347 jobs found

Principal Engineer / Lead Full Stack Engineer Remote - Hybrid. UK Only. Typescript NodeJS Micro services SaaS Platform We're partnering with a high-growth UK SaaS business that is investing heavily in its engineering function and looking for an experienced Principal or Lead Engineer to help shape the future of its customer-facing platforms. This is a hands-on technical leadership role where you'll work closely with Product, Engineering and Business stakeholders to design, build and scale modern software solutions used by thousands of customers. Working within a mature engineering environment, you'll help drive architectural decisions, influence engineering standards, mentor developers and lead the delivery of high-quality software across a modern cloud-based platform. Tech Stack TypeScript js & Microservices js Redis SQL Server & SingleStore AWS CI/CD & DevSecOps What You'll Be Doing Leading solution design, architecture and technical decision-making Collaborating with Product teams to shape requirements and delivery plans Building and deploying production software in a fast-paced environment Driving engineering best practices, code quality and maintainability Supporting systems in production and improving platform performance Acting as a senior technical leader within an AI-enabled engineering environment What We're Looking For Strong commercial experience with TypeScript and modern JavaScript development Previous experience in a Staff Engineer, Principal Engineer, Lead Engineer or Senior Technical Leadership role Experience building and scaling SaaS or product-led platforms Strong understanding of software architecture, design patterns and clean code principles Experience working in cloud-native, CI/CD and DevSecOps environments Passion for engineering excellence, mentoring others and solving complex technical challenges Interest in AI-assisted software development and modern engineering practices What's On Offer Competitive salary ( 80k- 100k) plus benefits Flexible remote-first working with limited onsite requirements Significant technical influence across products and platform direction Modern engineering culture focused on quality, innovation and continuous improvement Opportunity to join a successful and growing UK technology company at an exciting stage of growth For more information, please contact Spectrum IT Recruitment. Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.

Top Tier Investment bank requires an experienced hands-on Java developer and technical architect with deep expertise in real-time third-party payments, high-throughput zero-downtime systems, and highly available, global-scale internet-facing APIs. This role is central to scaling the TFX technology platform for major retail clients and requires a strong individual contributor mindset: someone who can define architecture, make sound technical decisions, and remain close to implementation through hands-on development, code-level guidance, and practical delivery leadership. In the Technology division, we leverage innovation to build the connections and capabilities that power our Firm, enabling our clients and colleagues to redefine markets and shape the future of our communities. This is a Principal Software Engineering position at Vice President level, which is part of the job family responsible for developing and maintaining software solutions that support business needs. What You'll Do In The Role Act as a senior individual contributor who combines hands-on Java development with architectural leadership, remaining close to implementation and setting the technical standard through design, code-level guidance, and practical problem solving. Design, build, and evolve highly available, high-throughput, zero-downtime systems and internet-facing APIs that can scale securely for large retail and external client volumes. Lead architectural decisions across API design, domain modelling, integration patterns, resilience, observability, and operational robustness, ensuring the platform is fit for 24/7 global production use. Work across multiple software engineering teams to drive consistency in engineering standards, development practices, and delivery execution while enabling teams to build in parallel without fragmentation. Partner with business and product stakeholders to translate commercial objectives into scalable technical solutions, balancing speed, quality, resilience, and long-term platform integrity. Define and implement improvements to software engineering processes, tooling, and ways of working, helping teams deliver high-quality software efficiently and predictably. Provide technical leadership across design reviews, incidents, scale discussions, and production learning loops, ensuring operational insights are continuously fed back into the architecture and codebase. Represent the engineering function in senior forums, communicate clearly with both technical and business leadership, and act as a thought leader on modern API platforms, distributed systems, and secure internet-scale engineering. What You'll Bring To The Role Bachelor's degree in Computer Science, Engineering, or related field (or equivalent experience). Typically 8+ years of relevant experience. Strong experience as a hands-on software engineer, with deep Java expertise and a track record of building and delivering production-grade distributed systems. Proven ability to design and scale API platforms and real-time systems in high-volume environments (payments, FX, or similar domains preferred). Strong, hands-on experience with modern Java (Java 11+) and Spring Boot 3+, with the ability to design and implement production-grade services. Solid experience working with relational and document-oriented databases (SQL and NoSQL), including data modelling and performance optimisation. Experience building and operating containerised applications (e.g., Docker, Kubernetes), with a clear understanding of deployment, runtime behaviour, and production operations. Strong understanding of microservices architecture, including service decomposition, inter-service communication, and failure handling in distributed environments. Familiarity with private cloud environments and cloud-native principles, including scalability, resilience, and observability. Strong knowledge of modern SDLC practices (Agile, DevOps) and ability to improve engineering effectiveness across teams. Excellent communication skills, able to engage across engineering, product, and senior business stakeholders. Nice to have: Experience with distributed caching solutions and patterns to improve performance and scalability in high-throughput systems. To find out more about Huxley, please visit (url removed) Huxley, a trading division of SThree Partnership LLP is acting as an Employment Business in relation to this vacancy Registered office 8 Bishopsgate, London, EC2N 4BQ, United Kingdom Partnership Number OC(phone number removed) England and Wales

Title: Principal Software Engineer Role: Distributed Systems & Communications Location: Cambridgeshire Salary: 60- 80k Platform Recruitment has partnered with an innovative technology company developing mission-critical systems used by organisations worldwide. They're looking for a Principal Software Engineer to help shape the technical direction of their platform. Key Responsibilities: Lead architecture and implementation of systems in C#/.NET Build low-latency applications handling high-volume data traffic Drive technical vision and mentor engineers across the team Oversee code reviews, coding standards and CI/CD pipelines Key Requirements: 10+ years C# and .NET Core Strong distributed systems and microservices background Hands-on experience with RabbitMQ, Kafka or similar messaging technologies Proficiency with TCP/IP, gRPC and high-availability protocols Performance tuning, concurrency and multithreading expertise Docker, Kubernetes and CI/CD familiarity Relevant degree If this sounds like your next challenge, apply with a copy of your CV.

