Microsoft 365 Client System Administrator (m/f/d)

The Information Technology department provides all IT services for the Berliner Wasserbetriebe and companies in the Berlinwasser Group. Through two modern data centres and innovative communication infrastructure, IT drives the digital future.

What you'll do with us:

• Manage, configure, and administer M365 tenants (authentication and compliance) and devices in Microsoft Azure (Entra ID) and Active Directory.

• Centralized software distribution (e.g., OpenText ZENworks, Microsoft Configuration Manager).

• Administer and troubleshoot client and server components (e.g., Windows 11, Windows Server).

• Implement security strategies and principles, including the Zero Trust Model.

• Provide second-level support in the client environment.

• Contribute to the introduction of additional M365 applications.

What you bring:

• A completed university education (Master's) in IT Security, Business Informatics, or Computer Science with relevant professional experience.

• Alternatively: A completed technical college education (Bachelor's), IT consultant, or state-certified technician in IT Security, Business Informatics, or Computer Science; additionally certified Microsoft Security, Compliance, and Identity Fundamentals and Microsoft 365 Certified: Endpoint Administrator Associate with relevant professional experience and supplementary knowledge equivalent to a Master's level.

• Product-specific training in administering client and server operating systems.

• Process knowledge (ISO 9001, 20000, 27001, ITIL V4).

• Detailed knowledge of the structure and functionality of Microsoft Azure for Windows client systems and mobile devices.

• Ability to identify threat vectors and data breaches.

• Customer orientation, strong communication and analytical skills, and team spirit.

Compensation:

We offer remuneration in pay group 12 according to the Collective Agreement for Utility Companies (TV-V). Depending on personal qualifications, a lower pay group may apply.

The position includes on-call duty.

Good reasons for a career with us:

• Continuously evolving technologies for the Berlin water cycle.

• Active research to expand environmental protection.

• Meaningful tasks with responsibility and team spirit.

• Diverse career prospects and support (e.g., Female Leadership Programme, individual development plans, internal training opportunities).

• Work-life balance: 39-hour work week, 30 days of holiday per year, up to 60% remote work each quarter based on role, various working models (e.g., sabbatical, flexitime, 10 additional leave days through salary conversion, etc.), company pension scheme (VBL), asset-building benefits (VWL), subsidy for the Germany ticket job, corporate benefits for employees, 39 weeks of continued salary payment in case of illness, company health management (including bike leasing), professional employee counselling services.

Application Information:

• Persons with disabilities will be given preference if equally qualified.

• We are committed to equal opportunities and the professional advancement of women, hence we particularly welcome applications from women.

• Applications from people with a migration background are explicitly encouraged.

• Applications with different educational qualifications will be considered on a case-by-case basis and may be recognised based on previous knowledge and professional experience.

Your Application:

Please apply with your complete application profile (cover letter, CV, certificates, and if applicable, proof of disability) by 09.12.2026, quoting the Job ID, via our career site.

Interviews are expected to take place from week 2.