SC/DV Cleared Networking Architect (Contract - Inside IR35) Locations: London & Milton Keynes (onsite expectations TBC) Contract: 6 months (with option to extend) Clearance: Active SC or DV clearance required Start: ASAP IR35 Status: Inside IR35 Overview We are seeking experienced SC or DV Cleared Networking Architects to support a major programme involving optimisation and brownfield transformation of complex, secure network environments. This role requires a combination of high-level architectural design and hands-on technical implementation, working closely with technical teams and stakeholders across the organisation. The ideal candidates will possess deep expertise in Cisco and Zscaler technologies (with further technical stack details to be confirmed), as well as proven experience operating in highly secure or restricted environments. We are recruiting a mix of senior and mid-level architects across both London and Milton Keynes locations. Key Responsibilities Architecture & Design Develop high-level and low-level network designs for existing brownfield environments and optimisation projects. Translate business and programme requirements into robust, scalable network architectures. Conduct impact assessments, technical reviews, and architectural governance activities. Ensure designs follow best practice for security, resilience, and operational efficiency. Implementation & Hands-On Delivery Support or lead technical implementation, migrations, upgrades, and optimisation efforts. Troubleshoot complex networking issues within secure environments. Validate designs through PoCs, testing, and phased deployment approaches. Technical Leadership Work with internal stakeholders, vendors, and engineering teams to deliver end-to-end solutions. Provide technical assurance and guidance to junior and mid-level architects. Contribute to the development of design patterns, standards, and configuration baselines. Essential Skills & Experience Core Networking Expertise Strong experience with Cisco enterprise and security technologies. Hands-on experience with Zscaler (ZIA/ZPA) and associated integration patterns. Deep technical understanding of: Routing & Switching (BGP, OSPF, EIGRP) MPLS & VPN architectures SD-WAN (Cisco preferred; others beneficial) Firewall technologies Zero-Trust and segmentation concepts Secure Environment Experience Active SC or DV clearance (mandatory). Experience working in restricted or sensitive operational environments.
Dec 11, 2025
Contractor
SC/DV Cleared Networking Architect (Contract - Inside IR35) Locations: London & Milton Keynes (onsite expectations TBC) Contract: 6 months (with option to extend) Clearance: Active SC or DV clearance required Start: ASAP IR35 Status: Inside IR35 Overview We are seeking experienced SC or DV Cleared Networking Architects to support a major programme involving optimisation and brownfield transformation of complex, secure network environments. This role requires a combination of high-level architectural design and hands-on technical implementation, working closely with technical teams and stakeholders across the organisation. The ideal candidates will possess deep expertise in Cisco and Zscaler technologies (with further technical stack details to be confirmed), as well as proven experience operating in highly secure or restricted environments. We are recruiting a mix of senior and mid-level architects across both London and Milton Keynes locations. Key Responsibilities Architecture & Design Develop high-level and low-level network designs for existing brownfield environments and optimisation projects. Translate business and programme requirements into robust, scalable network architectures. Conduct impact assessments, technical reviews, and architectural governance activities. Ensure designs follow best practice for security, resilience, and operational efficiency. Implementation & Hands-On Delivery Support or lead technical implementation, migrations, upgrades, and optimisation efforts. Troubleshoot complex networking issues within secure environments. Validate designs through PoCs, testing, and phased deployment approaches. Technical Leadership Work with internal stakeholders, vendors, and engineering teams to deliver end-to-end solutions. Provide technical assurance and guidance to junior and mid-level architects. Contribute to the development of design patterns, standards, and configuration baselines. Essential Skills & Experience Core Networking Expertise Strong experience with Cisco enterprise and security technologies. Hands-on experience with Zscaler (ZIA/ZPA) and associated integration patterns. Deep technical understanding of: Routing & Switching (BGP, OSPF, EIGRP) MPLS & VPN architectures SD-WAN (Cisco preferred; others beneficial) Firewall technologies Zero-Trust and segmentation concepts Secure Environment Experience Active SC or DV clearance (mandatory). Experience working in restricted or sensitive operational environments.
