Linux Infrastructure Engineer (SC Clearance)

At CGI, you will play a key role in designing and operating secure, high-performance Linux-based infrastructure that supports mission-critical systems across the Space, Defence and Intelligence sector. As a Linux Infrastructure Engineer, you will build resilient, scalable platforms that enable innovation and operational excellence. Working with advanced technologies and expert teams, you will take ownership of complex challenges, apply creative solutions, and grow your career within a collaborative and supportive environment. 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 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 will be based on site near Gloucester 5 days a week. Your future duties and responsibilities In this role, you will architect, deploy and maintain secure Linux-based infrastructure, ensuring high availability, performance and scalability across complex environments. You will take ownership of infrastructure automation, containerised platforms and system optimisation, supporting both project delivery and operational excellence. Working closely with multidisciplinary teams, you will contribute to building resilient systems, improving deployment pipelines and driving continuous improvement. You will bring innovative thinking to infrastructure challenges while being supported by a collaborative and expert-led environment.

• Design & Deploy Linux-based infrastructure across enterprise environments
• Automate & Optimise systems using configuration management and scripting
• Orchestrate & Manage containerised platforms using Kubernetes
• Build & Maintain infrastructure-as-code and CI/CD pipelines
• Manage & Enhance storage solutions, backup and disaster recovery processes
• Monitor & Improve system performance, reliability and scalability
• Collaborate & Deliver with cross-functional teams to support mission-critical systems
  You should have strong experience managing Linux infrastructure within enterprise or secure environments, with a focus on automation, scalability and reliability. A solid understanding of containerisation and infrastructure-as-code practices is essential.
• You should have strong experience with Linux distributions such as Red Hat or Rocky Linux
• Proficiency in scripting and automation (e.g. Python, Bash, Ansible)
• Experience with containerisation and orchestration tools such as Kubernetes
• Knowledge of infrastructure-as-code and CI/CD practices
• Experience managing storage solutions and backup/recovery processes
• Strong troubleshooting and system optimisation skills
• Familiarity with data tools such as NiFi (desirable)
• Experience working in secure or regulated environments (advantageous)
  Life at CGI is rooted in ownership, teamwork, respect and belonging. Here, you'll reach your full potential because...

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