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System Administrator

Haystack

Senior 🇬🇧 English
Microsoft 365 Intune Entra ID Exchange Online SharePoint OneDrive Windows Server Linux VMware Hyper-V LAN WAN VPN DNS DHCP Endpoint protection Identity & Access Management Patch management

Stellenbeschreibung

About the role

We are looking for a System Administrator to be the primary onsite IT contact, providing second‑level support, managing escalations and ensuring smooth operation of our Microsoft 365 and server environments.

Key responsibilities

  • Act as the main point of contact for internal IT requests and coordinate with external service providers.
  • Provide 2nd‑level support, handle end‑to‑end escalations and maintain clear system documentation.
  • Administer and continuously improve Microsoft 365 services (Intune, Entra ID, Exchange Online, SharePoint, OneDrive).
  • Manage server infrastructure and virtualization platforms (Windows Server, Linux, VMware/Hyper‑V).
  • Lead IT projects from scoping to rollout, including security, automation and tooling initiatives.
  • 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.
  • Strong hands‑on experience with Microsoft 365 and cloud‑first environments.
  • Practical experience with server infrastructure, virtualization and networking fundamentals.
  • Good understanding of IT security, IAM and patch management.
  • Proactive, structured working style and ability to work autonomously.
  • 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)
  • Windows Server
  • Linux
  • VMware or Hyper‑V
  • LAN/WAN, VPN, DNS, DHCP
  • Endpoint protection
  • Identity & Access Management (IAM)
  • Patch management

What we offer

  • Flexible working hours with home‑office and remote options.
  • Hybrid work model – at least two days per week in our Berlin office.
  • Open company culture with fair communication and regular feedback.

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Veröffentlicht vor 2 Monaten

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