, autism, an anxiety disorder etc .) that may affect your performance in certain assessment types, please speak to your recruiter about potential reasonable adjustments. Please be aware that many roles at BAE Systems are subject to both security and export control restrictions. These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation. All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role , to allow for meaningful security vetting checks. Closing Date: 4th February 2026 We reserve the right to close this vacancy early if we receive sufficient applications for the role . Therefore, if you are interested, please submit your application as early as possible.

Job Title: Principal Engineer - Systems Engineering (Requirements & Acceptance) Location: Barrow-in-Furness - (Hybrid - 2 days on site per fortnight) - (dependent on business needs) Salary: Up to £60,000 - (Commensurate with skills and experience) What you'll be doing: Generate and assure consistency within the requirement set for 12 major C&I systems including Distributed Control Systems, Control Console and Vehicle Control Systems Support the wider C&I design for several C&I sub-systems for Secondary Propulsion, Platform Mechanical and Platform Electrical Manage various requirements stakeholders to provide consistency across the Centralised C&I team Support the development of a functional design for the systems within scope for Centralised C&I Assess the design against compliance to its requirements, ensuring that the design risk is mitigated as far as reasonably practicable Provide guidance and instruction on the engineering methods/process to deliver the engineering delivery plan Develop guidance and instruction on the engineering methods/process to ensure consistent technical goodness Work with the Engineering Delivery Team with varying levels of SQEP to develop technical solutions, developing the team members and nurturing their development Your skills and experiences: Essential Degree qualified in Engineering discipline Experience within regulated industry such as Defence, Oil and Gas, or Nuclear Professional knowledge and experience in C&I design across the whole lifecycle Stakeholder management & communication skills Well developed experience in full lifecycle requirements management Desirable: Supplier Requirements management experience Benefits As well as a competitive pension scheme, BAE Systems also offers employee share plans, an extensive range of flexible discounted health, wellbeing and lifestyle benefits, including a green car scheme, private health plans and shopping discounts - you may also be eligible for an annual incentive. The SSNA CCI Governance Team: As a Principal Engineer - Systems Engineering you will be working as part of the Centralised C&I Governance Team, responsible for developing the process, procedure and providing assurance for the next generation of Nuclear Attack Submarine. You will be working as part of a new founded governance team whereby you will have the opportunity to craft future ways of working, which could lay the foundations for the success of the SSNA C&I programme. We offer relocation support packages across all Submarines roles, subject to meeting eligibility criteria. Why BAE Systems? This is a place where you'll be able to make a real difference. You'll be part of an inclusive culture that values diversity of thought, rewards integrity, and merit, and where you'll be empowered to fulfil your potential. We welcome people from all backgrounds and want to make sure that our recruitment processes are as inclusive as possible. If you have a disability or health condition (for example dyslexia, autism, an anxiety disorder etc .) that may affect your performance in certain assessment types, please speak to your recruiter about potential reasonable adjustments. Please be aware that many roles at BAE Systems are subject to both security and export control restrictions. These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation. All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role , to allow for meaningful security vetting checks. Closing Date: 15th February 2026 We reserve the right to close this vacancy early if we receive sufficient applications for the role . Therefore, if you are interested, please submit your application as early as possible. "

Job Title: Principal HVAC Design Engineer Location: Barrow-in-Furness. We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this role Salary: Circa £55,000 What you'll be doing: Lead the end-to-end development of cutting-edge HVAC systems, ensuring they meet demanding performance, safety, and environmental standards Create and review high-impact engineering artefacts - from specifications and P&IDs to calculations and 3D models Drive advanced thermal, airflow, and pressure analyses toto validate system performance in challenging conditions Transform complex requirements into robust, innovative, and verifiable design solutions that set the benchmark for excellence Guide and influence engineers, suppliers, and design partners, shaping best-in-class HVAC integration across the platform Enhance design standards and evaluate specialist equipment, contributing to reviews, hazard assessments, and lifecycle verification Your skills and experiences: Essential Strong technical expertise in HVAC and mechanical system design, including psychometrics, thermal analysis, equipment specification, schematics and system balancing Awareness of multi-disciplinary system integration challenges across structures, electrical, controls, safety, and installation Excellent technical communication and reporting abilities, engaging both internal and external stakeholders STEM degree (or equivalent experience), ideally working toward or holding professional registration (CEng