Site Reliability Engineer

Pioneering People; Hereford; Hybrid; GBP 100,000 - 125,000; Full time

Job summary

A leading technology firm in the UK is looking for a Site Reliability Engineer to ensure the reliability and performance of critical systems. This contract role offers a competitive daily rate of £500–£600, hybrid working from Hereford, and opportunities to work on impactful projects. Ideal candidates should have expertise in Terraform, Docker, and AWS among other technologies. Join us to make a difference in high-stakes environments.

Qualifications

• Proven experience with Terraform and modern configuration tools.
• Hands-on experience with Docker and Kubernetes.
• Deep understanding of monitoring tools like Grafana.

Responsibilities

• Partner with Software Engineers to enhance reliability and performance.
• Collaborate with SysAdmins to automate manual tasks.
• Build smarter monitoring and observability pipelines.

Skills

Terraform

Docker

Kubernetes

CI/CD pipelines

Monitoring tools

Linux

AWS

Job description

Site Reliability Engineer (Contract – Outside IR35) | Hybrid – Hereford (with occasional site visits) | Day Rate : £500–£600

Build, Optimise, and Secure the Systems That Power the UK’s Most Critical Infrastructure

In 2019, a team of engineers solving complex cross-domain challenges inside government organisations came together to form TwinStream — a business built on technical excellence, innovation, and exceptional service.

Today, we deliver cutting-edge cross-domain and cloud infrastructure solutions to some of the most high-profile government programmes in the country.

Now we’re looking for a Site Reliability Engineer (SRE) to join us on a contract basis — someone ready to own reliability, drive automation, and keep our systems performing flawlessly.

The Site Reliability Engineer Role :

As a Site Reliability Engineer at TwinStream, you’ll be instrumental in ensuring the availability, performance, and resilience of our secure, high-impact services.

You’ll work with development and support teams to evolve infrastructure, streamline delivery pipelines, and strengthen system observability — ensuring performance bottlenecks and reliability risks are resolved before they ever reach production.

Expect a technically rich environment, diverse challenges, and the opportunity to make a measurable difference.

Key Responsibilities of the Site Reliability Engineer :

• Partner with Software Engineers to enhance reliability and performance across complex systems
• Collaborate with SysAdmins to automate toil and eliminate manual intervention
• Build smarter monitoring, logging, and observability pipelines to detect and resolve issues early
• Support and improve development environments to hit delivery and quality goals
• Research new tools, services, and architectures to drive scalability and resilience
• Expand your expertise across both cloud and on-prem environments

What You’ll Bring :

• Proven experience with Terraform and modern configuration tools (Ansible, Chef, etc.)
• Skilled with Docker and Kubernetes / OpenShift / Docker Swarm
• Hands‑on experience building and maintaining CI / CD pipelines (e.g. Jenkins)
• Deep understanding of monitoring & observability tools (Grafana, Prometheus, InfluxDB)
• Solid grounding in Linux, network security, SQL, and AWS (EC2, S3, RDS, Lambda)
• Comfortable with MQ messaging (RabbitMQ or similar)

Bonus points for :

• Experience with Azure environments
• Strong coding ability in Python, Java, or Go
• Knowledge of cross‑domain systems or service management frameworks
• Proven application of observability and uptime metrics to reduce downtime

The Offer :

• Contract position outside IR35
• £500–£600 per day (DOE)
• Hybrid working from Hereford with occasional travel to other sites
• Possible 24 / 7 on‑call rota (with premium compensation)
• Work on secure, high‑impact projects that make a real difference
• Collaborate with some of the UK’s best engineers in an agile, forward‑thinking environment

Security Clearance :

Due to the nature of our projects, candidates must be eligible for DV Clearance .

Ready to Deliver Reliability That Matters?

If you’re an experienced SRE who thrives on solving complex infrastructure challenges, driving automation, and delivering secure, high‑performance systems — we want to hear from you.

Apply now and join TwinStream — where your engineering skill keeps critical systems running, reliably.