Senior / Principal Software Engineer Location: Kent (Onsite) 4 days per week. Salary: Up to 65,000 depending on experience Due to the nature of the work, applicants are required to obtain security clearance and must be a sole British national. Copello is working with a leading engineering, and technology organisation is seeking Senior / Principal Software Engineer to join its growing team developing advanced, safety-critical systems. This is an opportunity to work on highly complex products within a regulated environment, contributing to the design, development and delivery of cutting-edge software solutions used in mission-critical applications. You'll play a key role in shaping software architectures, solving complex technical challenges and supporting projects throughout the full engineering lifecycle. Key Responsibilities Lead the design and development of embedded software solutions for complex systems. Define software and system architectures from requirements using structured design methodologies. Support integration, verification and validation activities within a safety-critical environment. Participate in design reviews, technical decision-making and continuous improvement initiatives. Engage with customers and stakeholders to understand requirements and resolve technical challenges. Contribute to the successful delivery of high-quality, compliant engineering solutions. About You A degree or equivalent qualification in Software Engineering, Electronics Engineering, Physics, Mathematics or a related discipline. Strong commercial experience developing software in C and/or C++. Experience designing software architectures using UML or other model-based design techniques. Familiarity with tools such as CAMEO, Enterprise Architect, Rhapsody or similar modelling environments. Experience developing software that interfaces with hardware in real-time or embedded environments. Knowledge of safety-critical development standards and regulated engineering processes.

Principal Embedded Software Engineer Location: Fareham, Hampshire (Hybrid working available) Salary: £70,000 £80,000 Job Type: Full-time, Permanent Visa Sponsorship Available An advanced technology company based in Fareham, Hampshire is looking to recruit a Principal Embedded Software Engineer to join its growing engineering team. This is a senior-level opportunity for an experienced engineer to lead the development of embedded software and algorithms, working across the full product lifecycle while mentoring engineers and driving technical excellence. The Role As a Principal Embedded Software Engineer, you will take ownership of the design, development and delivery of embedded software solutions. You will lead technical direction, coordinate cross-functional teams and ensure high-quality delivery across complex engineering projects. This role combines hands-on development with technical leadership, offering the opportunity to work on cutting-edge technology and influence product direction. Key Responsibilities Technical Leadership & Delivery Lead end-to-end development of embedded software and firmware solutions Define software architecture and key design decisions Coordinate project delivery, ensuring timelines and quality targets are met Provide technical guidance and mentorship to engineers Drive Agile/SCRUM processes including sprint planning and reviews Collaborate with cross-functional teams including hardware and systems engineers Manage technical risks, dependencies and trade-offs across projects Act as a key technical interface for internal and external stakeholders Technical Responsibilities Develop embedded firmware using C and low-level programming techniques Design, implement, debug and test software for embedded systems Develop and optimise algorithms using tools such as Python or MATLAB Work on low-level drivers and hardware interaction Support system integration and troubleshooting on embedded platforms Contribute across the full software development lifecycle What We re Looking For Essential: Degree in Electronics, Computer Science, Software Engineering or similar Strong experience in embedded software development using C Proven experience leading or coordinating technical projects Experience working across the full software development lifecycle Strong understanding of software architecture and system design Hands-on experience with embedded systems debugging and development Experience using version control tools such as Git or SVN Strong communication skills and ability to work across multidisciplinary teams Desirable: Experience with high-level languages such as Python, MATLAB or LabVIEW Knowledge of Digital Signal Processing (DSP) or similar algorithms Experience with Agile development methodologies Familiarity with test-driven development or behaviour-driven development Why Apply? Salary £70,000 £80,000 Senior, technically influential role within a growing engineering team Opportunity to lead projects and mentor engineers Work on advanced technology and complex systems Hybrid working and strong benefits package Visa sponsorship available To Apply For more information or to apply, please contact: Lewis Phillips (phone number removed) (url removed)

Principal Consultant - LCA & Circular Economy Location: London (Hybrid Working) Salary: 52,000 - 63,000 Overview An established sustainability and engineering consultancy is seeking a Principal Consultant to lead the delivery of Whole Life Carbon , Life Cycle Assessment (LCA) and Circular Economy projects. This role offers an exciting opportunity to work on a diverse portfolio of new build, refurbishment and fit-out developments. If you are an experienced consultant with a passion for sustainability, this position will allow you to take ownership of impactful projects, mentor junior team members, and contribute to the growth of a dynamic and expanding sustainability team. Benefits A competitive benefits package, including: Salary: 52,000 - 63,000. Hybrid working model (up to 3 days working from home). Private healthcare coverage. Enhanced pension contributions. Support for professional memberships and certifications. Additional holiday incentives. Access to electric vehicle and cycle-to-work schemes . Day-to-Day Your typical day will involve: Collaborating with clients and project teams to deliver sustainability-focused solutions. Conducting detailed LCA and Embodied Carbon assessments using OneClick LCA. Preparing and presenting Circular Economy strategies and reports. Managing project timelines, budgets, and deliverables. Providing mentorship and guidance to junior consultants. Staying updated on industry standards and best practices to ensure compliance and innovation. Responsibilities As a Principal Consultant, you will: Lead Whole Life Carbon and Embodied Carbon assessments using OneClick LCA . Deliver Circular Economy Statements and develop innovative strategies. Produce high-quality reports in line with BREEAM and GLA requirements. Advise project teams on carbon reduction opportunities and sustainable design strategies. Manage project delivery, including budgets and client relationships, ensuring timely and high-quality outcomes. Mentor and support junior consultants, fostering their professional growth. Contribute to business development efforts, including preparing proposals and expanding service offerings. Qualifications To excel in this role, you will need: A minimum of 5 years' experience in LCA, Embodied Carbon, or Circular Economy consultancy. Proficiency in using OneClick LCA software. Demonstrated experience delivering BREEAM and GLA-compliant assessments . A strong understanding of RICS , LETI , UKGBC , and Net Zero Carbon guidance. Excellent project management and client-facing skills. A relevant degree in Sustainability , Engineering , or a related discipline. If you are ready to take the next step in your career and make a meaningful impact in the field of sustainability, we would love to hear from you. For a confidential discussion, please get in touch.

