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 dont shy away if you dont 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. What you'll be doing: 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. What we need from you: Extensive experience in large-scale Linux platform engineering and automation. Proficiency with Enterprise Linux OS (RedHat, CentOS, Oracle) to RHCE level. Familiarity with DevOps and automation tools (Terraform, Git, Ansible, Vault). Experience in building and securing Linux environments, including Kubernetes clusters (on-premise and cloud). It would be great if you had: Network technologies (LAN, WAN, Cisco switching, Juniper and Fortinet security products) and working knowledge of TCP/IP networking. Database administration (MySQL, PostgreSQL, MariaDB or InfluxDB). Virtualisation management experience - VMware, XenServer, OpenStack or Hyper-V. Working knowledge of Openshift, Openstack. Secure LINUX and IPTablesI If you are interested in this role but not sure if your skills and experience are exactly what were looking for, please do apply, wed love to hear from you! Employment Type: Permanent Location: Hybrid Fixed: 3 days in Portsmouth OR Salisbury. Security Clearance Level: Eligible for SC and DV Clearance. Internal Recruiter: Jane Salary: To £Dependant on experience Benefits: 25 days annual leave with the choice to buy additional days, health cash plan, life assurance, pension, and generous flexible benefits fund. Loved reading about this job and want to know more about us? ? Sopra Sterias 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 clients 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 UKs most complex safety- and security-critical markets.