Role: Site Reliability Engineer
Location: Manchester (on-site / secure environments)
Clearance: SC required | DV preferred
Employment: Permanent or Contract
Salary/Rate: Competitive + project allowances (DOE)

Overview

We are seeking a Site Reliability Engineer (SRE) to support mission-critical platforms within a secure, high-assurance environment. This role focuses on reliability, scalability, automation, and operational resilience across complex infrastructure and cloud-enabled services.

You will work within a collaborative engineering team ensuring systems remain secure, performant, and highly available to support critical national infrastructure and defence programmes.

Key Responsibilities

Maintain and improve reliability, availability, and performance of critical services
Implement monitoring, alerting, and observability solutions
Automate infrastructure provisioning and operational workflows
Support incident response, root cause analysis, and post-incident reviews
Improve system resilience through fault tolerance and self-healing design
Collaborate with DevOps, platform, and security teams to enhance service stability
Maintain documentation, runbooks, and operational procedures
Ensure systems meet security and compliance requirements

Technical Environment

Candidates should have experience across several of the following:

Infrastructure & Cloud

Linux systems administration
AWS, Azure, or private cloud environments
Virtualisation and container platforms

Automation & Infrastructure as Code

Terraform, Ansible, Puppet, or similar
CI/CD tooling (GitLab CI, Jenkins, Azure DevOps)

Containers & Orchestration

Docker & Kubernetes
Container security & runtime reliability

Observability & Monitoring

Prometheus, Grafana, ELK stack, Splunk, or similar
Logging, metrics, tracing & alerting strategies

Reliability & Performance

High availability design & scaling strategies
Load balancing & traffic management
Performance tuning & capacity planning

Essential Requirements

Active SC clearance (minimum) or eligibility
DV clearance highly desirable
Experience supporting production environments in secure or regulated sectors
Strong troubleshooting and incident management skills
Ability to work on-site within secure facilities

Desirable Experience

Experience in defence, government, or critical infrastructure environments
Knowledge of security hardening & compliance frameworks
Scripting skills (Python, Bash, PowerShell)
Understanding of Zero Trust and secure architecture principles

Why Join?

Work on nationally significant, high-impact programmes
Access to complex engineering challenges in secure environments
Collaborative teams focused on engineering excellence
Long-term programme stability and career development

Apply now to support secure, mission-critical systems that underpin national capability.