Principal Full Stack Engineer & Architecture Lead, Great Company going through massive growth. London (Hybrid) £100,000-£110,000 + Benefits Command Recruitment is proud to be partnering with an ambitious and rapidly growing healthcare company that is transforming access to specialist healthcare services across the UK. Expected to hit £180M T/O this year from a start only 3 Years ago! This is the time to join this fast-moving and Growing Business This is a fantastic opportunity for an experienced Principal Engineer or Technical Architecture Lead to play a key role in shaping a modern, cloud-native healthcare platform that is making a genuine impact on people's lives. Our client is building one of the UK's most innovative healthcare service platforms and is seeking a hands-on technical leader who can combine strategic architecture with strong full-stack engineering expertise. The Opportunity As Principal Full Stack Engineer & Architecture Lead, you will take ownership of platform architecture, engineering standards, cloud infrastructure, and technical delivery across the business. You'll work closely with senior leadership, including the CTO, Director of Engineering, Product teams, and Data teams, to drive scalability, resilience, performance, and engineering excellence while remaining hands-on with development. This role would suit someone who enjoys solving complex technical challenges, mentoring engineers, and building modern distributed systems within a fast-moving product-led environment. Key Responsibilities Architecture & Technical Leadership Lead platform architecture and technical design decisions Define scalable, secure, and maintainable engineering standards Provide technical leadership across frontend, backend, APIs, infrastructure, and integrations Drive platform scalability, resilience, observability, and performance Partner with leadership teams to align technical strategy with business goals Act as the senior technical authority for complex engineering decisions Hands-On Engineering Contribute directly to backend and frontend production code Build scalable applications using Node.js, TypeScript, React, and Next.js Design and develop AWS serverless and event-driven systems Develop and optimise PostgreSQL databases and queries Support engineering teams with the delivery of complex technical initiatives Cloud, DevOps & Infrastructure Design and maintain CI/CD pipelines and deployment automation Build Infrastructure as Code using Terraform or AWS CDK Improve engineering workflows, release processes, and platform reliability Implement best practices across monitoring, logging, security, testing, and resilience Ensure systems remain secure, scalable, and compliant with GDPR and healthcare regulations Engineering Leadership Mentor and support engineers across the organisation Conduct code reviews and promote engineering best practices Help establish coding standards, testing frameworks, and operational excellence Foster a collaborative, high-performing engineering culture Technology Stack Cloud & Infrastructure AWS (Lambda, API Gateway, EventBridge, SQS, Step Functions, S3, CloudWatch, RDS) Backend Node.js, TypeScript Frontend React, Next.js, Tailwind CSS Data & Architecture PostgreSQL, Serverless, Event-Driven Microservices DevOps & Observability Terraform / AWS CDK, CI/CD, Monitoring & Logging About You We are looking for a technically strong and commercially minded engineering leader with: 8+ years of software engineering experience Proven experience operating at Principal Engineer, Staff Engineer, or Architecture Lead level Strong AWS cloud and serverless architecture expertise Excellent full-stack development experience across Node.js, TypeScript, React/Next.js, and PostgreSQL Experience leading technical direction across engineering teams Strong understanding of distributed systems and event-driven architecture Experience designing scalable, secure, production-grade systems A hands-on mindset with a passion for building high-quality technology Desirable Experience Life Science or regulated industry experience GDPR and data security knowledge AI/ML integrations or personalisation systems SaaS or startup experience What's On Offer £ salary Hybrid working (office 2-3 days per week) Pension contribution Birthday day off Modern equipment provided Team events and collaborative culture Opportunity to shape a fast-scaling healthcare platform with genuine social impact

Our client, a leading company in the Defence and Security sector, is currently seeking a highly skilled and motivated Principal Antenna Engineer and Capability Lead to join their Business. Key Responsibilities: Design, develop, and test innovative antenna and RF product solutions, considering emerging technologies Conduct electromagnetic simulations and analysis to optimise antenna performance Support the development of Automated Test Equipment (ATE) and analysis software Analyse, review, and substantiate requirements with customers Drive the test, characterisation, and verification of prototype and product designs, ensuring qualification and requirements compliance Represent the team and business unit in customer and internal stakeholder interactions Manage bids, develop concept designs, and generate technical proposals to drive new business Create and maintain project plans, providing status updates for stakeholders Set clear objectives and provide support and mentorship to the Antenna Design Team Job Requirements: Degree in a relevant Engineering field Experience in leading and managing high-performance teams with senior stakeholder interaction Strong theoretical and practical RF design experience Proficiency in RF principles, transmission line theory, and antenna theory Expertise in using electromagnetic simulation software (e.g., CST MWS, FEKO, HFSS) Experience with RF test and measurement equipment such as Vector Network Analysers and Spectrum Analysers Significant experience in antenna design and knowledge of active/passive RF and microwave circuit design Experience with antenna test ranges/anechoic chambers Design for Manufacture and Assembly experience is desirable Excellent verbal and written communication skills, along with strong interpersonal skills Proficiency in MS Office and PC skills Benefits: Opportunity to work on a variety of challenging projects within the Defence and Security sector Professional development and training opportunities Supportive and collaborative work environment Comprehensive employee benefits package If you are an experienced Principal Antenna Engineer looking for a new leadership opportunity to further develop your career in the Defence and Security sector, we would love to hear from you. Apply now to join our client's dynamic and talented team.

