Senior System Administrator & Onsite Lead (m/f/d)

Salary: 53.000 - 57.000 € per year

Requirements:

Completed IT training or a comparable qualification, with a solid technical foundation.

5+ years of experience in IT system administration or in a senior IT role.

Strong hands-on experience with Microsoft 365 and cloud-first environments.

Practical experience with server infrastructure and virtualization (Windows Server, Linux, VMware and/or Hyper-V), combined with solid networking fundamentals (LAN/WAN, VPN, DNS, DHCP) and the ability to troubleshoot independently.

Solid understanding of IT security fundamentals, including endpoint protection, identity & access management (IAM), and patch management, with ownership of on-site security topics such as access reviews, endpoint compliance, and coordination with external audits.

A proactive, structured way of working and comfort with a high level of autonomy.

Resilience and clarity even in dynamic environments, combined with confident communication and people skills with both technical and non-technical stakeholders.

Fluency in English and the ability to communicate in German.

Willingness to be present in our Berlin office at least two days per week.

Responsibilities:

Serve as the primary onsite point of contact for IT and represent IT interests toward internal stakeholders.

Provide 2nd-level support and manage escalations end-to-end.

Administer and continuously improve our Microsoft 365 environment (Intune, Entra ID, Exchange Online, SharePoint, OneDrive).

Manage server infrastructure and virtualization environments as well as selected third-party tools.

Lead IT projects independently, from scoping to rollout (e.g. security, automation, tooling).

Coordinate external service providers and maintain clear system documentation.

Identify and implement automation and AI-supported solutions to improve efficiency.

Gradually take on onsite leadership tasks such as mentoring, coordination, and onboarding support.

Technologies:

AI

Cloud

Hardware

Hyper-V

IAM

Support

LAN

Linux

Microsoft 365

Security

SharePoint

VPN

VMware

Windows

Office 365

Claude Code

Copilot

More:

We are a leading provider of recruiting solutions, striving to modernize the recruitment process and create an open company culture. Our team of 180 employees is committed to supporting each other and fostering a trusting environment. In addition to our great office atmosphere in Berlin, we offer benefits such as flexible working hours, a public transportation ticket or company bike, a pension plan, 30 vacation days, and modern hardware options. We believe in balancing work around personal life and ensuring an environment where communication and feedback are prioritized.

last updated 36 week of 2026