About this role
Salary: £75,000 - 75,000 per year
Requirements: Active eDV clearanceStrong experience administering Microsoft Exchange On-Premise environmentsHands-on experience with SharePoint Server Subscription Edition (SPSE)Experience supporting Skype for Business within enterprise environmentsStrong infrastructure knowledge, including administration, troubleshooting, clustering and hardware evaluationExperience working within highly governed environments with strict service level agreementsDesirable: Experience with X.400 messaging, particularly within military or highly secure environmentsDesirable: Microsoft certifications, or equivalent, across messaging or infrastructure technologiesDesirable: Strong technical documentation skills, including operational procedures and user guidance Responsibilities: Design, build, configure and deploy secure on-premise messaging and collaboration platformsManage and support critical messaging infrastructure, ensuring high availability, resilience and performanceTroubleshoot complex technical issues across messaging and infrastructure technologiesLead or contribute to technical project delivery within a structured governance frameworkDrive service improvements, operational efficiency and platform optimisationSupport knowledge sharing and mentoring across the wider messaging team Technologies: HardwareSupportSecuritySharePoint More:
We are hiring a Lead Messaging Engineer to join a highly secure engineering team delivering mission-critical communication platforms that support national security operations. This is an on-site role based in Cheltenham, offering a salary of up to £75,000 plus a car allowance and clearance bonus, along with benefits including an annual DV clearance retention bonus, 25 days annual leave with the option to buy up to 10 additional days, private medical insurance, and a 6% employer pension contribution. We work in a structured, highly regulated environment and welcome candidates from defence, military, or other secure communications backgrounds who want to broaden their expertise across a wider messaging capability.
last updated 29 week of 2026