SRE Technical Lead

SRE Technical Lead

📍 Reading / Hybrid (UK-based - mix of home, office, and client site)
🔐 Must be eligible for SC Clearance

We are seeking an experienced SRE Technical Lead to act as the technical authority for Site Reliability Engineering across complex, large-scale platforms.

This is a senior, client-facing leadership role where you will be responsible for driving reliability, availability, and operational excellence across multi-team and multi-vendor environments.

You will combine hands-on engineering expertise with strategic leadership, ensuring SRE practices are embedded across the full service lifecycle-from design through to production operations.

As the SRE Technical Lead, you will:

Define and implement SRE strategy, standards, and best practices, including SLAs, SLOs, and error budgets
Embed reliability principles into platform and service design from the outset
Lead key SRE practices such as reliability reviews, operational readiness, and toil reduction
Drive automation across monitoring, incident response, and remediation
Act as the technical escalation point for major incidents and high-risk releases
Lead blameless post-incident reviews and ensure continuous improvement
Establish observability and capacity management practices using modern tooling
Identify and eliminate systemic reliability risks and operational inefficiencies
Collaborate with engineering, platform, security, and operations teams across multiple vendors
Provide coaching and mentorship to engineers, raising SRE capability across the organisation

Essential experience:

Deep expertise in Kubernetes and/or OpenShift
Experience working in multi-cloud or hybrid cloud environments
Strong understanding of SRE principles (SLOs, SLAs, error budgets, reliability engineering)
Hands-on experience with observability tooling (e.g., Prometheus, Grafana, OpenTelemetry, Loki, Tempo)
Strong knowledge of Infrastructure as Code and GitOps (e.g., Helm, Kustomize, ArgoCD, Tekton)
Experience with CI/CD pipelines and automation
Proven ability to operate as a technical leader in complex, multi-team environments