Job Description

Posted 2 hours ago

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 TwinStream—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
What You Bring

Modern configuration management tools (Ansible, Chef or similar)
Terraform
Docker containers & orchestration (Kubernetes, OpenShift, Docker Swarm)
CI/CD tooling (Jenkins or similar)
Monitoring/metrics stack (InfluxDB, Prometheus, Grafana)
MQ messaging (RabbitMQ or other AMQP solutions)
SQL & relational databases
Linux administration & shell scripting
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
Service management experience
Hands-on observability implementation
Proven ability to reduce downtime with smart reliability metrics
Why You’ll Love Working at TwinStream

Competitive salary, £65k – £95k DOE
8% employer pension contribution
Private medical healthcare (including dental & optical for the whole family)
Flexible working culture
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
Security Clearance

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