SRE Technical Lead - Hybrid UK, Reliability & Scale

83zero Ltd; United Kingdom; Hybrid; GBP 90,000 - 110,000; Full time

Benefits offered by this job

Salary up to 100,000

5% annual bonus

Hybrid working model

Lead reliability engineering across大型/

Job summary

83zero Ltd is seeking an experienced SRE Technical Lead to own reliability and operational excellence of critical cloud platforms in a complex, multi‑vendor environment. The role is a senior technical leadership position acting as the technical authority for Site Reliability Engineering across large-scale platforms.

Candidates must hold active SC clearance and be a sole UK national. The role involves defining SRE strategy, driving automation, and mentoring engineers to raise SRE maturity.

Qualifications

• Strong experience with Kubernetes and OpenShift.

Responsibilities

• Define and drive the SRE strategy, standards, SLAs, SLOs and error budgets.
• Embed reliability engineering principles into platform and service design.
• Lead the adoption of core SRE practices including reliability reviews, operational readiness and toil reduction.
• Drive automation across monitoring, incident response, recovery and remediation.
• Govern reliability-focused Infrastructure as Code, CI/CD pipelines and operational tooling.
• Identify and remove systemic causes of operational overhead while improving scalability, resilience and operability.
• Act as the senior technical escalation point for major incidents and high-risk releases.
• Lead blameless post-incident reviews and ensure measurable service improvements.
• Define and oversee observability, monitoring and capacity management practices.
• Ensure SRE approaches align with security, governance and compliance requirements.
• Mentor and coach senior engineers, helping to improve SRE maturity across engineering teams.

Skills

Kubernetes

OpenShift

Multi-cloud design

Istio service mesh

Observability tools

IaC / GitOps

CI/CD for reliability

PostgreSQL familiarity

Technical leadership

Tools

Prometheus

Grafana

Loki

Tempo

OpenTelemetry

Helm

Kustomize

ArgoCD

Tekton

Red Hat ACM/ACS

Submariner networking

Job description

83zero Ltd is seeking an experienced SRE Technical Lead to own reliability and operational excellence of critical cloud platforms in a complex, multi‑vendor environment. The role is a senior technical leadership position acting as the technical authority for Site Reliability Engineering across large-scale platforms.

Candidates must hold active SC clearance and be a sole UK national. The role involves defining SRE strategy, driving automation, and mentoring engineers to raise SRE maturity.