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Dieser Job ist am 19/07/2026 abgelaufen. Er nimmt keine Bewerbungen mehr entgegen.
System Administrator
Haystack
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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