Senior Structural and Mechanical Systems Engineer Space/Satellite Guildford Hybrid Competitive salary & package We are seeking a Senior Structural and Mechanical Systems Engineer to help shape and influence current and future flight spacecraft structures and mechanical systems. As part of the mechanical team, you will play a vital role in spacecraft layout, structural developments, and the analysis of new structural systems. You will oversee structural and mechanical sub-systems from concept through to ground verification testing and flight, working closely with mechanical design and principal engineers. The role involves a combination of structural design, analysis, and testing activities, as well as supporting the development of spacecraft mechanical systems to ensure reliable operation in demanding environments. This work focuses on delivering innovative and robust solutions for spacecraft structures and mechanical systems Key Tasks Technical Leadership : Serve as the Technical Lead for structural and mechanical system design for spacecraft structures. Work Package Management: Develop and maintain schedules and budgets for mechanical and structural Work Packages, reporting budget and schedule deviations and managing risks. Risk Management: Identify, monitor, and mitigate structural and mechanical systems risks. Requirement Management: Flow down customer requirements to subsystem and hardware levels, ensuring compliance and validation. Development Plans: Define, organise, and implement structural development, qualification, and validation plans. Finite Element Analysis (FEA) and Analytical Modelling: Develop and manage analytical models for structures and subsystems using FEA, performing static, dynamic, and quasi-static analyses to validate numerical results with test data and determine structural margins of safety. Refine numerical models to ensure alignment with experimental data. Environmental Specifications : Derive environmental envelope specifications from launch documentation, analytical results, and test data. Mass Properties Management: Manage structural and system mass properties including mass, centre of gravity and moments/ products of inertia. Test Campaigns: Define, organise, and lead structural testing (vibration, static, acoustic, shock, and mass properties) Documentation: Maintain design/analysis logs, document analysis activities, and write test and compliance reports. Customer Engagement: Present work at internal and external reviews, ensuring effective communication and reporting. PERSON SPECIFICATION Qualifications A good degree in Mechanical Engineering or equivalent Experience 10+ years analytical design experience for structures Knowledge & Skills Use of software packages including Nastran, HyperMesh, SmartOffice, MATLAB, Ansys Workbench, Solidworks Analysis of both lightweight metallic and composite materials to provide margin of safety/reserve factors using a combination of hand stressing and FEA. Experience of spacecraft level static, dynamic and thermo-elastic analysis using the latest FEA tools. Exposure to spacecraft development and qualification planning Experience of spacecraft mechanical testing such as vibration, static and shock. Ability to manage work packages and be responsible for delivery of work to budget and on schedule Good management and organisational skills Benefits Highly competitive Salary. Flexible working policies. 32 days annual leave + BH. Annual Company Bonus Scheme. Up to 8% employer pension contribution. Life Assurance (6X salary). Private Health Care. Enhanced Maternity & Paternity leave. Multiple Discount, Memberships schemes.

Principal Design Engineer - CAB Structures Staffordshire - ST14 Highly competitive salary plus industry leading benefits. Our client, a globally recognised engineering manufacturer, is seeking a Principal Design Engineer to join their team. This is an excellent opportunity to play a key role in the design and development of cab structures and operator systems for advanced machinery. The position combines hands-on design engineering with technical leadership, supporting projects from concept through to production. You'll work closely with cross-functional teams to deliver robust, compliant and cost-effective engineering solutions while driving continuous product improvement. Key Responsibilities Act as the technical authority for cab and operator environment systems, including cab structures, ergonomics, controls, visibility, HVAC, noise and vibration. Lead operator environment activities throughout the product development lifecycle, ensuring robust and timely delivery of engineering solutions. Ensure designs comply with relevant legislation, standards and internal engineering requirements. Own and manage technical risk through activities such as DFMEA, design reviews and validation planning. Drive standardisation, component reuse and complexity reduction across product platforms. Work closely with Structures, Electrical & Electronic Engineering, Manufacturing, Purchasing, Quality and other business functions to deliver integrated solutions. Support and challenge suppliers to develop technically robust and cost-effective designs. Liaise with testing and development teams to define and support validation activities, including endurance, customer evaluation and development builds. Investigate and resolve engineering issues arising from testing, production and field performance, feeding lessons learned into future product development. Mentor and support engineers within the team, helping to develop capability and maintain high technical standards. About You Strong background in structural, mechanical or cab system design within a complex engineering environment. Good understanding of engineering compliance, legislation and design governance. Experience designing fabricated structures, welded assemblies and complex mechanical systems. Knowledge of ergonomics, operator controls and human-machine interaction. Experience leading DFMEA activities and structured engineering problem solving. Proficient in 3D CAD software (NX advantageous but not essential). Experience with plastics design and injection moulded components would be highly beneficial. Able to balance technical performance, quality, cost and manufacturability throughout the design process. Backgrounds from off-highway, automotive, rail, aerospace or other regulated engineering sectors will be considered. What's on Offer? Excellent salary package. Outstanding benefits package including healthcare, 10% matched pension and employee rewards. Opportunity to join a world-class engineering organisation. Long-term career development and progression opportunities. A varied role combining hands-on design with technical leadership. Your CV will be forwarded to Jonathan Lee Recruitment, a leading engineering and manufacturing recruitment consultancy established in 1978. The services advertised by Jonathan Lee Recruitment are those of an Employment Agency. In order for your CV to be processed effectively, please ensure your name, email address, phone number and location (post code OR town OR county, as a minimum) are included.

