Site Reliability Engineer (SRE) - Defence

Farnborough
1 month ago
Applications closed

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Senior Site Reliability Engineer

Site Reliability Engineer (SRE) - Defence / National Security - £75k - Farnborough - Hybrid

A permanent opportunity for an experienced Site Reliability Engineer who enjoys building secure, automated, and highly reliable platforms. This role sits within a defence and national security environment, working on modern infrastructure where automation, resilience, and secure-by-design principles are fundamental.

You'll work closely with platform engineers, infrastructure teams, and operational stakeholders to take requirements from early design and proof-of-concept through to production. The role blends hands-on engineering with technical design, offering real influence over tooling, standards, and DevOps ways of working. It suits someone curious, detail-oriented, and comfortable working in complex, regulated environments.

What you'll be doing

Designing, delivering, upgrading, and maintaining core platforms, services, and automations
Building and improving monitoring, alerting, and observability platforms
Designing secure infrastructure using automation-first approaches
Creating and productionising proofs of concept for new tools and technologies
Diagnosing and resolving performance, reliability, and availability issues
Supporting architecture, documentation, and non-functional requirements
Mentoring engineers and helping improve DevOps and SRE practicesEssential experience

Strong experience with Linux (Ubuntu) and Windows Server environments
Hands-on scripting skills (Bash, Python, PowerShell or similar)
Proven experience with automation and DevOps tooling (Ansible, Terraform, CI/CD, Git)
Experience working with Azure or similar cloud platforms
Solid understanding of infrastructure reliability, monitoring, and incident response
Strong problem-solving skills and ability to work across multiple priorities
Willingness to work in secure, regulated environments (SC eligibility required)Desirable experience

Infrastructure-as-Code lifecycle and best practices
Containerisation and orchestration (Docker, Kubernetes)
Configuration management and desired state tooling
Application and platform monitoring tools (Splunk, Nagios or similar)
Experience hardening systems and conducting security assessments
Understanding of Agile and DevOps principles in practiceA collaborative, inclusive culture with strong benefits including competitive pay, bonus, pension, private healthcare, generous leave, professional development, wellbeing perks, and modern on-site facilities

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