preferred) Desirable Proven experience working in complex or regulated industries, with knowledge of standards such as ISO 15138, BS EN 378, ASHRAE, or CIBSE Skilled in system performance assessment, design validation, modelling, and failure analysis Benefits: As well as a competitive pension scheme, BAE Systems also offers employee share plans, an extensive range of flexible discounted health, wellbeing and lifestyle benefits, including a green car scheme, private health plans and shopping discounts - you may also be eligible for an annual incentive. The Platform Mechanical Integrated Delivery Team: As a Principal HVAC Design Engineer, you'll be at the forefront of one of the UK's most advanced engineering programmes - leading the delivery of complex HVAC systems that shape the future of submarine platforms. You'll take ownership of high-impact systems, provide trusted technical authority, and work across multiple disciplines to drive innovative solutions into reality. You'll be part of the Platform Mechanical Integrated Delivery Team - a fast-moving, highly collaborative group of specialists pushing the boundaries of submarine engineering. This is a unique opportunity to work alongside experts from diverse backgrounds and partner organisations, contributing to mechanical capabilities that are critical to the success of the entire platform We offer relocation support across all Submarine roles, subject to meeting eligibility criteria Why BAE Systems? This is a place where you'll be able to make a real difference. You'll be part of an inclusive culture that values diversity of thought, rewards integrity, and merit, and where you'll be empowered to fulfil your potential. We welcome people from all backgrounds and want to make sure that our recruitment processes are as inclusive as possible. If you have a disability or health condition (for example dyslexia, autism, an anxiety disorder etc .) that may affect your performance in certain assessment types, please speak to your recruiter about potential reasonable adjustments. Please be aware that many roles at BAE Systems are subject to both security and export control restrictions. These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation. All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role , to allow for meaningful security vetting checks. Closing Date: 12th February 2026 We reserve the right to close this vacancy early if we receive sufficient applications for the role . Therefore, if you are interested, please submit your application as early as possible.

Job Title: Principal Signatures Engineer (Non-Acoustics) Location: Barrow-in-Furness (Onsite). We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role. Salary: circa £50,000 depending on skills and experience What you'll be doing Lead the development of the Stealth Engineering Above Water Signatures capability Collaborating with cross-functional teams to design low-signature equipment and systems Helping define technical requirements, test methods, and approval criteria Reviewing design documents to confirm that above water signature requirements are met Leading modelling efforts for radar, infrared, visual, and RF signatures using custom and commercial tools Developing testing methodologies to confirm signature performance Managing research with internal teams and university partners Improving stealth features on in-service submarines Your skills and experiences Essential A degree (or equivalent experience) in Maths, Physics, Electrical Engineering, or another STEM field Experience with modelling software or programming tools A strong grasp of electromagnetism, radar, or infrared and visual detection technologies Familiarity with stealth systems or signature control methods Desirable A postgraduate qualification in a STEM subject Experience in defence or large-scale manufacturing Knowledge of submarine or naval systems Benefits As well as a competitive pension scheme, BAE Systems also offers employee share plans, an extensive range of flexible discounted health, wellbeing and lifestyle benefits, including a green car scheme, private health plans and shopping discounts - you may also be eligible for an annual incentive. The Stealth Engineering Department: As a Principal Engineer, you will be working with a team tasked with assuring the stealth performance of submarines built in Barrow. From concept system designs to the assessment of the whole submarine as part of major commissioning trials, you will be involved in all aspects of the submarine lifecycle from concept through to support of the in-service fleet. We offer relocation support packages across all Submarines roles, subject to meeting eligibility criteria. Why BAE Systems? This is a place where you'll be able to make a real difference. You'll be part of an inclusive culture that values diversity of thought, rewards integrity, and merit, and where you'll be empowered to fulfil your potential. We welcome people from all backgrounds and want to make sure that our recruitment processes are as inclusive as possible. If you have a disability or health condition (for example dyslexia, autism, an anxiety disorder etc .) that may affect your performance in certain assessment types, please speak to your recruiter about potential reasonable adjustments. Please be aware that many roles at BAE Systems are subject to both security and export control restrictions. These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation. All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role , to allow for meaningful security vetting checks. Closing Date: 6th February 2026 We reserve the right to close this vacancy early if we receive sufficient applications for the role . Therefore, if you are interested, please submit your application as early as possible.

