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# Linux SME - DV Cleared

- **Company:** CBS Butler Limited
- **Location:** Reading, UK
- **Experience:** Expert
- **Salary:** £156,000.0 - £169,000.0
- **Contract:** Temporary to permanent
- **Skills:** Bash Shell, Cloud Computing, Configuration Management, Linux, DevOps, Github, Python (Programming Language), Linux System Administration, OpenShift, Red Hat Enterprise Linux, Ansible, Systems Integration, Scripting, DevOps Tools - Open-source, Git, Gitlab-ci, Kubernetes, Infrastructure Automation Frameworks, Information Technology, Terraform, Software Version Control, Docker, Jenkins
- **Published:** October 4, 2026
- **Apply:** https://www.careerjet.co.uk/job/gb8c4edce9b6d10092d56586c7ef198db3/eaa

## About the Role

* Extensive commercial experience working with Linux in an enterprise environment.
 * Strong hands-on experience across DevOps / Platform Engineering.
 * Excellent Linux administration and troubleshooting skills.
 * Strong scripting/automation experience, ideally with Bash and/or Python.
 * Experience with CI/CD pipelines and DevOps tooling.
 * Strong understanding of Git and source control.
 * Experience with Infrastructure as Code, ideally Terraform and/or Ansible.
 * Experience working with containers and container orchestration technologies.
 * Strong understanding of networking, systems integration and infrastructure concepts.
 * Experience working in secure, highly controlled or complex technical environments.
 * Ability to operate independently as a senior technical SME.
 * Excellent problem-solving and communication skills.
 * Current, active MOD DV clearance.

Desirable

 * Kubernetes / OpenShift experience.
 * Docker / containerisation.
 * Jenkins, GitLab CI, GitHub Actions or similar.
 * Ansible.
 * Terraform.
 * Cloud platform experience.
 * Red Hat Enterprise Linux or equivalent.
 * Experience within UK Government / MOD / Defence environments.
 * Experience working with security-hardened Linux environments.
 * Relevant Linux, DevOps or cloud certifications., We're looking for a genuine hands-on SME, rather than someone purely focused on management. You should be comfortable getting into the detail, diagnosing difficult technical problems and making pragmatic engineering decisions.
You'll be joining a technically demanding environment where your experience in Linux, automation and DevOps will have a direct impact on the reliability and evolution of the platform., If you are an experienced Linux SME with active MOD DV clearance and are interested in a long-term contract opportunity, we'd like to hear from you.

## Description

We are looking for an experienced Linux Subject Matter Expert (SME) to join a high-profile technical environment based onsite in Reading.
You will provide senior-level technical expertise across Linux infrastructure, DevOps tooling, automation and platform engineering. The role will suit someone who is comfortable operating as a technical authority, solving complex infrastructure problems and working closely with engineering, development and operational teams.
Due to the nature of the environment, active MOD DV clearance is essential., * Act as a Linux and DevOps SME, providing technical leadership and guidance across the environment.

 * Design, implement and maintain robust Linux-based infrastructure and platforms.
 * Support the development and continuous improvement of DevOps processes and tooling.
 * Automate infrastructure, configuration and operational processes wherever possible.
 * Troubleshoot and resolve complex Linux, infrastructure and platform issues.
 * Develop and maintain CI/CD pipelines and associated tooling.
 * Support infrastructure-as-code and configuration management practices.
 * Contribute to platform resilience, availability, security and performance.
 * Work closely with engineering, development, security and operations teams.
 * Provide technical documentation, standards and best-practice guidance.
 * Mentor and support other engineers where required.
 * Investigate emerging technologies and recommend improvements to the existing platform.
 * Participate in technical design, architecture and implementation activities.