Infrastructure Engineers (DV Security Clearance)

Position Description

At CGI, we deliver the secure, mission-critical systems that power the UK’s most vital sectors, helping to safeguard national interests while driving innovation and transformation. As an Infrastructure Engineer, you will play a central role in designing, deploying, and supporting complex platforms that combine on-premises and cloud environments. This is an opportunity to apply your expertise in Kubernetes, automation, and cloud-native technologies to deliver solutions that are critical to the nation, while working in a culture that values creativity, ownership, and collaboration.

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 is available in Gloucester and London.

Your future duties and responsibilities

In this role, you will take responsibility for designing, building, testing, and supporting infrastructure across hybrid environments, combining on-premises and cloud platforms. You will contribute to creating secure, scalable, and automated solutions using containerisation, Infrastructure as Code, and cloud-native tooling.

You will collaborate with stakeholders across multiple sites, working as part of an agile team to troubleshoot complex issues, optimise performance, and introduce new capabilities. Your role will directly support critical national security systems, where reliability, compliance, and innovation are essential.

Key responsibilities include:

• Design & Deploy: Build and manage infrastructure solutions across on-premises and cloud platforms (AWS, Azure, GCP).
• Innovate & Automate: Implement Kubernetes-based platforms, containerisation, and Infrastructure as Code (Terraform, Ansible, CloudFormation).
• Secure & Govern: Apply infrastructure security, compliance, and governance best practices.
• Troubleshoot & Resolve: Analyse and solve complex infrastructure issues with a problem-solving mindset.
• Monitor & Optimise: Use monitoring and observability tools such as Prometheus, Grafana, and ELK.
• Collaborate & Deliver: Work across diverse stakeholders and agile teams to drive continuous improvement.

Required Qualifications To Be Successful In This Role You should have at least three years’ experience in infrastructure engineering, with a track record of delivering solutions across hybrid and cloud environments. Strong technical expertise combined with effective communication and collaboration skills will be key to your success.

You should have experience in:

• Designing, building, deploying, testing, and supporting infrastructure solutions
• Deployment across on-premises and cloud environments (AWS preferred, Azure/GCP desirable)
• Kubernetes architecture (pods, services, deployments, networking) and containerisation (Docker)
• Platform engineering and familiarity with CNCF ecosystem
• Infrastructure as Code using Terraform, Ansible, or CloudFormation
• GitOps tooling such as Argo CD
• Scripting (Python, Shell)
• Container orchestration tools (e.g., Docker Swarm, Apache Mesos)
• Service Mesh technologies (e.g., Istio, Linkerd)
• Monitoring and observability tools (Prometheus, Grafana, ELK)
• Applying infrastructure security, compliance, and governance practices
• Working within agile teams and using version control tools such as Git

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.