CGI UK Careers – Your mission found here By playing this video you consent to Google/YouTube processing your data and using cookies – Learn more. Position Description: The Space, Defence and Intelligence business unit in CGI is a true IT Systems Integrator. We work, build, and operate bespoke, technically complex, mission-critical systems which help our clients keep us all safe and secure. We bring innovation to our clients using proven and emerging technologies, agile delivery processes and our deep expertise across the breadth of space, defence, intelligence, aerospace and maritime, all underpinned by our end-to-end cyber capability. We work collaboratively with global technology companies, cutting edge SMEs and academia to deliver the optimal solution for each client. CGI was recognised in the Sunday Times Best Places to Work List 2025 and has been named one of the ‘World’s Best Employers’ by Forbes magazine. 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. CGI is seeking an Infrastructure Engineer to join an existing team, supporting a Windows Server environment. Working within a highly experienced team, the successful candidate will be able to contribute to the delivery and support of excellent quality system changes against customer requirements, and responding well to change. Please note, due to the highly secure nature of the project, this role is open only to UK Nationals who hold Developed Vetting (DV) Clearance and onsite attendance at the specified location(s), 5 days per week, will be required for secure system access. Any individual without security clearance is welcome to apply and will always be considered for this or wider opportunities in CGI, where appropriate. Your future duties and responsibilities: The Infrastructure Engineer will take responsibility appropriate to their seniority for the design and development of infrastructure changes whilst following a documentation-based approach to the system changes and updates. The ability to test their own and others' work thoroughly is essential. We are looking for an individual who is pragmatic and delivery focused, who can adapt as situations evolve, who enjoys new experiences and is always wanting to learn new things. • Work as part of the infrastructure team to deliver new capability to the customer while improving earlier iterations of the system, primarily managing existing system operations and on-site user management. • Implementation and testing of changes to live system • Configuration, testing, documentation and maintenance of Windows Server and Client Operating Systems on development systems as well as live client sites • Live site deployments of primary based core system, at client locations/premises • 2nd line support of live operational systems, supporting users on any issue arising as no remote connection permitted • Produce and update of documentation to reflect standard approach to tasks and processes. Ensuring that the services and the processes match the documentation. • Build and unit test assigned work packages and deployments • Support User Acceptance testing, system test and other assurance Required qualifications to be successful in this role: Essential Skills • Windows Server • HP DL380 Servers • VMWare • Active Directory – Management and Policy Creation • Windows 11 Desirable Skills • Previous experience with secure environments • Experience with modelling complex systems LI-FP1 Skills: Active Directory What you can expect from us: Together, as owners, let’s turn meaningful insights into action. Life at CGI is rooted in ownership, teamwork, respect and belonging. Here, you’ll reach your full potential because… You are invited to be an owner from day 1 as we work together to bring our Dream to life. That’s why we call ourselves CGI Partners rather than employees. We benefit from our collective success and actively shape our company’s strategy and direction. Your work creates value. You’ll develop innovative solutions and build relationships with teammates and clients while accessing global capabilities to scale your ideas, embrace new opportunities, and benefit from expansive industry and technology expertise. You’ll shape your career by joining a company built to grow and last. You’ll be supported by leaders who care about your health and well-being and provide you with opportunities to deepen your skills and broaden your horizons. Come join our team—one of the largest IT and business consulting services firms in the world.