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September 16, 2026

IT Systems Administrator

Mid • Hybrid

55,000 - 65,000 EUR/yr

Essen, Germany

Quick Facts

IT Systems Administrator for IT/OT operations in a critical infrastructure (KRITIS) environment.

Description

You will operate and continuously improve network and process control technology and the company’s Operational Technology (OT). You will administer the IT/OT infrastructure, implement planned solutions, troubleshoot incidents, and ensure all work complies with security and compliance requirements.

Responsibilities

  • Operate and further develop network and process control technology and OT for a critical infrastructure (KRITIS) company.
  • Administer the IT/OT infrastructure; design future-oriented solutions; plan and independently implement projects.
  • Implement software and hardware solutions; perform maintenance and updates.
  • Systematically analyze faults/incidents and implement lasting fixes.
  • Evaluate all activities against applicable security and compliance requirements.
  • Create and maintain technical documentation to support safe and stable operations.

Benefits

  • Days off
  • Company pension plan
  • Bike leasing
  • Free employee parking
  • Nature-oriented working environment

Requirements

  • Completed vocational training as a Fachinformatiker/in with relevant professional experience, or an equivalent qualification.
  • Experience in some areas such as Active Directory, VMware, IT/OT Security, networking, firewall, PKI, backup, RADIUS, PowerShell, and working with physical servers.
  • In-depth knowledge of Windows system environments.
  • Ideally experience in process control engineering (Simatic PCS7).
  • Flexibility, technical affinity, and strong teamwork.
  • Class B driver’s license; living nearby and ability to reach operational sites at short notice during on-call duty.

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