Site Reliability Engineer – Farnborough – Permanent Overview Fuel Recruitment is supporting a leading organisation within the National Security and Defence sector that is looking for an experienced Site Reliability Engineer to join their growing team. This role sits at the heart of modern platform engineering, working with the latest technologies and driving secure-by-design practices. You’ll be involved in shaping and delivering innovative infrastructure solutions, from proof‑of‑concept through to production. It’s an excellent opportunity for someone passionate about automation, DevOps principles, and continuous improvement. Key Responsibilities \* Deliver, upgrade and maintain core service and project platforms, systems and automation. \* Develop and manage core monitoring and management platforms, ensuring high‑quality observability. \* Collaborate with engineers, developers, operations and QA to design, harden and optimise platforms. \* Create architecture and solution designs for new services, delivering PoCs through to production. \* Conduct security risk and vulnerability assessments, ensuring secure deployment. \* Design, build and maintain automation tooling to improve performance and reliability. \* Diagnose and resolve performance issues across Linux, Docker, Terraform, Kubernetes and related technologies. \* Produce and maintain high‑quality documentation and support mentoring within the team. Key Skills / Experience Essential \* Strong experience with Linux and Windows operating systems. \* Excellent Linux administration skills (e.g. Ubuntu). \* Proficiency in scripting languages (Bash, PHP, Python, PowerShell). \* Hands‑on experience with automation/DevOps tools such as Ansible, Terraform, CI/CD pipelines and Git. \* Experience with Azure or similar cloud technologies. \* Understanding of Desired State Configuration (DSC). \* Strong problem‑solving and analytical skills. \* Willingness to learn, research new technologies and work in a fast‑paced environment. Desirable \* Experience with Infrastructure as Code (IaC) best practices. \* Awareness of security considerations and best practice. \* Knowledge of configuration as code tools (DSC, Ansible). \* Experience with ARM Templates, Terraform and continuous inspection tooling. \* Familiarity with Docker/Podman and container orchestration (Kubernetes, Swarm). \* Experience with GitLab or similar configuration management tooling. \* Knowledge of Jira or similar project/issue management tools. \* Experience with Azure and Azure Stack Hub environments. \* Monitoring and alerting tools experience (Nagios, Splunk). \* Strong documentation and communication skills (Confluence). \* Experience delivering and managing large-scale systems. \* Understanding of Agile and DevOps principles. Security Clearance Due to the nature of the work, candidates must be UK sole nationals and eligible to obtain UK Security Clearance