Senior Infrastructure Engineer - Linux

There is a lot happening in Linux! Join our dynamic IT Defence team, where you will be responsible for all aspects of our Linux capabilities. This role offers exposure to business‑as‑usual operations, delivered services, and innovative project work. We welcome candidates with experience in Slurm or HPC and Ansible. We have different level opportunities in this growing team, so don't shy away if you don't have all the skills.

You do need to be eligible for SC and DV Clearance. Hybrid Fixed: 3 days per week on our Portsmouth OR Salisbury site, 2 days home working.

• Oversee and enhance Linux platform capabilities.
• Develop and maintain open‑source and commercial tooling.
• Provide expert 3rd line technical support, mentoring, and fault resolution for 1st/2nd line teams.
• Act as a subject matter expert in Linux.

• Extensive experience in large-scale Linux platform engineering and automation.
• Proficiency with Enterprise Linux OS (Red Hat, CentOS, Oracle) to RHCE level.
• Familiarity with Dev Ops and automation tools (Terraform, Git, Ansible, Vault).
• Experience in building and securing Linux environments, including Kubernetes clusters (on‑premise and cloud).

Clearance:
Eligible for SC and DV. Referral Bonus: £1500.00. Sopra Steria's Aerospace, Defence and Security business designs, develops and deploys digital solutions to Central Government clients. The work we do makes a real difference to the client's goal of National Security, and we operate in a unique and privileged environment. We are given time for professional development activities, and we coach and mentor our colleagues, sharing knowledge and learning from each other.

We foster a culture in which employees feel valued and supported and have pride in their work for the customer, delivering outstanding rates of customer satisfaction in the UK's most complex safety‑and‑security‑critical markets.