Job Title: Principal HVAC Design Engineer Location: Barrow-in-Furness. We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this role Salary: Circa £55,000 What you'll be doing: Lead the end-to-end development of cutting-edge HVAC systems, ensuring they meet demanding performance, safety, and environmental standards Create and review high-impact engineering artefacts - from specifications and P&IDs to calculations and 3D models Drive advanced thermal, airflow, and pressure analyses toto validate system performance in challenging conditions Transform complex requirements into robust, innovative, and verifiable design solutions that set the benchmark for excellence Guide and influence engineers, suppliers, and design partners, shaping best-in-class HVAC integration across the platform Enhance design standards and evaluate specialist equipment, contributing to reviews, hazard assessments, and lifecycle verification Your skills and experiences: Essential Strong technical expertise in HVAC and mechanical system design, including psychometrics, thermal analysis, equipment specification, schematics and system balancing Awareness of multi-disciplinary system integration challenges across structures, electrical, controls, safety, and installation Excellent technical communication and reporting abilities, engaging both internal and external stakeholders STEM degree (or equivalent experience), ideally working toward or holding professional registration (CEng preferred) Desirable Proven experience working in complex or regulated industries, with knowledge of standards such as ISO 15138, BS EN 378, ASHRAE, or CIBSE Skilled in system performance assessment, design validation, modelling, and failure analysis Benefits: As well as a competitive pension scheme, BAE Systems also offers employee share plans, an extensive range of flexible discounted health, wellbeing and lifestyle benefits, including a green car scheme, private health plans and shopping discounts - you may also be eligible for an annual incentive. The Platform Mechanical Integrated Delivery Team: As a Principal HVAC Design Engineer, you'll be at the forefront of one of the UK's most advanced engineering programmes - leading the delivery of complex HVAC systems that shape the future of submarine platforms. You'll take ownership of high-impact systems, provide trusted technical authority, and work across multiple disciplines to drive innovative solutions into reality. You'll be part of the Platform Mechanical Integrated Delivery Team - a fast-moving, highly collaborative group of specialists pushing the boundaries of submarine engineering. This is a unique opportunity to work alongside experts from diverse backgrounds and partner organisations, contributing to mechanical capabilities that are critical to the success of the entire platform We offer relocation support across all Submarine roles, subject to meeting eligibility criteria Why BAE Systems? This is a place where you'll be able to make a real difference. You'll be part of an inclusive culture that values diversity of thought, rewards integrity, and merit, and where you'll be empowered to fulfil your potential. We welcome people from all backgrounds and want to make sure that our recruitment processes are as inclusive as possible. If you have a disability or health condition (for example dyslexia, autism, an anxiety disorder etc .) that may affect your performance in certain assessment types, please speak to your recruiter about potential reasonable adjustments. Please be aware that many roles at BAE Systems are subject to both security and export control restrictions. These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation. All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role , to allow for meaningful security vetting checks. Closing Date: 12th February 2026 We reserve the right to close this vacancy early if we receive sufficient applications for the role . Therefore, if you are interested, please submit your application as early as possible.