Overview An established engineering organisation delivering secure, mission-critical technology solutions is seeking a Principal Software Engineering Manager to provide technical leadership across a portfolio of complex development programmes. This role combines strategic software leadership with hands-on technical oversight, supporting the delivery of embedded and application software solutions within highly regulated environments. You will work across multiple engineering disciplines, helping to shape software architecture, development practices, tooling, and technical direction while supporting a team of experienced software engineers. Key Responsibilities Provide technical leadership across multiple software projects, ensuring robust architectures, effective reuse of software components, and adoption of appropriate development tools and methodologies. Support software leads and project teams in defining software requirements, architecture, design approaches, and implementation strategies. Drive consistency in software engineering standards, processes, and best practice across development teams. Work closely with systems, hardware and firmware engineers to ensure integrated and coherent technical solutions. Support project planning activities, helping teams deliver value to customers through well-structured development roadmaps. Review software designs, architectures, and implementation approaches, providing guidance and resolving technical challenges where required. Promote modular software design and the creation of reusable software frameworks and components. Lead the adoption of modern software engineering practices including CI/CD, DevOps, DevSecOps, automated testing, and secure development principles. Champion continuous improvement initiatives relating to software tools, processes, standards, and ways of working. Mentor and develop engineers, supporting technical growth across the wider software function. Lead technical reviews and approve key engineering documentation. Contribute to customer proposals, bids and technical solution development, including effort estimation and risk assessment. Support information security and governance requirements in line with organisational and customer obligations. Skills & Experience Significant experience in software engineering leadership within a complex engineering environment. Strong background in one or more of the following: C/C++ Rust Embedded software development Real-Time Operating Systems (RTOS) Windows or Linux application development Device driver development Proven track record delivering complex software solutions throughout the full development lifecycle. Strong understanding of software architecture, design methodologies, coding standards, verification, validation and configuration management. Experience implementing software development best practice, including automated testing and continuous integration frameworks. Familiarity with version control, defect management and change management tools. Experience working within regulated industries such as defence, aerospace, space, communications or other safety/security-critical sectors. Knowledge of modelling techniques and tools such as UML, SysML or Enterprise Architect would be beneficial. Exposure to secure software development and cryptographic systems would be advantageous. Degree qualified in Software Engineering, Computer Science, Electronics Engineering, Mathematics, Physics or a related discipline.

Location: Glasgow Head Office Full time, permanent role (37.5 hours per week) JOB PURPOSE: This role will be responsible for driving the design, architecture and delivery of AI-powered solutions across the group. It will be critical in implementing production-grade systems that leverage LLMs, with a focus on reliability and cost-aware deployment. As a Lead, this role will bridge cutting-edge research and production engineering - setting technical direction, mentoring a high-performing team, and ensuring AI solutions are robust, scalable, and responsible. PRINCIPAL TASKS AND RESPONSIBILITIES Design and implement secure and scalable LLM-powered applications using modern Generative AI architectures Collaborate with product, data and ops team to identify the issues in hand and explore how AI can open up new ways of solving them Use AI coding assistants such as Claude Code or equivalent as part of day-to-day development workflows to improve efficiency, quality, and delivery speed Optimize performance for latency, cost, accuracy, security and reliability Ensure all software that is created is in line with the technical roadmap, development guidelines and security standards. Troubleshoot, debug, and resolve technical issues across the product. Ensure code reviews and automated tests to support quality assurance Participate in all meeting arounds Refinement, Planning and Delivery. As a Lead: Lead the architecture and end-to-end development of AI solutions, from prototyping to production Collaborate with the Product team to identify candidate use cases for AI, helping them understand the art of the possible with today's AI capabilities and where it can deliver real business value. Work closely with IT Governance and Cyber Security teams to ensure AI solutions are secure by design and that data is handled responsibly, ethically, and in line with organisational policies. Define technical standards, best practices, and engineering roadmaps for AI initiatives Provide technical leadership and mentor developers Stay current with advancements in AI, evaluate emerging technologies, assess their applicability to the product, and help shape the organisation's AI journey Own quality, reliability, and performance of AI systems including monitoring, testing, and observability Conduct security and architectural reviews, and foster a culture of engineering excellence Communicate technical trade-offs and progress clearly to both technical and non-technical stakeholders Evaluate and select AI frameworks, LLM providers, vector databases, and cloud infrastructure Champion true AI Engineering across the team, leveraging AI tools to move faster without sacrificing code quality, security, or maintainability Basic Behaviours: Ensure that continuous improvement is baked into everything we do. Support the development of a strong culture focused on transparency, collaboration, and high performance Make time to support other members of the team and answer questions Take responsibility of your personal objectives and those of the team. Take ownership of deadlines and releases for yourself and the team. Any quality issues of the software the team owns should be looked on as a temporary and unacceptable state of affairs. Every opportunity should be taken to rectify problems, in conjunction with the completion of team and individual objectives. Professional / Academic / Qualifications 5+ years experience in a development role (essential) Degree level qualification (desirable) Specific Knowledge AI Hands on experience with Gen AI and LLM's Experience with RAG, Prompt engineering, Evaluation techniques AI infrastructure (vector stores, embeddings, model serving) AI agent frameworks and orchestration Understanding of embeddings, vector search Claude Code or equivalent Secure AI solution design Responsible AI principles Demonstrable AI engineering skills Agentic Tooling (desirable) Knowledge of Facilities Management domain (desirable) Background in domain-driven design, event-driven systems, or clean architecture (desirable) Software Engineering Typescript / Python / React / node js Microsoft .NET stack, SQL Server, NoSQL DB (eg Cosmos DB) REST API design and integration Design patterns and clean architecture GIT, Azure DevOps, CI/CD Pipelines, IaaC Demonstrated Behaviours Proactive, self-driven, and able to work independently or as part of a team Focused on outcomes rather than outputs Excellent verbal and written communication skills Pragmatic and flexible attitude Excellent interpersonal skills Attention to detail Mentoring/coaching skills

