Site ReliabilityEngineer

Site Reliability Engineer | Bristol, Hybrid (3 days onsite, 2 from home) | Up to £95K & Great Benefits Ready to take on high-impact engineering challenges that actually matter?

Want to work on mission-critical systems used across the UK’s most high-profile government organisations?

This is your chance to join Twin Stream —a team of elite engineers who built their careers cracking complex cross-domain problems, and then built a company to do it even better.

We’re growing fast.

Demand for our services is skyrocketing.

And now we’re looking for a Site Reliability Engineer who’s ready to step into a role with real ownership, real influence, and real opportunities to innovate.

Why You’ll Love This Role As our new SRE, you’ll be right at the heart of our evolving cloud and on-prem platforms.

This isn’t a “keep the lights on” job—it’s a role where you’ll shape infrastructure strategy, partner closely with software and systems teams, and push performance, reliability, and automation to the next level.

You’ll help us evolve observability, enhance delivery pipelines, eliminate toil, drive reliability metrics, and make smart technical decisions that keep our systems robust as we scale.

If you love solving gnarly problems, improving how things work, and innovating at speed—this is the role for you.

Key Responsibilities of the Site Reliability Engineer:

• Collaborating with Software Engineers to improve subsystem reliability and performance
• Partnering with System Administrators to automate toil and cut down alert noise
• Taking observability to the next level—find issues before they hit the business
• Supporting development environments to boost speed and quality
• Researching & evaluating tools to guide key buy‑vs‑build decisions
• Deepening your expertise across multiple technical and business domains
• Expanding your knowledge of diverse tech stacks and platforms

• Modern configuration management tools (Ansible, Chef or similar)
• Terraform
• CI/CD tooling (Jenkins or similar)
• MQ messaging (Rabbit
  
  MQ or other AMQP solutions)
• SQL & relational databases
• Network security fundamentals
• Cloud hosting (ideally AWS: EC2, RDS, S3, Lambda)
• Bonus points for:
• Experience with Java, Go, Python or similar
• Knowledge of cross‑domain principles & tech
• Hands‑on observability implementation
• Proven ability to reduce downtime with smart reliability metrics

• Private medical healthcare (including dental & optical for the whole family)
• Learning & development owned by YOU
• Electric vehicle salary‑sacrifice scheme - 28 days holiday bank holidays
• Regular team events, plus Christmas & summer parties
• Life assurance & cycle‑to‑work scheme

You’ll need to be eligible for SC and/or DV clearance. Any offer will be subject to successful security screening.

Ready to engineer impact?

Apply now and shape the future of secure, high-performance cross-domain systems.