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- Tasks: Ensure mission-critical systems are performant, secure, and cost-effective while collaborating with teams.
- Company: TwinStream is a consultancy founded by engineers, delivering secure and scalable solutions for the UK government.
- Benefits: Enjoy flexible working, private medical care, an annual training budget, and 25 days of leave.
- Why this job: Join a mission-driven team that values engineering excellence and work-life balance.
- Qualifications: Expertise in Infrastructure as Code, Docker, CI/CD, and AWS is essential; coding skills are a plus.
- Other info: Role includes occasional travel and possible 24/7 callout when on rota.
Site Reliability Engineer | Bristol (3 days onsite, 2 days remote) | £65,000–£95,000 DOE
Qualifications, skills, and all relevant experience needed for this role can be found in the full description below.
Join a Team That Builds the Backbone of Secure, High-Performance Systems
In 2019, a group of engineers solving complex cross-domain challenges inside government organisations decided to take things further — and TwinStream was born.
Our mission? To deliver technical excellence, operational reliability, and exceptional client service for some of the UK’s most high-profile government projects.
Now, we’re growing — and we’re looking for a Site Reliability Engineer (SRE) who’s ready to shape the next generation of resilient, high-impact infrastructure.
Key Responsibilities of the Site Reliability Engineer:
As a TwinStream SRE, you’ll sit at the heart of our operation — ensuring the availability, performance, and cost-effectiveness of mission-critical cross-domain services.
You’ll work closely with feature development teams and our BAU/Support engineers to:
Drive reliability, performance, and scalability across cloud and on-prem systems
Automate toil, reduce alert fatigue, and evolve monitoring capabilities
Build and refine CI/CD pipelines to enable seamless delivery
Strengthen observability and proactively prevent issues before they impact users
Evaluate cutting-edge tools, frameworks, and cloud solutions to keep us ahead of the curve
Expand your expertise across diverse technical domains and architectures
What You’ll Bring:
Proven experience with Azure and modern infrastructure management tools (Ansible, Chef, etc.)
Strong hands-on experience with Terraform, Docker, and Kubernetes/OpenShift/Docker Swarm
Deep understanding of CI/CD pipelines (e.g. Jenkins), monitoring tools (Grafana, Prometheus, InfluxDB), and event-driven messaging (RabbitMQ or similar)
Confident with Linux, SQL, and network security protocols
Familiar with AWS services (EC2, S3, Lambda, RDS)
Bonus points if you have:
Experience coding in Python, Java, or Go
Knowledge of cross-domain technologies or service management environments
Hands-on experience applying observability patterns and building availability metrics
Why You’ll Love Working Here:
8% employer pension contribution — invest confidently in your future
Private medical healthcare (including dental & optical) for you and your family
Learning and development budget — own your career growth
Flexible working culture — 3 days onsite, 2 from home
Electric Vehicle salary sacrifice scheme
28 days holiday + bank holidays
Team events & celebrations — quarterly meetups, summer & Christmas parties
Cycle to work scheme & life assurance for peace of mind
Security Requirements
Due to the nature of our work, successful candidates will need to be eligible for SC and/or DV clearance. xiskglj
Ready to Build What Matters?
If you’re passionate about automation, resilience, and solving complex infrastructure challenges that make a real impact — we’d love to hear from you.
Apply now and join TwinStream, where your engineering skills keep the UK’s most vital systems running smoothly
Contact Detail:
Twinstream Limited Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Site Reliability Engineer
✨Tip Number 1
Familiarise yourself with the specific tools mentioned in the job description, such as Terraform for Infrastructure as Code and Docker for container orchestration. Having hands-on experience or projects showcasing these skills can set you apart during discussions.
✨Tip Number 2
Network with current or former Site Reliability Engineers, especially those who have worked in similar environments. Engaging in conversations about their experiences can provide valuable insights and potentially lead to referrals.
✨Tip Number 3
Stay updated on the latest trends and best practices in site reliability engineering. Participating in relevant online forums or attending industry meetups can help you gain knowledge and demonstrate your passion for the field.
✨Tip Number 4
Prepare to discuss real-world scenarios where you've improved system performance or resolved issues proactively. Being able to share specific examples will showcase your problem-solving skills and align with the responsibilities of the role.
We think you need these skills to ace Site Reliability Engineer
Some tips for your application 🫡
Understand the Role: Before applying, make sure you fully understand the responsibilities and requirements of a Site Reliability Engineer at TwinStream. Familiarise yourself with the key technologies mentioned in the job description, such as Terraform, Docker, and AWS.
Tailor Your CV: Customise your CV to highlight relevant experience and skills that align with the job description. Emphasise your expertise in Infrastructure as Code, CI/CD processes, and any experience with monitoring tools like Grafana or Prometheus.
Craft a Compelling Cover Letter: Write a cover letter that showcases your passion for engineering excellence and reliability. Mention specific projects or experiences that demonstrate your ability to automate and troubleshoot systems effectively.
Proofread Your Application: Before submitting, carefully proofread your application materials. Check for any spelling or grammatical errors, and ensure that all information is clear and concise. A polished application reflects your attention to detail.
How to prepare for a job interview at Twinstream Limited
✨Showcase Your Technical Skills
Be prepared to discuss your experience with Infrastructure as Code, particularly with tools like Terraform. Highlight any projects where you've successfully implemented automation and reliability solutions.
✨Demonstrate Problem-Solving Abilities
Expect scenario-based questions that assess your troubleshooting skills. Prepare examples of how you've proactively resolved issues in previous roles, especially in high-availability environments.
✨Familiarise Yourself with Their Tech Stack
Research TwinStream's use of Docker, Kubernetes, and CI/CD tools like Jenkins. Being knowledgeable about their specific technologies will show your genuine interest in the role and the company.
✨Emphasise Team Collaboration
Since the role involves working closely with engineers and sysadmins, be ready to discuss your experience in collaborative environments. Share examples of how you've effectively partnered with cross-functional teams to achieve common goals.
