Site Reliability Engineer

SR2 | Socially Responsible Recruitment | Certified B Corporation; Slough; Hybrid; GBP 65,000 - 90,000; Full time

Job summary

SR2 is seeking an experienced Site Reliability Engineer (SRE) to join the Production Engineering team in London on a 6-month contract. You will apply software engineering principles to automate, scale, and secure cloud-native environments.

Responsibilities include building and maintaining production and demo environments, implementing observability with Prometheus, Grafana, and Loki, and guiding project teams in DevSecOps practices. Hybrid London model, SC level clearance may be required.

Qualifications

• Experience building automation and cloud-native infrastructure.
• Experience with DevSecOps practices and cost optimisation.
• Strong troubleshooting abilities for production systems.

Responsibilities

• Build, maintain, and support production and demo environments
• Automate infrastructure provisioning and deployment workflows (Terraform, GitHub Actions, GitOps)
• Package and deploy applications to customer environments
• Implement and optimise observability tooling (Prometheus, Grafana, Loki)
• Support incident response, monitoring, and backup/recovery planning
• Mentor project teams in DevSecOps practices and environment management
• Ensure cloud environments are secure, performant, and cost-optimised

Skills

Cloud platforms

Kubernetes

Docker

CI/CD

Python

Tools

Terraform

GitHub Actions

ArgoCD/Flux

OpenShift

Job description

Site Reliability Engineer (SRE)

DevSecOps | Cloud Engineering | Observability | Production Environments | London

SR2 is supporting a major 3-year programme and looking for an experienced Site Reliability Engineer (SRE) to join the Production Engineering team. This function underpins the reliability, security, and performance of all live environments, from production systems to critical customer deployments.

You’ll apply a software engineering mindset to operational problems, building automation, scalability, and resilience into cloud-native infrastructure. Beyond supporting live systems, this team also acts as a centre of excellence, guiding project teams in adopting best practices across DevSecOps, observability, and cost optimisation.

Key Responsibilities:

• Build, maintain, and support production and demo environments
• Automate infrastructure provisioning and deployment workflows (Terraform, GitHub Actions, GitOps)
• Package and deploy applications to customer environments
• Implement and optimise observability tooling (Prometheus, Grafana, Loki)
• Support incident response, monitoring, and backup/recovery planning
• Mentor project teams in DevSecOps practices and environment management
• Ensure cloud environments are secure, performant, and cost-optimised

Tech Environment & Skills:

• Cloud Engineering: AWS/Azure/GCP, Linux, Terraform (IaC)
• Containers: Kubernetes, Docker, Helm (OpenShift a plus)
• Observability: Prometheus, Grafana, Loki (network visualisation desirable)
• CI/CD & GitOps: GitHub Actions, ArgoCD/Flux
• Security: Cloud access models, Zero Trust principles
• Programming: Python or Golang preferred; Bash scripting
• Databases & Pipelines: PostgreSQL optimisation, Kafka integration
• Excellent problem-solving skills, with the ability to troubleshoot complex issues quickly

The Details:

• Contract: 6 months (multiple extensions likely)
• IR35: Inside
• Location: London twice a week (hybrid model)
• Clearance: SC level may be required depending on deployment

If you’re an experienced SRE who thrives on building reliable, secure, and cost-efficient production systems.