Are you a hands-on Infrastructure Engineer who enjoys taking complex technical solutions from build through to successful site deployment? Sopra Steria is delivering a major greenfield programme for the Defence sector, building and integrating infrastructure and applications within highly secure environments. This is a rare opportunity to support the rollout of nationally significant IT systems across multiple UK sites, where the work you do directly contributes to outcomes that matter. You will join a team of technical specialists responsible for deploying IT systems, infrastructure components, and end-user devices across secure Defence environments. Working closely with the Project Manager and Team Lead, you will play a key role in site deployments, technical implementation, integration, testing, and ongoing support. This is a hands-on role involving extensive UK travel in line with the project delivery plan, including regular overnight stays where required. The role is based from Hertfordshire. What you will be doing: Deploy, configure, and validate hardware and software across server, network, storage, and desktop environments. Carry out site-based implementation activities, including installation, integration, testing, and performance checks. Provide second- and third-line support, including fault identification, triage, resolution, and escalation in line with SLAs. Administer, maintain, and improve secure IT environments to support performance, availability, and operational readiness. Deliver technical tasks in line with project plans, site schedules, governance standards, and delivery procedures. Produce clear deployment records, test evidence, end-user guidance, and operational documentation. What you will bring: Strong infrastructure engineering experience across hardware deployment, endpoint installation, core services, and technical support. Experience deploying or supporting infrastructure across server, network, storage, and desktop environments. Proven fault-finding, diagnosis, and resolution skills across complex IT environments. Ability to work independently across UK sites while supporting successful delivery of small to medium-sized IT projects. Experience working to tight SLAs, project timelines, and high customer service standards. Understanding of secure installation standards and UK Government compliance requirements, such as JSPs, SCIDA/CIDA, or TEMPEST. It would be great if you had: Experience supporting site deployments, rollouts, hardware refreshes, or infrastructure transformation programmes. Exposure to Wintel, VMware, networking, storage, backup, monitoring, or endpoint management technologies. If you are interested in this role but not sure if your skills and experience are exactly what we're looking for, please do apply, we'd love to hear from you! Employment Type: Full-time, Permanent Location: Hertfordshire with UK wide travel Security Clearance Level: Eligible for Developed Vetting (DV) Internal Recruiter: Josh Salary: Competitive, based on experience Benefits: 25 days annual leave with the option to buy additional days, health cash plan, life assurance, pension Loved reading about this job and want to know more about us? 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. We embrace difference as a source of creativity, innovation and competitive advantage and are striving to become a more diverse organisation. We welcome applications from people with a diverse variety of backgrounds and identities. We are committed to equality of opportunity for all and do not discriminate on the basis of race, religion, colour, gender, age, disability, sexual orientation or marital status. We have partnered with Vercida, the UK's largest diversity and inclusion focused careers site, where all our vacancies are available in an accessible format. If you require any adjustments to the recruitment process, to enable you to perform to the best of your ability, please let us know when completing your application. We participate in the Disability Confident scheme and are committed to offering an interview to any candidate with a disability, who meets the minimum criteria for the role. If you believe this could apply to you, please let us know when completing your application.