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DevOps / SRE Engineer – National Security Business Unit
Join our growing team and help strengthen the UK’s safety and resilience.
We’re a leading technology and engineering company supporting customers across National Security, Defence and Intelligence, delivering systems that operate in the most demanding and sensitive environments.
About the Role
As a DevOps / SRE Engineer, you’ll build and operate highly available, secure and scalable services that support critical operations and sensitive data. This role combines operational excellence, automation-first delivery and strong security discipline across classified and unclassified environments.
Responsibilities
- Design, deploy, and support resilient web services across test, staging, and production environments
- Improve reliability, reduce technical debt, and lead incident response, root cause analysis (RCA), and no-blame postmortems
- Build and maintain infrastructure as code and container platforms using tools such as:
- Docker
- Kubernetes
- Helm
- Ansible
- Terraform
- Develop and optimise CI/CD pipelines (e.g. GitLab CI) for safe, repeatable deployments across environments
- Implement monitoring, logging, alerting, and tracing to improve visibility, troubleshooting, performance, and capacity planning
- Embed security into pipelines and infrastructure, including:
- Secrets management
- Certificates & encryption
- Access control
- Compliance automation
- Remediation of infrastructure incidents
- As a senior engineer, mentor others, influence engineering standards, and contribute to platform and reliability strategy
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Requirements
Essential
- Experience deploying production web services, ideally including AI-enabled processing workflows
- Strong DevOps / SRE background with CI/CD tooling (e.g. Jenkins, GitLab CI)
- Experience with containerisation and orchestration, including:
- Docker
- Kubernetes
- Helm
- Familiarity with infrastructure as code tools, such as:
- Terraform
- Ansible
- Helm
- ArgoCD
- Experience with observability tooling, e.g. Prometheus, Grafana, Kibana
- Coding ability in:
- Python
- JavaScript
- Java
- Willingness to learn new technologies
- Experience using AI-assisted development tools in day-to-day engineering work
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Nice to have
- AWS experience
- Experience with agentic workflows or AI data pipelines
Why Roke?
- Work with smart, supportive people on projects that genuinely matter
- Environment valuing technical excellence, collaboration and continuous learning
- Invests in your growth and offers flexible working
- Strong benefits package, including 30 days’ holiday plus bank holidays
- Combines 70+ years of heritage with agility to make a real impact
Location & Clearance
- Role based in Gloucester, work across Roke office and customer sites
- Limited hybrid working may be possible, depending on business needs
- Valid eDV clearance required
If eligible but not currently holding eDV, explore other engineering roles via Roke’s Careers Page. Further eligibility details available on gov.uk.
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