Salary: £38,000 - 68,000 per year Requirements: We require an experienced Site Reliability Engineer. We require active DV Clearance. We are looking for someone with experience supporting secure, high-profile programmes across National Security and Defence. We expect strong skills in building and maintaining resilient, scalable infrastructure. We value experience improving system reliability and performance. Responsibilities: We will expect you to support secure, high-profile programmes across National Security and Defence. We will rely on you to build and maintain resilient, scalable infrastructure. We will need you to improve system reliability and performance. We will expect you to help ensure our systems remain stable and secure. Technologies: Support Security More: We are hiring a Site Reliability Engineer for a Bristol / hybrid position on a permanent or contract basis. We support secure, high-profile programmes across National Security and Defence, and this role is focused on strengthening our infrastructure and improving the reliability and performance of our systems. Active DV Clearance is required for this opportunity. last updated 24 week of 2026