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System Architect (m/f/d)

Contract
Luxembourg, Luxembourg
29.05.2026
We are looking for a System Architect to join our client, an EU Institution based in Brussels.

Responsibilities
  • Design, implement, and maintain Microsoft Exchange on-premise architecture across multiple versions (2012/2013/2019).
  • Provide expert-level (SME) support and guidance on Exchange and Terminal Server environments.
  • Lead and execute Exchange upgrade, migration, and modernization initiatives.
  • Automate administrative and operational tasks using PowerShell scripting.
  • Monitor, maintain, and ensure systems are updated with the latest patches and security standards.
  • Troubleshoot and resolve complex infrastructure incidents, ensuring high availability and performance.
  • Support file migration activities from Windows Server environments to OpenText solutions and contribute to operational support (on-call/shift-based).

Requirements
  • Microsoft oriented infrastructure engineer
  • Familiar with Microsoft Exchange On-Premise environment
  • SME and architectural support for Exchange Server 2012 / 2013 / 2019 environments and Terminal Server
  • PowerShell scripting and automation
  • Ensuring Exchange environments remain at the latest supported patch and update levels
  • Planning and execution of future Exchange upgrade activities
  • Participation in file migration activities from Windows Server environments to OpenText solutions
  • Handling of operational support activities, including early shift/late shift/ & on-call activities where required
  • Investigation, diagnosis, and resolution of Windows and Microsoft infrastructure related incidents and requests

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