Job Title: Principal Signatures Engineer (Non-Acoustics) Location: Barrow-in-Furness (Onsite). We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role. Salary: circa £50,000 depending on skills and experience What you'll be doing Lead the development of the Stealth Engineering Above Water Signatures capability Collaborating with cross-functional teams to design low-signature equipment and systems Helping define technical requirements, test methods, and approval criteria Reviewing design documents to confirm that above water signature requirements are met Leading modelling efforts for radar, infrared, visual, and RF signatures using custom and commercial tools Developing testing methodologies to confirm signature performance Managing research with internal teams and university partners Improving stealth features on in-service submarines Your skills and experiences Essential A degree (or equivalent experience) in Maths, Physics, Electrical Engineering, or another STEM field Experience with modelling software or programming tools A strong grasp of electromagnetism, radar, or infrared and visual detection technologies Familiarity with stealth systems or signature control methods Desirable A postgraduate qualification in a STEM subject Experience in defence or large-scale manufacturing Knowledge of submarine or naval systems Benefits As well as a competitive pension scheme, BAE Systems also offers employee share plans, an extensive range of flexible discounted health, wellbeing and lifestyle benefits, including a green car scheme, private health plans and shopping discounts - you may also be eligible for an annual incentive. The Stealth Engineering Department: As a Principal Engineer, you will be working with a team tasked with assuring the stealth performance of submarines built in Barrow. From concept system designs to the assessment of the whole submarine as part of major commissioning trials, you will be involved in all aspects of the submarine lifecycle from concept through to support of the in-service fleet. We offer relocation support packages across all Submarines roles, subject to meeting eligibility criteria. Why BAE Systems? This is a place where you'll be able to make a real difference. You'll be part of an inclusive culture that values diversity of thought, rewards integrity, and merit, and where you'll be empowered to fulfil your potential. We welcome people from all backgrounds and want to make sure that our recruitment processes are as inclusive as possible. If you have a disability or health condition (for example dyslexia, autism, an anxiety disorder etc .) that may affect your performance in certain assessment types, please speak to your recruiter about potential reasonable adjustments. Please be aware that many roles at BAE Systems are subject to both security and export control restrictions. These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation. All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role , to allow for meaningful security vetting checks. Closing Date: 6th February 2026 We reserve the right to close this vacancy early if we receive sufficient applications for the role . Therefore, if you are interested, please submit your application as early as possible.

Job Title: Principal Engineer - Nuclear Substantiation (Site) Location: Barrow-in-Furness. We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role. Salary: £60,000 + depending on experience What you'll be doing: Authoring and managing nuclear site assets' design substantiation documentation supporting the site nuclear safety case Reviewing analyses , assessments, and calculations supporting nuclear design substantiation Supporting periodic review of safety Taking ownership of deliverables, and demonstrating high levels of autonomy and leadership Supporting the implementation of design substantiation requirements Working closely with a broad range of stakeholders including Site Safety Case, Human Factors, and Engineering Authority Teams Support in the development of other Nuclear Substantiation team members Collaborating with the wider business on site assets nuclear design substantiation related activities Your skills and experiences: Essential: Experience of the nuclear industry and nuclear safety regulations Degree qualified in a STEM subject or equivalent working experience. Ability to produce high quality technical reports Determined in driving all deliverable and associated activities through due process to completion Excellent stakeholder management Desirable: Broad understanding of multiple engineering disciplines Chartered Engineer from the Engineering Council and a member of a relevant professional body Nuclear design substantiation analysis and assessment exposure/experience Benefits: As well as a competitive pension scheme, BAE Systems also offers employee share plans, an extensive range of flexible discounted health, wellbeing and lifestyle benefits, including a green car scheme, private health plans and shopping discounts - you may also be eligible for an annual incentive. The Site Engineering - Nuclear Substantiation team: You will be joining a key team with some great development opportunities both in the technical and managerial streams. Native to the team, there are opportunities to get involved in the design substantiation and safety justification of a variety of site assets and facilities spanning mechanical, civil and structural, and electrical, in addition to getting in involved in finite element analysis and simulation using the latest cutting-edge tools and techniques. This also involves regular interaction and joint working with the Engineering Authority, Site Specialist Engineers, Site Safety Case, Human Factors, as well as Boat Services and Boat Build functions delivering an exceptionally varied and diverse scope. This interaction offers plenty of development opportunities both in terms of formal secondments and informal extended collaboration to suite you and your career aspirations. This could be an exciting and fulfilling opportunity waiting for you at the Nuclear Substantiation and Analysis team - SEA (DDC) at BAE Systems. Apply today to see how far you can go. We offer relocation support packages across all Submarine roles, subject to meeting eligibility criteria. Why BAE Systems? This is a place where you'll be able to make a real difference. You'll be part of an inclusive culture that values diversity of thought, rewards integrity, and merit, and where you'll be empowered to fulfil your potential. We welcome people from all backgrounds and want to make sure that our recruitment processes are as inclusive as possible. If you have a disability or health condition (for example dyslexia, autism, an anxiety disorder etc .) that may affect your performance in certain assessment types, please speak to your recruiter about potential reasonable adjustments. Please be aware that many roles at BAE Systems are subject to both security and export control restrictions. These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation. All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role , to allow for meaningful security vetting checks. Closing Date: 4th February 2026 We reserve the right to close this vacancy early if we receive sufficient applications for the role . Therefore, if you are interested, please submit your application as early as possible.

