> Markdown version of [/jobs/ext/3837290-active-directory-and-federation-services-engineer-powershell-c-gpo-for-nato-with-security-clearance](https://www.wearedevelopers.com/jobs/ext/3837290-active-directory-and-federation-services-engineer-powershell-c-gpo-for-nato-with-security-clearance). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Active Directory and Federation Services Engineer (PowerShell, C#, GPO) for NATO with security clearance - **Company:** WLG - **Location:** Eigenbrakel, Belgium - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Vbscript, Active Directory, Active Directory Federation Services, C Sharp (Programming Language), Information Systems, Disaster Recovery, Domain Name System (DNS), Identity and Access Management, Windows Servers, Windows PowerShell - **Published:** October 20, 2026 - **Apply:** https://www.adzuna.be/details/5934755595 ## About the Role * A degree in computing or information systems, or an equivalent professional accreditation * At least 10 years installing and maintaining directory synchronisation services in enterprise environments * At least 10 years with Active Directory and Federation Services across federated domains and forests * Deep Microsoft Identity Manager experience, Global Address List synchronisation, GPO, DNS and gMSA accounts * C#, PowerShell and VBScript, and Windows Server 2016 to 2025 * Fluent English and the ability to juggle several projects at once ## Description A multinational defence organisation in Braine-l'Alleud runs a large, federated Active Directory estate kept in step by Microsoft Identity Manager. It is looking for a senior engineer who knows the synchronisation engine inside out and can keep identity running smoothly across domains and forests. What you would be doing * Diagnosing and fixing complex identity management issues, with a focus on the MIM synchronisation engine * Installing, running and administering Active Directory, ADFS, directory services and MIM * Writing new MIM management agent rules and improving the service over time * Handling incidents and root cause analysis, and planning maintenance and disaster recovery * Advising development, operations and security teams, and supporting exercises when needed * Writing and maintaining standard operating procedures