IT Services Engineer - 29,500 - 37,000 - Harrogate Our client is seeking an experienced IT Engineer to join their established IT Operations team, supporting customers across the North Yorkshire region. This is an excellent opportunity for a customer-focused IT professional who enjoys a hands-on role, combining on-site and remote support across multiple locations. You'll play a key role in delivering high-quality IT services, troubleshooting technical issues, and ensuring users receive an efficient and responsive support experience. The role offers a varied workload, autonomy, and the opportunity to work within a well-established organisation supporting critical operational environments. Key Responsibilities Deliver first and second-line IT support across multiple customer sites. Troubleshoot and resolve hardware, software, application, and peripheral issues. Support desktops, laptops, printers, mobile devices, and end-user technologies. Provide both remote and on-site technical support to users. Assist with the installation, configuration, and maintenance of IT equipment. Ensure incidents and service requests are resolved within agreed service levels. Maintain accurate documentation of support activities and technical procedures. Work collaboratively with wider IT teams to deliver service improvements and project work. Skills & Experience: Essential Previous experience within an IT Support, Desktop Support, Service Desk, or IT Engineer role. Strong troubleshooting and problem-solving skills. Experience supporting Microsoft Windows environments. Knowledge of desktop, laptop, printer, and peripheral support. Excellent customer service and communication skills. Ability to manage and prioritise a busy workload. Full UK driving licence and access to your own vehicle for business use. Desirable Experience supporting users across multiple sites. Familiarity with Microsoft 365 technologies. Experience working within service-driven IT environments. Exposure to healthcare, public sector, or regulated environments. What's on Offer Competitive salary Company pension scheme Free parking Ongoing training and development opportunities Varied and rewarding role supporting a diverse user base Opportunity to work within a collaborative and supportive IT team Additional Information This role will involve regular travel across customer locations throughout North Yorkshire. Applicants must hold a full UK driving licence and have access to a vehicle for business use. The Package: If successful our client is offering a salary of 29,500 - 37,000 for the IT services engineer role, favourable holiday allowance & company pension scheme How to Apply: If you are interested in hearing more about this IT services engineer vacancy or interested in applying for the role please email me at or contact Principal IT Directly on LinkedIn. INDGH

Principal Control Systems Engineer Sheffield - Hybrid Full-time Are you ready to lead complex control systems projects from concept through to delivery? Do you enjoy combining technical leadership with client-facing responsibility? Could this be the step up where your engineering expertise shapes major projects in highly regulated environments? What's in it for you? Fantastic basic salary 25 days annual leave plus 8 bank holidays, plus buy/sell up to 5 days leave per year Hybrid working - 2 days from home per week Flexible start and finish Times - Start between 7-10am and finish between 3-6pm, plus Flexi Fridays Pension contributions are 4.5% employer, subject to a 5% contribution by the employee Employee Health Cash Plan Life assurance What will you be doing? Leading the design, development and integration of advanced control systems Reviewing and approving system architectures, designs and technical specifications Taking ownership of testing, validation and commissioning activities Managing technical delivery across projects, including quality, performance and compliance Working closely with software, hardware, workshop and project teams to deliver successful outcomes Leading technical discussions with clients and project teams to resolve issues Supporting bids and providing technical sign-off during the tendering process Mentoring engineers, developing team capability and providing line management support Managing project resources, budgets, reporting and close-out activities Where you'll be doing it? You'll be joining a long-established engineering business with over 50 years of experience delivering digital transformation and system integration solutions across energy, nuclear and industrial manufacturing. The company works on complex, safety-critical projects and has a strong presence across the UK. What you'll need: At least 7 years' experience in systems engineering, hardware design or electrical design Strong knowledge of control systems and associated software and hardware Experience with tools such as AutoCAD Electrical, SCADA packages, PLC packages and HMI packages Experience applying systems engineering principles and system integration processes Good understanding of project management, including cost control and client management Basic understanding of contractual and commercial requirements Experience of software development and hardware integration Experience working on client sites Strong communication and presentation skills Ability to provide technical input during bids, including estimating time and effort Leadership experience, with the ability to mentor, guide and support engineering teams Experience in highly regulated industries would be useful We appreciate your CV may not be up to date. No problem, just apply and we can deal with that later. Important Information: We endeavour to process your personal data in a fair and transparent manner. In applying for this role, Russell Taylor will be acting within your interest and will contact you in relation to the role, either by email, phone or text message. For more information see our Privacy Policy on our website. It is important you are aware of your individual rights and the provisions the company has put in place to protect your data. If you would like further information on the policy or GDPR please get in touch with us here.

REMOTE Principal React Engineer (Software Engineer Programmer Developer Architect Principal ReactJS React-JS React.JS Playwright TypeScript Redux Saga Ag-Grid Fixed Income JavaScript Node Credit Rates Bonds Agile Buy Side Asset Manager Investment Management Finance Front Office Trading Financial Services UI Front End Front End EMS OMS Execution Order Management System Portfolio Banking Remote) required by our trading client in London. You MUST have the following: Strong experience as a Lead React Developer/Software Engineer/Programmer Advanced OpenFin Excellent JavaScript, TypeScript and React Experience building Front Office trading systems Agile The following is DESIRABLE, not essential: Ag-Grid Fixed Income Role: REMOTE Principal React Engineer (Software Engineer Programmer Developer Architect Principal ReactJS React-JS React.JS Playwright TypeScript Redux Saga Ag-Grid Fixed Income JavaScript Node Credit Rates Bonds Agile Buy Side Asset Manager Investment Management Finance Front Office Trading Financial Services UI Front End Front End EMS OMS Execution Order Management System Portfolio Banking Remote Consultant Contract Consultancy) required by our trading client in London. You will join a small department of 5 teams who are modernising an execution and order management trading system. You will come in as an OpenFin Expert to sit across the five teams in a Principal Engineer/Architect role. The tech stack is OpenFin, React, TypeScript, Ag-Grid, PlayWright and Node on the Front End. The five team have 5-8 full-stack engineers in each team, including people with OpenFin expertise. You will be hired to bolster this expertise. The role can be 100% remote, however, if you are local, you could go into the office as you wish. There is ongoing work with the client. In December, this will renew for a full 12 months. Rate: £550 - 750/day Duration: 6 - 12 months

