Published on:

10.12.2025

IT-Administrator (part/full time)

Start from:

February 2026

Part time

Location:

Jena / Hybrid

Your Tasks
  • Administration and further development of our entire IT infrastructure
  • Microsoft 365 administration (Exchange, SharePoint, Teams, Entra ID, Endpoint Management)
  • Backup management based on Linux / Synology
  • Setup, maintenance, and security of clients, user accounts, and access rights
  • IT security & data protection:
    • Firewall configuration and network hardening
    • Detecting and mitigating cyberattacks
    • Implementation of data protection and security policies (GDPR)
    • Patch, vulnerability, and risk management
  • Fast analysis and efficient resolution of technical issues (First & Second Level Support)
  • Proactive monitoring, thorough documentation, and continuous optimization of our IT systems
  • Conducting IT security trainings as well as developing and implementing awareness programs for employees
  • Planning, setup, and operation of an in-house server network, including structuring, implementation, and continuous improvement
Your Qualifications
  • Several years of hands-on experience in administering the systems listed above
  • Excellent knowledge of:
    • Microsoft 365 / Entra ID
    • Linux, especially for backup strategies and servers
    • Synology NAS / DSM
    • Firewalls & network security
  • High execution speed and a hands-on mentality
  • Structured, reliable, and service-oriented way of working
  • Enjoys optimizing systems and making quick decisions
What We Offer
  • Work in a modern high-tech environment
  • Flexible working time models (part-time or full-time)
  • Direct areas of responsibility and plenty of creative freedom
  • Short decision-making paths, flat hierarchies
  • Training opportunities, especially in IT security
  • Flexible working hours
  • A collegial and appreciative team
About us

Photonics Precision Engineering specializes in optical system design and engineering services. Our expertise include tracing rays, field propagation, system tolerance analysis, project management, and prototype development. We are dedicated to going the extra mile for our customers. At Photonics Precision Engineering, we hold teamwork, passion, joy at work, and excellence as our core values. We seek candidates who enjoy creatively solving complex tasks both independently and collaboratively. We highly value engaging in challenging discussions, sharing knowledge, and demonstrating competence. Together, we aim for continuous improvement and personal growth.

How to Apply

This is how our application process works: