Senior Site Reliability Engineer

Salary: £43,000 - 83,000 per year

Requirements:

• We need you to hold an active UK Government Security Clearance, or be willing to be sponsored for it.
• We are looking for experience maintaining the availability of critical services using monitoring and alerting solutions.
• We need an understanding of Infrastructure as Code, CI/CD pipelines, and associated automation frameworks.
• We are looking for demonstrable knowledge of AWS Console/CLI, Prometheus, and Grafana.
• We need experience with privileged access management processes and technologies.
• We are looking for a good understanding of container orchestration technologies and observability services for Docker and Kubernetes.
• We need the ability to troubleshoot and debug issues across cloud environments.

Responsibilities:

• We will have you initially aligned to a Defence-related project, where you will lead a team helping to relocate data to a new cloud platform.
• You will work in a hybrid setup, with on-site presence in Central London around 2 days per month.
• You will split your time roughly 50% operations-focused and 50% automation-focused.
• You will improve services using a metrics-driven approach.
• You will work within an agile delivery team.
• You will be responsible for delivering effective IT operational processes across a key programme in the defence sector.
• You will help set up systems builds and dashboards.
• You will contribute to a programme with real purpose.

Technologies:

• AWS
• CI/CD
• Cloud
• Docker
• Grafana
• Kubernetes
• Prometheus
• Security
• DevOps
• LESS

More:

We are a global consultancy offering a permanent Senior Site Reliability Engineer opportunity within our Defence-sector work. This is a hybrid role based in London, with the flexibility to work from anywhere across the UK and attend site in Central London around two days per month. We offer significant funding for training and development, valuable training and certifications, great career progression, global opportunities, platinum partnerships with major technology providers, and access to a wide variety of end-client projects. Our hiring process is typically completed in two weeks and includes two interview stages.

last updated 36 week of 2026