Senior Site Reliability Engineer
Salary: £45 to £64 per hour
London - Hybrid (1-2 days office)
12 months temporary agency worker
Start: ASAP
What You’ll Be Doing
Reliability & Risk Engineering
* Identify systemic reliability risks and drive lasting preventative improvements.
* Define, implement, and refine SLIs, SLOs, and error budgets aligned with business and customer outcomes.
* Lead sophisticated incident management, post‑incident analysis, and extended remediation planning.
Architecture & Resilience
* Review and influence system architecture to improve scalability, availability, and failure isolation.
* Design strategies for high availability, graceful degradation, and disaster recovery across multi‑region environments.
* Quantify tradeoffs between performance, cost, and operational risk.
CI/CD & Deployment Safety
* Upgrade deployment pipelines and implement automation that diminishes risk and quickens delivery.
* Implement safe deployment patterns (canary, blue/green, progressive delivery).
* Ensure robust rollback and recovery mechanisms.
The Skills You’ll Need to Succeed
* Bachelor’s degree in Computer Science, Engineering, or equivalent practical experience.
* Recent experience in site reliability or production engineering required.
* Experience designing and operating CI/CD systems with deployment safety guardrails.
* Experience with multi‑cloud or multi‑region resilience architecture.
* Proficiency with monitoring and observability tools (e.g., Prometheus, Grafana, Datadog).
* Experience working with Infrastructure as Code tools such as Terraform or CloudFormation.
* Hands‑on experience operating production workloads in AWS, GCP, or Azure environments, including multi‑region deployments.
People First is committed to increasing diversity, and maintaining an inclusive workplace culture. We welcome applications from all qualified candidates regardless of their ethnicity, race, gender, religious beliefs, sexual orientation, age, marital status or whether or not they have a disability.
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