Site Reliability Engineer

JAM Recruitment Ltd; City Of London; On-site; GBP 100,000 - 125,000; Full time

Job summary

A global defence organisation is seeking a Site Reliability Engineer in London. This role involves ensuring the performance and availability of mission-critical systems while driving automation. Applicants must hold UKIC DV Clearance. The position offers a competitive daily rate and a chance to work on impactful projects.

Benefits

Ongoing training and professional development

Work on meaningful problems

Support national security

Qualifications

• Must hold UKIC DV Clearance.
• Experience in software development preferred.
• Strong problem-solving skills and curiosity.

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.

Skills

Software development in web technologies or OOP (e.g., Python, Java)

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

Job description

UKIC DV Cleared Site Reliability / DevOp Engineer

London - 5 Days Onsite

Up to £550 per day (Umbrella, Inside IR35)

12-Month Contract

Must hold UKIC 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.

About the Role

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.

Key Responsibilities

• 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.

Ideal Skills & Experience

• We\'re more interested in your curiosity, enthusiasm, and problem-solving ability than ticking every box. However, experience in any of the following areas would be advantageous:
• 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

Security Requirements

UKIC DV clearance holder only

Why Apply?

• 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

Job Info

Job Title: Site Reliability Engineer

Company: JAM Recruitment Ltd

Location: London

Posted: Sep 25th 2025

Closes: Oct 26th 2025

Sector: Military, Emergency & Government

Contract: Contract

Hours: Full Time