Job Description
Principal Site Reliability Engineer
Location: Woking / London (Hybrid) Salary: £85,000 - £100,000
We're looking for a Principal SRE to lead the design and delivery of scalable, cloud-native platforms supporting critical UK services. You'll work in collaborative Cloud Pods, combining hands-on engineering with technical leadership.
What you'll do
* Build and operate reliable, scalable platforms using GitOps
* Drive automation, observability, and resilience (error budgets, SLOs)
* Work in Agile teams focused on customer outcomes
* Mentor engineers and champion SRE best practices
* Contribute to platform strategy and continuous improvement
* Take part in an on-call rota for live services
What you'll bring
* Proven experience in Site Reliability Engineering leadership
* Strong skills in Kubernetes / OpenShift
* Experience across multi-cloud or hybrid environments
* Knowledge of tools like Istio, Prometheus, Grafana, ArgoCD/FluxCD
* Experience with Infrastructure as Code (Helm/Kustomize)
* Scripting skills (Python / Bash)
Why join?
* Work on high-impact, critical systems
* Collaborative, supportive engineering culture
* Strong focus on learning, certifications, and progression
Details
* Hybrid: home, Woking/London offices, and client sites
* SC Clearance required (5 years UK residency)