Networking Architect (Contract - Inside IR35) Locations: London & Milton Keynes (onsite expectations TBC) Contract: 6 months Start: ASAP IR35 Status: Inside IR35 Overview We are seeking experienced SC or DV Cleared Networking Architects to support a major programme involving optimisation and brownfield transformation of complex, secure network environments. This role requires a combination of high-level architectural design and hands-on technical implementation, working closely with technical teams and stakeholders across the organisation. The ideal candidates will possess deep expertise in Cisco and Zscaler technologies (with further technical stack details to be confirmed), as well as proven experience operating in highly secure or restricted environments. We are recruiting a mix of senior and mid-level architects across both London and Milton Keynes locations. Key Responsibilities Architecture & Design Develop high-level and low-level network designs for existing brownfield environments and optimisation projects. Translate business and programme requirements into robust, scalable network architectures. Conduct impact assessments, technical reviews, and architectural governance activities. Ensure designs follow best practice for security, resilience, and operational efficiency. Implementation & Hands-On Delivery Support or lead technical implementation, migrations, upgrades, and optimisation efforts. Troubleshoot complex networking issues within secure environments. Validate designs through PoCs, testing, and phased deployment approaches. Technical Leadership Work with internal stakeholders, vendors, and engineering teams to deliver end-to-end solutions. Provide technical assurance and guidance to junior and mid-level architects. Contribute to the development of design patterns, standards, and configuration baselines. Essential Skills & Experience Core Networking Expertise Strong experience with Cisco enterprise and security technologies. Hands-on experience with Zscaler (ZIA/ZPA) and associated integration patterns. Deep technical understanding of: Routing & Switching (BGP, OSPF, EIGRP) MPLS & VPN architectures SD-WAN (Cisco preferred; others beneficial) Firewall technologies Zero-Trust and segmentation concepts
Dec 11, 2025
Contractor
Networking Architect (Contract - Inside IR35) Locations: London & Milton Keynes (onsite expectations TBC) Contract: 6 months Start: ASAP IR35 Status: Inside IR35 Overview We are seeking experienced SC or DV Cleared Networking Architects to support a major programme involving optimisation and brownfield transformation of complex, secure network environments. This role requires a combination of high-level architectural design and hands-on technical implementation, working closely with technical teams and stakeholders across the organisation. The ideal candidates will possess deep expertise in Cisco and Zscaler technologies (with further technical stack details to be confirmed), as well as proven experience operating in highly secure or restricted environments. We are recruiting a mix of senior and mid-level architects across both London and Milton Keynes locations. Key Responsibilities Architecture & Design Develop high-level and low-level network designs for existing brownfield environments and optimisation projects. Translate business and programme requirements into robust, scalable network architectures. Conduct impact assessments, technical reviews, and architectural governance activities. Ensure designs follow best practice for security, resilience, and operational efficiency. Implementation & Hands-On Delivery Support or lead technical implementation, migrations, upgrades, and optimisation efforts. Troubleshoot complex networking issues within secure environments. Validate designs through PoCs, testing, and phased deployment approaches. Technical Leadership Work with internal stakeholders, vendors, and engineering teams to deliver end-to-end solutions. Provide technical assurance and guidance to junior and mid-level architects. Contribute to the development of design patterns, standards, and configuration baselines. Essential Skills & Experience Core Networking Expertise Strong experience with Cisco enterprise and security technologies. Hands-on experience with Zscaler (ZIA/ZPA) and associated integration patterns. Deep technical understanding of: Routing & Switching (BGP, OSPF, EIGRP) MPLS & VPN architectures SD-WAN (Cisco preferred; others beneficial) Firewall technologies Zero-Trust and segmentation concepts
Job Title: Python Engineer Location: Fully Remote (England) Clearance: Active SC Clearance Required Duration : 12 month contract - will extend Project: Major Defence Programme Secure Data Exchange Platform Core Mission Build and harden Python based services and data processing components that underpin a secure, scalable, distributed defence platform. Transform prototype code into operational, production ready modules. This is a hands on engineering role requiring strong Python skills, experience in secure or mission critical environments, and the ability to contribute across backend services, data pipelines, integration layers, and automation. Key Responsibilities • Develop, refine, and maintain Python microservices and backend components supporting secure data exchange. • Translate prototype logic and PoC implementations into scalable, production-grade code. • Implement APIs, integration layers, and event-driven services aligned to agreed architecture patterns. • Apply secure coding practices, identity controls, and data protection mechanisms. • Contribute to CI/CD pipelines, automated testing, and integration with Infrastructure-as-Code workflows. • Improve performance, fault tolerance, and observability across distributed services. • Collaborate closely with solution architects, security architects, and engineering