Wintel Engineer (Security Clearance)

At CGI, we're delivering secure, resilient infrastructure that supports some of the UK's most critical defence and intelligence programmes. As a Windows Infrastructure Engineer, you'll help build and maintain mission-critical Windows environments, contributing to innovative solutions that strengthen security and performance. You'll take ownership of technical challenges, collaborate with experienced engineers and help shape reliable infrastructure services. With opportunities to develop your expertise, contribute new ideas and progress your career, you'll make a meaningful impact within a supportive, forward-thinking team.



CGI was recognised in the Sunday Times Best Places to Work List 2025 and has been named a UK ‘Best Employer’ by the Financial Times. We offer a competitive salary, excellent pension, private healthcare, plus a share scheme (3.5% + 3.5% matching) which makes you a CGI Partner not just an employee. We are committed to inclusivity, building a genuinely diverse community of tech talent and inspiring everyone to pursue careers in our sector, including our Armed Forces, and are proud to hold a Gold Award in recognition of our support of the Armed Forces Corporate Covenant. Join us and you’ll be part of an open, friendly community of experts. We’ll train and support you in taking your career wherever you want it to go.



Due to the secure nature of the programme, you will need to hold UK Security Clearance or be eligible to go through this clearance. This position will be full time on site in Chippenham.

Profil recherché

You'll build, configure and support secure Windows infrastructure, working alongside technical teams to deliver reliable platform services. You'll contribute to infrastructure design, resolve technical challenges and support the transition of solutions into live service, with opportunities to develop your skills and influence improvements.



• Build & Configure: Deploy and maintain Windows Server infrastructure.



• Design & Document: Contribute to technical designs and produce Low-Level Designs (LLDs).



• Integrate & Deliver: Support wider infrastructure builds and networking dependencies.



• Secure & Optimise: Manage patching, system performance and infrastructure security.



• Support & Collaborate: Troubleshoot issues and support handover into live service.



• Engage On-Site: Travel to project locations when required.

Required qualifications to be successful in this role

You'll have hands-on Windows infrastructure experience, strong troubleshooting skills and the ability to work collaboratively within a secure technical environment.



Essential skills:



• Windows Server administration and infrastructure builds.



• Active Directory, DNS and PKI.



• Windows patch management.



• Working knowledge of VMware, ideally VMware Cloud Foundation (VCF).



• Infrastructure design documentation, including LLDs.



• Understanding of networking fundamentals.



Desirable skills:



• Agile or SAFe methodologies.



• Experience in secure or defence environments.



• Strong communication and collaboration skills.