Job Title: Principal Engineer - Nuclear Substantiation (Site) Location: Barrow-in-Furness. We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role. Salary: £60,000 + depending on experience What you'll be doing: Authoring and managing nuclear site assets' design substantiation documentation supporting the site nuclear safety case Reviewing analyses , assessments, and calculations supporting nuclear design substantiation Supporting periodic review of safety Taking ownership of deliverables, and demonstrating high levels of autonomy and leadership Supporting the implementation of design substantiation requirements Working closely with a broad range of stakeholders including Site Safety Case, Human Factors, and Engineering Authority Teams Support in the development of other Nuclear Substantiation team members Collaborating with the wider business on site assets nuclear design substantiation related activities Your skills and experiences: Essential: Experience of the nuclear industry and nuclear safety regulations Degree qualified in a STEM subject or equivalent working experience. Ability to produce high quality technical reports Determined in driving all deliverable and associated activities through due process to completion Excellent stakeholder management Desirable: Broad understanding of multiple engineering disciplines Chartered Engineer from the Engineering Council and a member of a relevant professional body Nuclear design substantiation analysis and assessment exposure/experience Benefits: As well as a competitive pension scheme, BAE Systems also offers employee share plans, an extensive range of flexible discounted health, wellbeing and lifestyle benefits, including a green car scheme, private health plans and shopping discounts - you may also be eligible for an annual incentive. The Site Engineering - Nuclear Substantiation team: You will be joining a key team with some great development opportunities both in the technical and managerial streams. Native to the team, there are opportunities to get involved in the design substantiation and safety justification of a variety of site assets and facilities spanning mechanical, civil and structural, and electrical, in addition to getting in involved in finite element analysis and simulation using the latest cutting-edge tools and techniques. This also involves regular interaction and joint working with the Engineering Authority, Site Specialist Engineers, Site Safety Case, Human Factors, as well as Boat Services and Boat Build functions delivering an exceptionally varied and diverse scope. This interaction offers plenty of development opportunities both in terms of formal secondments and informal extended collaboration to suite you and your career aspirations. This could be an exciting and fulfilling opportunity waiting for you at the Nuclear Substantiation and Analysis team - SEA (DDC) at BAE Systems. Apply today to see how far you can go. We offer relocation support packages across all Submarine roles, subject to meeting eligibility criteria. Why BAE Systems? This is a place where you'll be able to make a real difference. You'll be part of an inclusive culture that values diversity of thought, rewards integrity, and merit, and where you'll be empowered to fulfil your potential. We welcome people from all backgrounds and want to make sure that our recruitment processes are as inclusive as possible. If you have a disability or health condition (for example dyslexia, autism, an anxiety disorder etc .) that may affect your performance in certain assessment types, please speak to your recruiter about potential reasonable adjustments. Please be aware that many roles at BAE Systems are subject to both security and export control restrictions. These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation. All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role , to allow for meaningful security vetting checks. Closing Date: 4th February 2026 We reserve the right to close this vacancy early if we receive sufficient applications for the role . Therefore, if you are interested, please submit your application as early as possible.

