Infrastructure Engineer

Job description

CGI UK Careers – Your mission found here

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Position Description:

At CGI, you’ll play a key role in strengthening the digital backbone of mission-critical defence programmes. As an Infrastructure Support Engineer, you will help ensure the reliability, security, and performance of the platforms that keep our clients’ operations moving. You’ll work with cutting-edge technologies, apply your expertise to solve complex challenges, and contribute to solutions that make a real impact. Here, you’ll be trusted to take ownership, supported by a community of experts, and encouraged to explore new ways of delivering resilient, high-value infrastructure for the future.

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.

Your future duties and responsibilities:

In this role, you will deliver hands-on support for critical infrastructure used across a major defence programme, ensuring systems remain stable, secure, and resilient. You will work closely with senior engineers, contributing to improvements, resolving incidents, and shaping the evolution of the platform. You’ll be empowered to take ownership of problems, apply creative thinking to technical challenges, and work within a supportive team to deliver high-quality outcomes.

You will maintain core infrastructure technologies, troubleshoot complex issues, and support an on-call rota to ensure business-critical services are available around the clock. Your work will directly contribute to platform reliability, security assurance, and operational success.

Key responsibilities:

Support & Troubleshoot: Provide technical support across VMware Cloud Foundation, Tanzu, VxRail, Data Domain, and key management systems.

Secure & Manage: Support privileged access and identity systems, including BeyondTrust and KeyCloak.

Administer & Maintain: Manage Windows Server environments, Hyper-V, and routine system upkeep.

Monitor & Improve: Track performance, contribute to continuity planning, and enhance infrastructure resilience.

Collaborate & Document: Work with senior engineers and keep documentation current and comprehensive.

Respond & Resolve: Participate in an on-call rota to address critical incidents effectively.

Required qualifications to be successful in this role:

To succeed, you should bring hands-on experience in infrastructure or support engineering, ideally within a defence environment. You’ll need a solid foundation across core infrastructure technologies, strong communication skills, and a willingness to develop your expertise further through training and certification.

Essential qualifications:

Experience working in Defence environments.

Proven background in infrastructure or support engineering.

Knowledge of VMware, Microsoft, or security technologies (certifications or willingness to work toward them).

Familiarity with hyper-converged infrastructure.

Strong teamwork, communication, and problem-solving abilities.

Desired:

Awareness of cross-domain tools (e.g., Tiger Traps, Garrison, OpsWat, NiFi).

Exposure to DevOps technologies (GitLab, Harbor, FluxCD, Kubernetes).

Familiarity with Elastic for monitoring and analytics.

Skills:

·  Defense
·  Defense
·  Hyperconverged Infrastructure
·  Detail-oriented

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.