Security jobs in United Kingdom
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Mechanical Design Engineer
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Northrop Grumman Corporation
Cyber Security Traineeship & Placement: No Experience Required
Career Change
Fire & Security Estimator — Design & AutoCAD Specialist
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Student-Focused Security & Liaison Officer
Cannock College
Fire & Security Service Engineer – Hampshire
Alecto Recruitment
Site Reliability Engineer
Job summary
A leading recruitment firm seeks a Site Reliability Engineer in London for a 12-month contract. The ideal candidate must hold live DV clearance and will work on minimizing manual effort, driving automation, and ensuring system performance and availability. This role allows for proactive engagement with development teams and focuses on enhancing critical application services. If you're passionate about reliability and automation in a national security context, apply now!
Benefits
Qualifications
- Must hold live and transferrable DV Clearance.
- Experience in automation and reliability engineering.
- Ability to work in a collaborative environment.
Responsibilities
- Support and maintain essential services behind critical applications.
- Participate in a 24/7 on‑call rota (1 week in 5).
- Proactively enhance system availability, performance, and resilience.
- Develop tools to automate repetitive tasks.
- Collaborate with development teams on best practices.
- Deploy and manage monitoring systems.
Skills
DV Cleared Site Reliability Engineer
London - 5 Days Onsite
Up to £550 per day (Umbrella, Inside IR35)
12-Month Contract
Must hold live and transferrable DV Clearance
Are you passionate about reliability, automation, and supporting mission‑critical systems? Join this global defence organisation as a Site Reliability Engineer (SRE) and help shape the future of one of the UK's most vital national security platforms.
You’ll be joining a growing SRE team at the heart of the customer’s mission, focused on ensuring performance, availability, and scalability—while driving continuous improvement and innovation.
As an SRE, you'll combine your operational expertise with software engineering skills to minimise manual effort and drive automation across complex systems. This role is perfect for someone who thrives on solving hard problems, automating the mundane, and building intelligent tools to enhance system reliability.
- Support and maintain essential services behind critical applications.
- Participate in a 24/7 on‑call rota (1 week in 5), with extra allowance and overtime.
- Proactively enhance system availability, performance, and resilience.
- Develop tools and solutions to automate repetitive tasks and reduce operational toil.
- Collaborate with development teams to embed best practices and SRE principles.
- Deploy and manage monitoring systems to provide intelligent observability.
- Engage with the wider DevOps/SRE community within the organisation.
- Software development in web technologies or OOP (e.g., Python, Java, etc.)
- Database tech: Oracle SQL, PostgreSQL, MongoDB
- Proficient with Linux/Windows command line (Bash, PowerShell)
- Monitoring: Grafana, Prometheus, ELK, Splunk
- Agile working and tooling (e.g., Jira, Confluence)
- Diagnosing and resolving complex system issues
- ITIL knowledge or exposure to IT service operations
- Containerisation: Docker, Kubernetes, OpenShift
- Awareness of modern tech trends and tooling
DV clearance holder only.
Join a forward‑thinking SRE team in an environment where your work directly supports UK national security.
- Help shape tooling, practices, and culture from the ground up.
- Work alongside brilliant minds on meaningful problems.
- Receive ongoing training and professional development.
If you're excited about automation, resilient systems, and the opportunity to work on a high‑impact project—this is your chance to make a difference.
* The salary benchmark is based on the target salaries of market leaders in their relevant sectors. It is intended to serve as a guide to help Premium Members assess open positions and to help in salary negotiations. The salary benchmark is not provided directly by the company, which could be significantly higher or lower.