Job Title: Principal Signatures Engineer (Non-Acoustics) Location: Barrow-in-Furness (Onsite). We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role. Salary: circa £50,000 depending on skills and experience What you'll be doing Lead the development of the Stealth Engineering Above Water Signatures capability Collaborating with cross-functional teams to design low-signature equipment and systems Helping define technical requirements, test methods, and approval criteria Reviewing design documents to confirm that above water signature requirements are met Leading modelling efforts for radar, infrared, visual, and RF signatures using custom and commercial tools Developing testing methodologies to confirm signature performance Managing research with internal teams and university partners Improving stealth features on in-service submarines Your skills and experiences Essential A degree (or equivalent experience) in Maths, Physics, Electrical Engineering, or another STEM field Experience with modelling software or programming tools A strong grasp of electromagnetism, radar, or infrared and visual detection technologies Familiarity with stealth systems or signature control methods Desirable A postgraduate qualification in a STEM subject Experience in defence or large-scale manufacturing Knowledge of submarine or naval systems Benefits As well as a competitive pension scheme, BAE Systems also offers employee share plans, an extensive range of flexible discounted health, wellbeing and lifestyle benefits, including a green car scheme, private health plans and shopping discounts - you may also be eligible for an annual incentive. The Stealth Engineering Department: As a Principal Engineer, you will be working with a team tasked with assuring the stealth performance of submarines built in Barrow. From concept system designs to the assessment of the whole submarine as part of major commissioning trials, you will be involved in all aspects of the submarine lifecycle from concept through to support of the in-service fleet. We offer relocation support packages across all Submarines roles, subject to meeting eligibility criteria. Why BAE Systems? This is a place where you'll be able to make a real difference. You'll be part of an inclusive culture that values diversity of thought, rewards integrity, and merit, and where you'll be empowered to fulfil your potential. We welcome people from all backgrounds and want to make sure that our recruitment processes are as inclusive as possible. If you have a disability or health condition (for example dyslexia, autism, an anxiety disorder etc .) that may affect your performance in certain assessment types, please speak to your recruiter about potential reasonable adjustments. Please be aware that many roles at BAE Systems are subject to both security and export control restrictions. These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation. All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role , to allow for meaningful security vetting checks. Closing Date: 6th February 2026 We reserve the right to close this vacancy early if we receive sufficient applications for the role . Therefore, if you are interested, please submit your application as early as possible.

Job Title: Principal Engineer - Nuclear Substantiation (Site) Location: Barrow-in-Furness. We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role. Salary: £60,000 + depending on experience What you'll be doing: Authoring and managing nuclear site assets' design substantiation documentation supporting the site nuclear safety case Reviewing analyses , assessments, and calculations supporting nuclear design substantiation Supporting periodic review of safety Taking ownership of deliverables, and demonstrating high levels of autonomy and leadership Supporting the implementation of design substantiation requirements Working closely with a broad range of stakeholders including Site Safety Case, Human Factors, and Engineering Authority Teams Support in the development of other Nuclear Substantiation team members Collaborating with the wider business on site assets nuclear design substantiation related activities Your skills and experiences: Essential: Experience of the nuclear industry and nuclear safety regulations Degree qualified in a STEM subject or equivalent working experience. Ability to produce high quality technical reports Determined in driving all deliverable and associated activities through due process to completion Excellent stakeholder management Desirable: Broad understanding of multiple engineering disciplines Chartered Engineer from the Engineering Council and a member of a relevant professional body Nuclear design substantiation analysis and assessment exposure/experience Benefits: As well as a competitive pension scheme, BAE Systems also offers employee share plans, an extensive range of flexible discounted health, wellbeing and lifestyle benefits, including a green car scheme, private health plans and shopping discounts - you may also be eligible for an annual incentive. The Site Engineering - Nuclear Substantiation team: You will be joining a key team with some great development opportunities both in the technical and managerial streams. Native to the team, there are opportunities to get involved in the design substantiation and safety justification of a variety of site assets and facilities spanning mechanical, civil and structural, and electrical, in addition to getting in involved in finite element analysis and simulation using the latest cutting-edge tools and techniques. This also involves regular interaction and joint working with the Engineering Authority, Site Specialist Engineers, Site Safety Case, Human Factors, as well as Boat Services and Boat Build functions delivering an exceptionally varied and diverse scope. This interaction offers plenty of development opportunities both in terms of formal secondments and informal extended collaboration to suite you and your career aspirations. This could be an exciting and fulfilling opportunity waiting for you at the Nuclear Substantiation and Analysis team - SEA (DDC) at BAE Systems. Apply today to see how far you can go. We offer relocation support packages across all Submarine roles, subject to meeting eligibility criteria. Why BAE Systems? This is a place where you'll be able to make a real difference. You'll be part of an inclusive culture that values diversity of thought, rewards integrity, and merit, and where you'll be empowered to fulfil your potential. We welcome people from all backgrounds and want to make sure that our recruitment processes are as inclusive as possible. If you have a disability or health condition (for example dyslexia, autism, an anxiety disorder etc .) that may affect your performance in certain assessment types, please speak to your recruiter about potential reasonable adjustments. Please be aware that many roles at BAE Systems are subject to both security and export control restrictions. These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation. All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role , to allow for meaningful security vetting checks. Closing Date: 4th February 2026 We reserve the right to close this vacancy early if we receive sufficient applications for the role . Therefore, if you are interested, please submit your application as early as possible.