REMOTE Principal React Engineer (Software Engineer Programmer Developer Architect Principal ReactJS React-JS React.JS Playwright TypeScript Redux Saga Ag-Grid Fixed Income JavaScript Node Credit Rates Bonds Agile Buy Side Asset Manager Investment Management Finance Front Office Trading Financial Services UI Front End Front End EMS OMS Execution Order Management System Portfolio Banking Remote) required by our trading client in London. You MUST have the following: Strong experience as a Lead React Developer/Software Engineer/Programmer Advanced OpenFin Excellent JavaScript, TypeScript and React Experience building Front Office trading systems Agile The following is DESIRABLE, not essential: Ag-Grid Fixed Income Role: REMOTE Principal React Engineer (Software Engineer Programmer Developer Architect Principal ReactJS React-JS React.JS Playwright TypeScript Redux Saga Ag-Grid Fixed Income JavaScript Node Credit Rates Bonds Agile Buy Side Asset Manager Investment Management Finance Front Office Trading Financial Services UI Front End Front End EMS OMS Execution Order Management System Portfolio Banking Remote Consultant Contract Consultancy) required by our trading client in London. You will join a small department of 5 teams who are modernising an execution and order management trading system. You will come in as an OpenFin Expert to sit across the five teams in a Principal Engineer/Architect role. The tech stack is OpenFin, React, TypeScript, Ag-Grid, PlayWright and Node on the Front End. The five team have 5-8 full-stack engineers in each team, including people with OpenFin expertise. You will be hired to bolster this expertise. The role can be 100% remote, however, if you are local, you could go into the office as you wish. There is ongoing work with the client. In December, this will renew for a full 12 months. Rate: £750 - 1000/day Duration: 6 - 12 months

Principal React Engineer (Software Engineer Programmer Developer Architect Principal ReactJS React-JS React.JS Playwright TypeScript Redux Saga Ag-Grid Fixed Income JavaScript Node Credit Rates Bonds Agile Buy Side Asset Manager Investment Management Finance Front Office Trading Financial Services UI Front End Front End EMS OMS Execution Order Management System Portfolio Banking Remote) required by our trading client in London. You MUST have the following: Strong experience as a Lead React Developer/Software Engineer/Programmer Advanced OpenFin Excellent JavaScript, TypeScript and React Experience building Front Office trading systems Agile The following is DESIRABLE, not essential: Ag-Grid Fixed Income Role: Principal React Engineer (Software Engineer Programmer Developer Architect Principal ReactJS React-JS React.JS Playwright TypeScript Redux Saga Ag-Grid Fixed Income JavaScript Node Credit Rates Bonds Agile Buy Side Asset Manager Investment Management Finance Front Office Trading Financial Services UI Front End Front End EMS OMS Execution Order Management System Portfolio Banking Remote Consultant Contract Consultancy) required by our trading client in London. You will join a small department of 5 teams who are modernising an execution and order management trading system. You will come in as an OpenFin Expert to sit across the five teams in a Principal Engineer/Architect role. The tech stack is OpenFin, React, TypeScript, Ag-Grid, PlayWright and Node on the Front End. The five team have 5-8 full-stack engineers in each team, including people with OpenFin expertise. You will be hired to bolster this expertise. The role can be 100% remote, however, if you are local, you could go into the office as you wish. There is ongoing work with the client. In December, this will renew for a full 12 months. Rate: £750 - 1000/day Duration: 6 - 12 months

You will be able to adapt to new engineering situations and be comfortable in abstracting detail in order to understand the simulation and missile's behaviour! Salary: Up to £55,000 depending on experience Dynamic (hybrid) working: 4 days per week on-site due to workload classification Security Clearance: British Citizen or a Dual UK national with British citizenship Restrictions and/or limitations relating to nationality and/or rights to work may apply. As a minimum and after offer stage, all successful candidates will need to undergo HMG Basic Personnel Security Standard checks (BPSS), which are managed by the MBDA Personnel Security Team. What we can offer you: Company bonus: Up to £2,500 (based on company performance and will vary year to year) Pension: maximum total (employer and employee) contribution of up to 14% Overtime: opportunity for paid overtime Flexi Leave: Up to 15 additional days Flexible working: We welcome applicants who are looking for flexible working arrangements Enhanced parental leave: offers up to 26 weeks for maternity, adoption and shared parental leave -enhancements are available for paternity leave, neonatal leave and fertility testing and treatments Facilities: Fantastic site facilities including subsidised meals, free car parking and much more The opportunity: We are looking for ambitious engineers with a growth mind-set to join our team. If you are the right person for us, you will seek a supportive environment, surrounded by passionate experts while being a part of a collaborative and driven team. The Hardware-in-the-Loop (HWIL) team conduct the most complete test of missiles other than a firing and are MBDA's Missile test track. We design complex, real-time simulations that surround real missile hardware to allow us to 'fire missiles indoors'. As a HWIL RF engineer, you will be responsible for designing and developing and maintaining new and existing RF equipment and working with multi-disciplinary teams to combine RF, electronics engineering and software development to produce new capabilities that enable the HWIL team to run new simulations. What we want from you: Broad engineering experience with deeper experience in some of the following skill areas: Radio Frequency design and testing System performance analysis Interface debugging and system integration Hardware/Software design requirements System design for real-time applications Familiarity with Linux operating system Familiarity with computer science (C++ an advantage) Integration of microcontrollers into RF hardware (e.g. Raspberry Pi) Our company: Peace is not a given, Freedom is not a given, Sovereignty is not a given MBDA is a leading defence organisation. We are proud of the role we play in supporting the Armed Forces who protect our nations. We partner with governments to work together towards a common goal, defending our freedom. We are proud of our employee-led networks, examples include: Gender Equality, Pride, Menopause Matters, Parents and Carers, Armed Forces, Ethnic Diversity, Neurodiversity, Disability and more We recognise that everyone is unique, and we encourage you to speak to us should you require any advice, support or adjustments throughout our recruitment process. Follow us on LinkedIn (MBDA), X Instagram (MBDA_UK) and Glassdoor or visit our MBDA Careers website for more information.

