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October 17, 2026
IT Systems Administrator (m/f/d)
Senior • On-site
50,000 - 75,000 EUR/yr
Jülich, Germany
Quick Facts
Role: IT Systems Administrator (m/f/d)
Work setup: Flexible core hours model (flexitime), various full-time and home-office options
Leave: 30 vacation days plus bridge days and time off between Christmas and New Year
Location: Jülich
Team: 20 employees
Description
You will implement, configure, and manage Windows and Linux servers, provide 3rd-level support, and perform system monitoring and administration for database and proxy systems. The role focuses on designing, implementing, and evaluating security hardening and information security measures in line with ISO 27001 based on IT Baseline Protection. You will also support planning and implementation of firewall/cryptography approaches as well as backup and disaster recovery concepts.
Responsibilities
Implement, configure, and administer Windows and Linux servers; handle user-related hard- and software administration
Provide 3rd-level support and perform system monitoring
Administer database and proxy systems
Conceptualize, implement, and evaluate security hardening and information security measures (ISO 27001 / IT Baseline Protection)
Create and regularly update IT security assessments and concepts
Contribute to the conception and implementation of backup and disaster recovery concepts, including firewall and cryptography solution approaches
Requirements
Completed university degree (Bachelor or FH Diplom) in Informatics, Electrical Engineering, Information Technology, or a comparable discipline
Work experience in server virtualization and server management for Windows and Linux servers
Strong knowledge of VMware vSphere plus experience with antivirus solutions, Matrix42 and/or Citrix Server and SSO (LDAP, ADFS)
Experience with automation, hardware management, and commissioning of SAN
Ideally: knowledge of ISO 27001 based on IT Baseline Protection
Expertise in project and quality management methods; experience in project management and partial IT project leadership
Consulting strength and fluent German (C2)
Enjoy working in interdisciplinary teams, including across locations, with reliable and careful working style
Benefits
Meaningful, future-oriented tasks in a modern research campus environment
Flexitime without core working hours
Multiple full-time and home-office models
30 days of vacation, free bridge days, and time off between Christmas and New Year
Pay according to experience and responsibilities (TVöD Bund pay group 11) plus annual special payment
Company pension with employer contribution
Employer-subsidized savings/benefits and Corporate Benefits
Comprehensive onboarding and diverse continuing education opportunities
Target for long-term employment after a two-year contract (initial fixed-term)
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