Job Title: Principal Engineer - Systems Engineering (Requirements & Acceptance) Location: Barrow-in-Furness - (Hybrid - 2 days on site per fortnight) - (dependent on business needs) Salary: Up to £60,000 - (Commensurate with skills and experience) What you'll be doing: Generate and assure consistency within the requirement set for 12 major C&I systems including Distributed Control Systems, Control Console and Vehicle Control Systems Support the wider C&I design for several C&I sub-systems for Secondary Propulsion, Platform Mechanical and Platform Electrical Manage various requirements stakeholders to provide consistency across the Centralised C&I team Support the development of a functional design for the systems within scope for Centralised C&I Assess the design against compliance to its requirements, ensuring that the design risk is mitigated as far as reasonably practicable Provide guidance and instruction on the engineering methods/process to deliver the engineering delivery plan Develop guidance and instruction on the engineering methods/process to ensure consistent technical goodness Work with the Engineering Delivery Team with varying levels of SQEP to develop technical solutions, developing the team members and nurturing their development Your skills and experiences: Essential Degree qualified in Engineering discipline Experience within regulated industry such as Defence, Oil and Gas, or Nuclear Professional knowledge and experience in C&I design across the whole lifecycle Stakeholder management & communication skills Well developed experience in full lifecycle requirements management Desirable: Supplier Requirements management experience Benefits As well as a competitive pension scheme, BAE Systems also offers employee share plans, an extensive range of flexible discounted health, wellbeing and lifestyle benefits, including a green car scheme, private health plans and shopping discounts - you may also be eligible for an annual incentive. The SSNA CCI Governance Team: As a Principal Engineer - Systems Engineering you will be working as part of the Centralised C&I Governance Team, responsible for developing the process, procedure and providing assurance for the next generation of Nuclear Attack Submarine. You will be working as part of a new founded governance team whereby you will have the opportunity to craft future ways of working, which could lay the foundations for the success of the SSNA C&I programme. We offer relocation support packages across all Submarines roles, subject to meeting eligibility criteria. Why BAE Systems? This is a place where you'll be able to make a real difference. You'll be part of an inclusive culture that values diversity of thought, rewards integrity, and merit, and where you'll be empowered to fulfil your potential. We welcome people from all backgrounds and want to make sure that our recruitment processes are as inclusive as possible. If you have a disability or health condition (for example dyslexia, autism, an anxiety disorder etc .) that may affect your performance in certain assessment types, please speak to your recruiter about potential reasonable adjustments. Please be aware that many roles at BAE Systems are subject to both security and export control restrictions. These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation. All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role , to allow for meaningful security vetting checks. Closing Date: 15th February 2026 We reserve the right to close this vacancy early if we receive sufficient applications for the role . Therefore, if you are interested, please submit your application as early as possible. "

Job Title: Principal Engineer - Systems Engineering (Requirements & Acceptance) Location: Barrow-in-Furness - (Hybrid - 2 days on site per fortnight) - (dependent on business needs) Salary: Up to £60,000 - (Commensurate with skills and experience) What you'll be doing: Generate and assure consistency within the requirement set for 12 major C&I systems including Distributed Control Systems, Control Console and Vehicle Control Systems Support the wider C&I design for several C&I sub-systems for Secondary Propulsion, Platform Mechanical and Platform Electrical Manage various requirements stakeholders to provide consistency across the Centralised C&I team Support the development of a functional design for the systems within scope for Centralised C&I Assess the design against compliance to its requirements, ensuring that the design risk is mitigated as far as reasonably practicable Provide guidance and instruction on the engineering methods/process to deliver the engineering delivery plan Develop guidance and instruction on the engineering methods/process to ensure consistent technical goodness Work with the Engineering Delivery Team with varying levels of SQEP to develop technical solutions, developing the team members and nurturing their development Your skills and experiences: Essential Degree qualified in Engineering discipline Experience within regulated industry such as Defence, Oil and Gas, or Nuclear Professional knowledge and experience in C&I design across the whole lifecycle Stakeholder management & communication skills Well developed experience in full lifecycle requirements management Desirable: Supplier Requirements