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This job expired on 15/09/2026. It no longer accepts applications.

System Administrator

Haystack

Senior 🇬🇧 English
Microsoft 365 Intune Entra ID Exchange Online SharePoint OneDrive Windows Server Linux VMware LAN/WAN VPN DNS DHCP endpoint protection patch management automation AI

Job description

About the role

We are looking for a System Administrator to be the primary onsite point of contact for IT, supporting internal stakeholders and managing the Microsoft 365 environment and server infrastructure.

Key responsibilities

  • Provide 2nd‑level support, manage escalations end‑to‑end and act as the main onsite IT contact.
  • Administer and continuously improve Microsoft 365 services (Intune, Entra ID, Exchange Online, SharePoint, OneDrive).
  • Maintain server and virtualization platforms (Windows Server, Linux, VMware/Hyper‑V) and core networking (LAN/WAN, VPN, DNS, DHCP).
  • Lead IT projects from scoping to rollout, including security, automation and tooling initiatives.
  • Coordinate external service providers and keep system documentation up to date.
  • Identify and implement automation and AI‑supported solutions to increase efficiency.
  • Gradually take on onsite leadership tasks such as mentoring, coordination and onboarding support.

Required profile

  • Completed IT training or comparable qualification with a solid technical foundation.
  • 5+ years of experience in IT system administration or a senior IT role.
  • Proactive, structured work style and ability to work autonomously.
  • Resilient and clear communication with both technical and non‑technical stakeholders.
  • Fluent in English and able to communicate in German.
  • Willingness to work on‑site in Berlin at least two days per week.

Required skills

  • Microsoft 365 (Intune, Entra ID, Exchange Online, SharePoint, OneDrive)
  • Server administration (Windows Server, Linux)
  • Virtualisation (VMware, Hyper‑V)
  • Networking fundamentals (LAN/WAN, VPN, DNS, DHCP)
  • IT security fundamentals (endpoint protection, identity and access management, patch management)
  • Automation and AI‑supported solutions

What we offer

  • Flexible working hours with home‑office and remote work options.
  • Open company culture with fair communication and feedback.

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Published 2 months ago

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