teams. • Support validation, hardening, and iterative refinement of backend services. • Produce technical documentation, service diagrams, and implementation notes aligned with programme standards. Required Experience • Strong hands on experience with Python • Solid understanding of APIs, microservices, event-driven architectures, and messaging patterns. • Practical experience with secure development practices, authentication/authorisation, and zero-trust principles. • Experience working with containerised workloads (Docker; advantage if familiar with Kubernetes). • Proficiency with CI/CD tooling, automated tests, and modern software engineering practices. • Ability to work effectively within a senior, cross-functional architecture and engineering team. • Strong knowledge of networking fundamentals, data structures, and secure service design. • Comfortable working in a highly regulated, security-focused environment. Apply now for immediate consideration
Dec 10, 2025
Contractor
Job Title: Python Engineer Location: Fully Remote (England) Clearance: Active SC Clearance Required Duration : 12 month contract - will extend Project: Major Defence Programme Secure Data Exchange Platform Core Mission Build and harden Python based services and data processing components that underpin a secure, scalable, distributed defence platform. Transform prototype code into operational, production ready modules. This is a hands on engineering role requiring strong Python skills, experience in secure or mission critical environments, and the ability to contribute across backend services, data pipelines, integration layers, and automation. Key Responsibilities • Develop, refine, and maintain Python microservices and backend components supporting secure data exchange. • Translate prototype logic and PoC implementations into scalable, production-grade code. • Implement APIs, integration layers, and event-driven services aligned to agreed architecture patterns. • Apply secure coding practices, identity controls, and data protection mechanisms. • Contribute to CI/CD pipelines, automated testing, and integration with Infrastructure-as-Code workflows. • Improve performance, fault tolerance, and observability across distributed services. • Collaborate closely with solution architects, security architects, and engineering teams. • Support validation, hardening, and iterative refinement of backend services. • Produce technical documentation, service diagrams, and implementation notes aligned with programme standards. Required Experience • Strong hands on experience with Python • Solid understanding of APIs, microservices, event-driven architectures, and messaging patterns. • Practical experience with secure development practices, authentication/authorisation, and zero-trust principles. • Experience working with containerised workloads (Docker; advantage if familiar with Kubernetes). • Proficiency with CI/CD tooling, automated tests, and modern software engineering practices. • Ability to work effectively within a senior, cross-functional architecture and engineering team. • Strong knowledge of networking fundamentals, data structures, and secure service design. • Comfortable working in a highly regulated, security-focused environment. Apply now for immediate consideration
Job Title: SC Cleared Senior Network Engineer Location: Portsmouth Duration: 6 months with possible extension Rate: Market rates via an approved umbrella company The Role As a Senior Network Engineer, you will join our team supporting our client and their customers. This role is ideal for someone with hands-on IT and networking experience who enjoys solving problems, learning new skills, and contributing to critical projects. You'll work in an ITIL-based environment supporting multiple projects across different layers, delivering technical outputs that ensure secure, efficient transfer of data and the delivery of key communications and network systems. The role will be delivering network solutions that provide critical services for our customers. Day-to-day, you'll be investigating and resolving technical issues, supporting multiple projects across different layers of the network, and ensuring the secure transfer of data for our client and their clients customers. You'll work closely with project managers and technical leads to deliver quality outputs, assist with system implementations. You'll also contribute to continuous improvement initiatives, develop processes, and support the team by sharing knowledge, providing practical solutions, and help maintain high standards. Your responsibilities will include: Investigate and resolve technical issues across existing networks and systems Support multiple projects and ensure timely delivery of technical outputs Implement and configure new systems and solutions Essential experience of the Senior Network Engineer: Hands-on experience in networking, IT and communications. Experience 5+ years as a networking engineer in an IT department Support an existing Juniper SRX based network with cyber patches/issue investigation as and when needed (using VPNs, VLANS, within ESXi server environment). Certificate based VPN experience would be advantageous. Understanding of Microsoft, Windows, Linux, Juniper or coding environments would be advantageous Ability to investigate problems and provide solutions to complex network issues Professionalism and experience in a structured IT environment Essential qualifications for the Senior Network Engineer: Degree in engineering or equivalent IT-related experience Hands-on experience working on IT architecture or network systems If this is the role for you please submit your CV at your earliest convenience
Dec 06, 2025
Contractor