management experience Benefits As well as a competitive pension scheme, BAE Systems also offers employee share plans, an extensive range of flexible discounted health, wellbeing and lifestyle benefits, including a green car scheme, private health plans and shopping discounts - you may also be eligible for an annual incentive. The SSNA CCI Governance Team: As a Principal Engineer - Systems Engineering you will be working as part of the Centralised C&I Governance Team, responsible for developing the process, procedure and providing assurance for the next generation of Nuclear Attack Submarine. You will be working as part of a new founded governance team whereby you will have the opportunity to craft future ways of working, which could lay the foundations for the success of the SSNA C&I programme. We offer relocation support packages across all Submarines roles, subject to meeting eligibility criteria. Why BAE Systems? This is a place where you'll be able to make a real difference. You'll be part of an inclusive culture that values diversity of thought, rewards integrity, and merit, and where you'll be empowered to fulfil your potential. We welcome people from all backgrounds and want to make sure that our recruitment processes are as inclusive as possible. If you have a disability or health condition (for example dyslexia, autism, an anxiety disorder etc .) that may affect your performance in certain assessment types, please speak to your recruiter about potential reasonable adjustments. Please be aware that many roles at BAE Systems are subject to both security and export control restrictions. These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation. All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role , to allow for meaningful security vetting checks. Closing Date: 15th February 2026 We reserve the right to close this vacancy early if we receive sufficient applications for the role . Therefore, if you are interested, please submit your application as early as possible. "

A little more about your role Meeting the requirements of a 'Senior Engineer' grade and have a proven track record in both leading projects for your discipline and for an overall project team. Be able to demonstrate where your personal input has led to the commission being won or successfully delivered Able to work using initiative with minimal supervision on all technical aspects of their discipline or have specific specialist experience applicable to the role Able to work under the clear direction of the client and interpret the needs of the project as a whole to meet the full delivery needs Work in a joint leadership capacity within a mechanical, electrical and public health (MEP) discipline team providing design and technical advice in a project manager capacity on a wide range of projects Supervise the completion of detailed designs and supervise the work of others in this function Consider the feasibility of the project specific to the discipline and lead the overall feasibility study for the project Take responsibility for and direct others in the production of detailed and performance specification for the discipline subject to review by colleagues prior to issue Regularly brief the project team, including explaining the appointment Reviewing design programmes and ensuring that sufficient resource is available to complete the works Your Team Our team is comprised of 35 engineers working across the Mechanical, Electrical and Public Health specialisms Our team is based in the Cambridge office As part of our team, you would be working on some of our major projects including Gatwick and Heathrow Airports, Royal Berkshire Hospital and several public and private sector client sites. You will be reporting to our Technical Director for Mechanical engineering. You will be able to utilise graduate, assistant, senior and principal engineers in supporting roles around you, as well as dedicated BIM and Sustainability specialists to contribute to your projects. What we will be looking for you to demonstrate Working towards Chartership via an Engineering Council accredited honours degree or specific experience. Degree in Building services Engineering or applicable discipline. Or relevant equivalent experience. Working towards IET Engineer or Chartered Building Services Engineer. Key Technical Requirements Have a detailed understanding of the regulations applicable to the discipline and how to demonstrate this through calculation. Have working understanding of latest electrical design software packages to allow the allocation / direction of work on projects. Have an ability to sketch and communicate technical detail graphically and effectively Have the ability to engage with clients and contractors in technical discussions and debates. Have understanding of working with RevitMEP or other 3D design software to allow the allocation / direction of work on projects. Must be able to obtain UK vetting level of Security Check (SC) Electrical Design Skills: Low voltage distribution systems Low voltage standby generation UPS systems Cable calculations (via software and by hand) Lighting calculations (via software and by hand) Small power Fire alarms Intruder detection Access control & security systems Disabled call systems Data cabling and outlets Lightning protection