Senior Infrastructure Engineer – Defence & National Security (DV Cleared) Location: Farnborough (4–5 days on-site) Clearance: DV Cleared Salary: £85k excellent benefits Looking to take your infrastructure engineering expertise to the next level while making a meaningful impact on national security projects? This is a unique opportunity to work on high-priority, technically challenging programmes within a secure and innovative environment, where your skills and leadership will directly shape mission-critical outcomes for a digital innovations & defence partner with impressive secured growth. A DV Cleared Senior Infrastructure Engineer is required to join a highly collaborative, on-site team in Farnborough, delivering secure IT systems across multi-classification environments. This is a hands-on technical role with leadership responsibilities, providing an opportunity to mentor and guide a team of junior and mid-level engineers while remaining close to the technology. You'll have a direct impact on critical national defence programmes, enjoy daily access to company leadership with a strong voice in technical direction, benefit from funded personal development and training, and be part of a growing company where you can help shape the journey. You’ll be maintaining and enhancing secure, virtualised environments across multiple classification levels, leading and mentoring small engineering teams to deliver quality work on tight timelines, supporting infrastructure across public, private, and hybrid clouds, triaging, patching, and monitoring environments in line with security policies, collaborating to improve secure-by-design practices, and contributing to company growth through expertise sharing and bid support. What you’ll bring : Windows Server 2016 administration and builds VMware vSphere/vCenter/VCF/Hyper-V Linux (CentOS, RedHat, Ubuntu) PowerShell scripting EUD provisioning, patching, hardening Working within protectively marked environments Experience leading small technical teams or a strong willingness to step into a team leadership role Strong communication skills and a proactive mindset Active DV clearance required Willingness to be on-site in Farnborough 4–5 days a week Bonus if you have: • Experience with Elastic, Nessus, HashiCorp products, or containerisation (e.g., Docker/Kubernetes) • Application packaging and SSO operational knowledge Ready to lead, grow, and work on projects that truly matter? Join a high-performing team and contribute to the future of secure infrastructure delivery.