A growing National Security-focused tech consultancy is expanding its engineering capability in Gloucester and is looking to hire Site Reliability Engineers to support critical, customer-facing applications. This role sits between software engineering and operations ideal for someone who enjoys working on live systems, solving complex issues, and improving how applications are built and supported. The position will involve working closely with development teams to resolve application-level issues, particularly where customers are impacted, while also building automation and long-term fixes to improve reliability and performance. The environment is highly collaborative and engineering-led, with a strong focus on reducing manual support through automation and best practice. Whats on offer Salary between £40,000 £65,000 depending on experience

Hybrid and flexible working model

Company Benefits Pack

Opportunity to move into or further develop within SRE / DevOps engineering

Exposure to complex, high-impact systems in a secure environment

Strong focus on engineering improvement vs pure support work

On-call allowance as part of a shared rota

What you need

Experience troubleshooting application issues in live/production environments

Understanding of how applications behave across the full stack (code, infrastructure, databases)

Experience with at least one of the following:

Java or similar programming languages

JavaScript / web technologies

Familiarity with Linux or Windows environments (e.g. Bash, PowerShell)

Exposure to cloud platforms such as AWS, Azure or OpenStack

Experience with monitoring/logging tools (e.g. ELK stack)

Knowledge of databases such as MongoDB or Elasticsearch

Understanding of CI/CD or deployment tooling (e.g. Chef, Puppet)

Experience with containerisation (e.g. Docker, microservices) is beneficial

Comfortable working in Agile environments

This role would particularly suit:

Software engineers looking to move closer to platform/SRE work Support engineers wanting a more engineering-led role Individuals who enjoy debugging, problem-solving, and improving systems rather than just maintaining them

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