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.

CGI’s Space, Defence, and Intelligence business unit is dedicated to delivering cutting-edge technical solutions that address the most complex challenges faced by government agencies. Our mission-critical systems are custom-built to ensure security, reliability, and innovation, helping our clients protect the nation and its people. We are currently seeking Infrastructure Engineers to join our Secure Innovation & Advisory team, working collaboratively with clients to deliver impactful solutions.

This role offers an exciting opportunity to engage with groundbreaking technologies in a dynamic and rewarding environment. At CGI, we are deeply committed to the growth and development of our team members, offering extensive learning opportunities to help you stay at the forefront of an ever-evolving technology landscape. Our culture values innovation, collaboration, and ownership, making it an ideal environment for self-motivated individuals to thrive.

Our roles are only available if you hold a UK Security Clearance and are a sole UK National due to the secure nature of the project. You will either hold a higher level clearance or be willing to obtain it. 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

• Design, implement, and manage complex network architectures, including LAN, WAN, and cloud-based systems. • Monitor network performance, troubleshoot issues, and optimize network resources to ensure high availability and security. • Configure and maintain firewalls, routers, switches, and VPNs in compliance with security policies. • Oversee the installation, configuration, and maintenance of storage solutions, including SAN, NAS, and backup systems. • Ensure data integrity, availability, and security through regular backups, disaster recovery planning, and storage optimization. • Implement and manage storage policies, quotas, and replication to ensure efficient and secure data management. • Install, configure, and maintain Windows Server environments, including Active Directory, Group Policy, DNS, DHCP, and other core services. • Perform regular patch management, software updates, and system upgrades to maintain security and performance standards. • Manage user accounts, permissions, and access controls in accordance with organizational security policies.

Required qualifications to be successful in this role

• Proven experience in one or more areas of infrastructure management: network, storage, or Windows Server. • Ability to think outside the box and solve complex technical challenges.

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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.