An exciting opportunity has arisen for Senior Infrastructure Engineers to join a high‑performing IT engineering team supporting a mission‑critical, on‑premise communications environment used by hundreds of deployed users. We are looking to hire three engineers, including one role with a strong networking focus. This position involves designing, building, managing, and supporting secure IT infrastructure for a government‑aligned organisation. Due to the sensitivity of the environment, candidates must hold SC security clearance (DV desirable). Key Responsibilities As a Senior Infrastructure Engineer, you will: Maintain and support core IT infrastructure Diagnose and resolve complex technical issues Develop, deploy, and document new infrastructure solutions Monitor system performance and ensure high availability Support the end‑user device build process Work collaboratively with project, security, and engineering stakeholders Take ownership of technical areas while contributing to wider team strategy About You You enjoy being hands‑on with technology, solving problems, and ensuring robust, user‑focused infrastructure. You're able to balance detailed engineering work with an understanding of how systems integrate at scale. Essential Experience & Knowledge 3 years as an infrastructure engineer 8 years in a related IT field Strong knowledge of: Linux OS Windows Server Virtualisation technologies (VMware, Hyper‑V) Networking fundamentals (Cisco - routing, switching) Excellent troubleshooting and communication skills Ability to work both independently and as part of a team Desirable Skills Infrastructure as Code (Ansible, Terraform) Scripting / automation (PowerShell, Python, Bash) Containerisation (Docker, Kubernetes, Podman) Experience administering enterprise systems (Atlassian, GitHub, M365) Understanding of security and compliance frameworks (ISO27001, Cyber Essentials) Qualifications Essential: Degree (or equivalent experience) in Computer Science, IT, or a related fieldDesirable: Professional certifications (e.g., CCNA, RHCA, MCSE, VCP‑DCV)