Staff Engineer / Principal Engineer / Lead Engineer - Full Stack Hybrid working : On-site one day per week (depending on your location) Summary: Lead Forensics is a leading UK based SAAS company with products in the B2B sales and marketing space. We're seeking a Staff level full stack Software Engineer / Software Developer to join our expanding teams that build our customer facing products. You'll be technically leading work; from requirements capture and initial design, through to full implementation, iterating quickly on our modern tech stack ( NodeJS microservices, Vue, Redis, SQL Server and SingleStore ) and deploying code daily to production (in AWS) following the DevSecOps methodology as we respond rapidly to customer requirements. Current and production grade TypeScript fluency (approx. 5+ years experience) is necessary for this particular position. Key Responsibilities : Working with stakeholders on initial solution design, scoping and system design. Spiking areas of uncertainty in designs and building POCs as required. Work with our Product Teams to help break down work into deliverable Epics and Stories. Turning user stories into code running in production as a high performing individual contributor lead developer and embedded architect in an Agentic AI environment. Ensuring the quality, maintainability and operability of code. Supporting the product that the team has built as it runs in production and resolving issues. Responsible for the design, architecture and implementation decisions for the product. What you will bring : Excellent interpersonal and collaboration skills, including competencies to work directly with customers. Experience developing with clean code, SOLID principals and design patterns. Experience across all areas of full stack development, ideally developing large scale SaaS platforms. Experience of working in a mature CI/CD environment, continuously deploying stories every day, following the DevSecOps methodology. A strong general aptitude for programming and problem solving. You'll need to pick up new tools and techniques quickly and use them to solve problems. Our ideal candidate will also be able to show: A forward-thinking approach to accelerating production quality software development using AI (professional or personal). Experience with automated testing and quality assurance. An understanding of how to build systems that perform well at scale. Enthusiasm for building secure systems and implementing security best practices. Enthusiasm for driving high standards in software development and working with like-minded people towards achieving ever higher levels of efficiency and performance. A technical/computer science degree or equivalent professional experience. What we offer in return : An entrepreneurial environment built on ownership, accountability, autonomy and trust Employment with a fast-growing UK SaaS company; with hybrid or remote working. Competitive salary and benefits. Be part of a fantastic company culture; we all display our Company DNA's, foster a "One Team" and 'Growth' mentality. Give back to the wider community with volunteer days, fundraisers and charity.

Staff Engineer / Principal Engineer / Lead Engineer - Full Stack UK Remote, moving to Hybrid : On-site one day per week (cadence depending on your location). Other locations / options available. Summary: Lead Forensics is a leading UK based SAAS company with products in the B2B sales and marketing space. We're seeking a Staff level full stack Software Engineer / Software Developer to join our expanding teams that build our customer facing products. You'll be technically leading work; from requirements capture and initial design, through to full implementation, iterating quickly on our modern tech stack ( NodeJS microservices, Vue, Redis, SQL Server and SingleStore ) and deploying code daily to production (in AWS) following the DevSecOps methodology as we respond rapidly to customer requirements. Current and production grade TypeScript fluency (approx. 5+ years experience) is necessary for this particular position. Key Responsibilities : Working with stakeholders on initial solution design, scoping and system design. Spiking areas of uncertainty in designs and building POCs as required. Work with our Product Teams to help break down work into deliverable Epics and Stories. Turning user stories into code running in production as a high performing individual contributor lead developer and embedded architect in an Agentic AI environment. Ensuring the quality, maintainability and operability of code. Supporting the product that the team has built as it runs in production and resolving issues. Responsible for the design, architecture and implementation decisions for the product. What you will bring : Excellent interpersonal and collaboration skills, including competencies to work directly with customers. Experience developing with clean code, SOLID principals and design patterns. Experience across all areas of full stack development, ideally developing large scale SaaS platforms. Experience of working in a mature CI/CD environment, continuously deploying stories every day, following the DevSecOps methodology. A strong general aptitude for programming and problem solving. You'll need to pick up new tools and techniques quickly and use them to solve problems. Our ideal candidate will also be able to show: A forward-thinking approach to accelerating production quality software development using AI (professional or personal). Experience with automated testing and quality assurance. An understanding of how to build systems that perform well at scale. Enthusiasm for building secure systems and implementing security best practices. Enthusiasm for driving high standards in software development and working with like-minded people towards achieving ever higher levels of efficiency and performance. A technical/computer science degree or equivalent professional experience. What we offer in return : An entrepreneurial environment built on ownership, accountability, autonomy and trust Employment with a fast-growing UK SaaS company; initially remote working. Competitive salary and benefits. Be part of a fantastic company culture; we all display our Company DNA's, foster a "One Team" and 'Growth' mentality. Give back to the wider community with volunteer days, fundraisers and charity.