Salary: £65,000 - 65,000 per year Requirements: 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 programming language (e.g., Java or similar) Familiarity with 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 containerization (e.g., Docker, microservices) is beneficial Comfortable working in Agile environments Responsibilities: Work closely with development teams to resolve application-level issues, particularly where customers are impacted Build automation and long-term fixes to improve reliability and performance Collaborate in a highly engineering-focused environment with a strong emphasis on reducing manual support Engage in troubleshooting and debugging live systems Participate in on-call support as part of a shared rota Technologies: AWS Azure Bash CI/CD Cloud DevOps Docker ELK ElasticSearch Support Java JavaScript Linux MongoDB OpenStack PowerShell Puppet Security Web Windows microservices More: We are a growing National Security-focused tech consultancy expanding our engineering capability in Gloucester. We are looking to hire Site Reliability Engineers to support critical, customer-facing applications. We offer a salary between £40,000 and £65,000 depending on experience, a hybrid and flexible working model, and a comprehensive company benefits package. This is an opportunity to develop further within SRE/DevOps engineering and gain exposure to complex, high-impact systems in a secure environment, with a strong focus on engineering improvement over pure support work. last updated 19 week of 2026