Site Reliability Engineer Jobs

• London
• Remote
• £130,000 – £150,000 pa
• Senior

Designs and scales a unified observability platform using Prometheus, Grafana, Loki, OpenTelemetry and Tempo/Jaeger for satellite constellations, ground station networks and deep-space communications. Defines SLOs, SLIs and error budgets, automates infrastructure with Terraform and ArgoCD, and leads incident response across Kubernetes and multi-cloud environments.

Prometheus · Grafana · Loki +7

• Manchester
• Hybrid · 3 days in office
• £70,000 – £80,000 pa
• Senior

Owns the platform engineering practice, acting as technical authority for reliability, observability and engineering quality while reporting to the CTO. Defines standards and tooling, leads an observability rollout, improves Azure IaC and CI/CD pipelines, and coaches development teams rather than owning every deployment.

Microsoft Azure · Azure DevOps · Bicep +9

• London
• Mid-level

Hands-on role driving reliability, performance and operational excellence across hybrid cloud and on-prem environments. You will define SRE practices, deliver against SLIs, SLOs and error budgets, lead root-cause analysis, and embed automation, observability and infrastructure-as-code across Azure and on-prem, while ensuring alignment with ISO 27001 security and compliance standards.

Azure · Terraform · ARM +7

• London
• Permanent

Builds and operates critical Access and Identity services in a large-scale, high-availability cloud environment, with a strong focus on automation to reduce manual toil. Uses Linux and networking skills to troubleshoot, deploy and sustain distributed systems, leveraging AI tooling and metrics to drive operational efficiency. Also mentors junior engineers and consults with senior staff on root-cause analysis.

AWS

• London
• Hybrid
• Mid-level
• Permanent

Builds and operates large-scale, high-availability cryptography, access and identity services on AWS, with a strong focus on automation to reduce manual toil. Day-to-day work spans Linux troubleshooting, networking diagnostics, capacity metrics and AI tooling, while mentoring junior engineers and acting as a subject matter expert across multiple AWS services.

AWS

• London
• Senior

Hands-on reliability engineer role focused on business-critical production systems supporting portfolio construction and investment technology. Involves driving observability, incident response, CI/CD pipelines, and automation primarily in Python, across hybrid cloud and on-prem Kubernetes environments, while influencing reliability strategy.

Kubernetes · Terraform · Ansible +1

• Nottingham
• Hybrid · 2 days in office
• £65,000 – £75,000 pa
• Senior
• Permanent

Owns production Azure workloads, improving platform reliability, optimising cloud architecture and automating operational processes while driving SRE best practices. Works hands-on with Terraform, Bicep or ARM, Azure Monitor, Log Analytics, Application Insights, GitHub Actions and AKS/Kubernetes. Hybrid role in a financial services organisation, two days per week onsite.

Microsoft Azure · Terraform · Bicep +7

• London
• Remote
• Senior

Maintains and scales a DevTools platform running 25k TeamCity builds daily, 100 TB of Artifactory artifacts and a large GitLab monorepo. Splits time evenly between SRE and software engineering, modifying open- and closed-source tools, building plugins and improving fault tolerance. Also experiments with RAG and AI agents.

TeamCity · Artifactory · GitLab +2