Job Title: SC Cleared Senior Network Engineer Location: Portsmouth Duration: 6 months with possible extension Rate: Market rates via an approved umbrella company The Role As a Senior Network Engineer, you will join our team supporting our client and their customers. This role is ideal for someone with hands-on IT and networking experience who enjoys solving problems, learning new skills, and contributing to critical projects. You'll work in an ITIL-based environment supporting multiple projects across different layers, delivering technical outputs that ensure secure, efficient transfer of data and the delivery of key communications and network systems. The role will be delivering network solutions that provide critical services for our customers. Day-to-day, you'll be investigating and resolving technical issues, supporting multiple projects across different layers of the network, and ensuring the secure transfer of data for our client and their clients customers. You'll work closely with project managers and technical leads to deliver quality outputs, assist with system implementations. You'll also contribute to continuous improvement initiatives, develop processes, and support the team by sharing knowledge, providing practical solutions, and help maintain high standards. Your responsibilities will include: Investigate and resolve technical issues across existing networks and systems Support multiple projects and ensure timely delivery of technical outputs Implement and configure new systems and solutions Essential experience of the Senior Network Engineer: Hands-on experience in networking, IT and communications. Experience 5+ years as a networking engineer in an IT department Support an existing Juniper SRX based network with cyber patches/issue investigation as and when needed (using VPNs, VLANS, within ESXi server environment). Certificate based VPN experience would be advantageous. Understanding of Microsoft, Windows, Linux, Juniper or coding environments would be advantageous Ability to investigate problems and provide solutions to complex network issues Professionalism and experience in a structured IT environment Essential qualifications for the Senior Network Engineer: Degree in engineering or equivalent IT-related experience Hands-on experience working on IT architecture or network systems If this is the role for you please submit your CV at your earliest convenience
Network Architect Must have an Active DV Clearance A new opportunity has arisen for a Network Architect to join a secure Defence and National Security programme. You will design and deliver medium to large scale network solutions while supporting multiple work streams and engaging with technical and project stakeholders across a high profile environment. About the Role - Network Architect As a Network Architect , you will work closely with Programme and Project Managers to produce high quality network designs across programme, live service, and change activities. You will contribute to HLD and LLD documentation for key technologies including Cisco FMC, SSM, FTD, Gigamon HC1 and GigaVUE FM, Juniper LAN and WAN, Endace, NTP, data centre firewalls, and LAN services. The role involves supporting engineering teams, ensuring solutions meet requirements, pass governance, and align with architectural direction. You will provide design input for customer reporting and collaborate with senior technical leadership to maintain architectural consistency. What We're Looking For - Network Architect Strong experience designing secure enterprise networks using Cisco , Juniper , and Gigamon technologies. Knowledge of routing protocols , VRFs, VPNs, QoS, security zones, high availability, and IP addressing design. Skilled in troubleshooting and resolving defects across multi vendor technologies. Experience of overseas infrastructure delivery is essential. Understanding of requirements management and lifecycle processes. Excellent communication skills with the ability to share knowledge, take ownership, and support delivery teams. Shape the delivery of secure and resilient networks as a Network Architect . To apply, please send your CV by pressing the apply button.
Dec 06, 2025
Contractor
Network Architect Must have an Active DV Clearance A new opportunity has arisen for a Network Architect to join a secure Defence and National Security programme. You will design and deliver medium to large scale network solutions while supporting multiple work streams and engaging with technical and project stakeholders across a high profile environment. About the Role - Network Architect As a Network Architect , you will work closely with Programme and Project Managers to produce high quality network designs across programme, live service, and change activities. You will contribute to HLD and LLD documentation for key technologies including Cisco FMC, SSM, FTD, Gigamon HC1 and GigaVUE FM, Juniper LAN and WAN, Endace, NTP, data centre firewalls, and LAN services. The role involves supporting engineering teams, ensuring solutions meet requirements, pass governance, and align with architectural direction. You will provide design input for customer reporting and collaborate with senior technical leadership to maintain architectural consistency. What We're Looking For - Network Architect Strong experience designing secure enterprise networks using Cisco , Juniper , and Gigamon technologies. Knowledge of routing protocols , VRFs, VPNs, QoS, security zones, high availability, and IP addressing design. Skilled in troubleshooting and resolving defects across multi vendor technologies. Experience of overseas infrastructure delivery is essential. Understanding of requirements management and lifecycle processes. Excellent communication skills with the ability to share knowledge, take ownership, and support delivery teams. Shape the delivery of secure and resilient networks as a Network Architect . To apply, please send your CV by pressing the apply button.
