Senior Site Reliability Engineer: Automation & Observability

National Health Service; Greater London; Hybrid; GBP 42,000 - 52,000; Full time

Benefits offered by this job

Hybrid working

Flexible working arrangements

On-site core HQs

Job summary

UK Health Security Agency (UKHSA) is recruiting a permanent Site Reliability Engineer to join the HPC & SRE engineering team, combining software and systems engineering to build, improve, and operate reliable production systems. The role is available full-time, part-time, as a job share, or with flexible working.

We offer hybrid working from our core HQs or scientific campuses with 60% on site. Salary is £41,983–£52,113 per year, with a market pay supplement up to £5,000 pro rata, subject to

Qualifications

• Experience as a Site Reliability Engineer, DevOps Engineer, Operations Engineer, or similar role.
• Proficient in Python, PowerShell, or Bash scripting.
• Strong understanding of Linux/Unix and Windows systems, networking and distributed systems.
• Experience with observability tools (Prometheus, Grafana, Datadog) and alerting systems.
• Familiarity with infrastructure automation tools (Terraform, Ansible, PowerShell, Helm).
• Excellent communication and collaboration skills; able to respond to unexpected demands.
• Desirable: CI/CD, cloud platforms (AWS, GCP, Azure), and Kubernetes.

Responsibilities

• Ensure services are stable, scalable, and automated.
• Respond to production incidents and conduct root cause analysis and post-incident reviews.
• Identify bottlenecks, tune performance, and plan capacity for current and future workloads.
• Contribute to monitoring, alerting, and observability improvements.
• Develop automation and tooling; use Infrastructure as Code to improve reliability.
• Define and track SLOs/SLIs and error budgets; drive operational improvements.
• Promote SRE practices across the organization and integrate reliability into development.
• Collaborate with software, DevOps, and infrastructure teams to improve deployment workflows.
• Maintain runbooks, post-incident reports, and provide mentorship to engineers.

Skills

Python

PowerShell

Bash

Linux/Unix

Windows

Observability

Tools

AWS

Azure

GCP

Ansible

Terraform

Helm

Kubernetes

Prometheus

Grafana

Datadog

CI/CD

Job description

UK Health Security Agency (UKHSA) is recruiting a permanent Site Reliability Engineer to join the HPC & SRE engineering team, combining software and systems engineering to build, improve, and operate reliable production systems. The role is available full-time, part-time, as a job share, or with flexible working.

We offer hybrid working from our core HQs or scientific campuses with 60% on site. Salary is £41,983–£52,113 per year, with a market pay supplement up to £5,000 pro rata, subject to