Location
London, primarily based on a secure client site with attendance required five days per week. Occasional flexibility may be available subject to business needs and security constraints.

Hours
Full Time, on-site presence required due to the sensitive nature of the work and systems involved.

Salary
Competitive salary with excellent benefits including pension, private healthcare, and a share scheme (3.5% + 3.5% matching).

About the Role
CGI's Space, Defence and Intelligence business unit delivers innovative technical solutions for government agencies, focusing on mission-critical systems that help keep us safe and secure. We are seeking experienced Infrastructure Engineers to join a fast-moving DevSecOps team working on hybrid on-premises and cloud projects. You will be involved in designing, building, deploying, testing, and supporting infrastructure across on-prem and cloud environments using technologies such as Kubernetes, Docker, Terraform, Ansible, CloudFormation, and AWS. The role includes working with VPNs, firewalls, VMs, multi-factor authentication, Active Directory, monitoring tools, network performance, resilience, and security design, as well as integration scripting and application configuration.
CGI is committed to inclusivity and diversity, supporting Armed Forces personnel and holding a Gold Award for the Armed Forces Corporate Covenant. We foster a culture of innovation, collaboration, and ownership, providing excellent learning and development opportunities to keep your skills current in an evolving technology landscape. This role requires a high level of UK Security Clearance or eligibility to obtain it, including British nationality and residency requirements.
Join us and become part of a supportive, expert community where you can develop your career and contribute to meaningful, impactful projects.

Experience
- Ideally 3 years of experience in infrastructure engineering including design, build, deployment, testing, and support
- Experience with on-premises and cloud infrastructure deployments
- Kubernetes architecture and platform engineering including pods, services, deployments, networking, and software-defined networking
- Containerisation and orchestration experience with Docker, Kubernetes, Docker Swarm, or Apache Mesos
- Scripting skills in Python or Shell
- Infrastructure as Code using Terraform, Ansible, or CloudFormation
- Cloud compute experience primarily with AWS, also GCP or Azure
- Familiarity with GitOps tooling such as Argo CD
- Infrastructure security, compliance, and governance knowledge
- Experience with CNCF ecosystem and building platforms on Kubernetes
- Knowledge of Service Mesh technologies such as Istio or Linkerd
- Experience with monitoring tools like Prometheus, Grafana, and ELK
- Strong problem-solving skills to troubleshoot and resolve complex infrastructure issues
- Experience working with agile development methodologies and tools such as Git
- Strong communication and collaboration skills, able to work across diverse stakeholders and multiple sites

About you
You are a highly motivated self-starter who thrives in a culture of innovation, collaboration, and ownership. You have the ability to learn quickly and contribute across the technology stack. You are comfortable working in a secure, fast-paced environment and have a commitment to continuous professional development.

Qualifications
- Candidates must either hold or be eligible to obtain a high level of UK Security Clearance (Sole British nationals, UK resident for past 10 years, no more than 28 consecutive days outside the UK in last 5 years)
- While full expertise across all listed technologies is not expected, a strong foundation and willingness to learn are essential.