Site Reliability Engineer

Company: Twinstream Limited
Apply for the Site Reliability Engineer
Location: London
Job Description:

Site Reliability Engineer | Up to £95,000 DOE | Fully Remote Initially | Cheltenham | Future Hybrid WorkingBuild resilient systems. Solve complex challenges. Make a real impact.Are you a Site Reliability Engineer or DevOps professional who enjoys getting stuck into complex infrastructure challenges?Do you want to work with talented engineers on meaningful projects where

reliability, security and technical excellence really matter ?This could be your next opportunity.We’re looking for an experienced

Site Reliability Engineer

to join a growing technology business of more than 100 people across the UK. You’ll play a key role in designing, building and maintaining resilient systems that support critical operations, while helping shape the technology and practices that underpin them.What’s in it for you?This is a genuinely hands-on role with plenty of scope to influence technical direction, solve interesting problems and make improvements that have a tangible impact.You’ll initially work

fully remotely , with the potential to move to a hybrid arrangement in

Cheltenham

in the future. Subject to eligibility, you’ll also have the opportunity to progress through security clearance, potentially up to

DV level .You’ll be joining a collaborative environment where learning, development and continuous improvement are actively encouraged.Your RoleAs a Site Reliability Engineer, you’ll work across the full infrastructure stack — from bare-metal systems and physical infrastructure through to virtualised environments and the applications running on them.Your responsibilities will include:Designing, building and maintaining reliable, scalable physical and virtual infrastructureMonitoring system performance and proactively identifying and resolving issuesAutomating processes using tools such as

AnsibleWorking with infrastructure as code and configuration managementSupporting CI/CD and wider automation practicesImplementing and improving monitoring, logging and alertingCollaborating with engineers, stakeholders and wider teamsIdentifying opportunities to improve system performance, reliability and efficiencyContributing to the continuous improvement of tools, systems and engineering practicesWhat are we looking for?You don’t need to tick every single box. If you have strong experience across most of the following, we’d love to hear from you:Experience in Site Reliability Engineering, DevOps or a similar infrastructure-focused roleStrong knowledge of cloud platforms such as AWS, Azure or GCPExperience with Infrastructure as Code and configuration management tools such as Terraform and AnsibleFamiliarity with CI/CD pipelines and automationUnderstanding of monitoring, logging and alerting technologiesA methodical, collaborative approach to problem-solvingA genuine interest in building reliable, secure and scalable systemsThe Package£75,000 – £95,000 salary, depending on experienceAnnual bonus8% non-contributory pension28 days’ holiday plus bank holidaysOption to buy or sell an additional week of holidayPrivate healthcareLife insuranceEnhanced parental leaveFlexible workingLearning, development and career progression opportunitiesA supportive, inclusive team environmentThe opportunity to work on meaningful, technically challenging projectsLocation & Security ClearanceThe role is

fully remote initially . Following successful security clearance, there may be a requirement to work

2–3 days per week onsite in Cheltenham

in the future.Due to the nature of the work and the sectors supported, employment will be subject to successful completion of the relevant security screening and clearance process.Candidates must be eligible for

BPSS / SC / DV clearance

and meet the relevant UK Government residency and right-to-work requirements associated with the required level of clearance.Ready for your next challenge?If you’re an SRE or DevOps professional who enjoys solving difficult problems, improving infrastructure and working on projects that genuinely matter,

we’d love to hear from you.Apply today and take the next step in your career.

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Posted: September 23rd, 2026