IT Administrator | IT Administrator (m/w/d)

appeleon gmbh

Sindelfingen, Baden-Württemberg, Deutschland
Published Feb 27, 2026
Full-time
Permanent

Job Summary

As an IT Administrator at appeleon, you will be responsible for the installation and operation of Java applications for both internal and client-facing projects. Your day-to-day activities will involve managing internal client and server environments across Windows and Linux systems, alongside administering firewall and network infrastructure with a focus on security. You will also manage the internal helpdesk and continuously work to improve the existing system landscape. This role is particularly attractive for those who enjoy working with modern cloud platforms and virtualization technologies. You will join a growing, dynamic team in Karlsruhe or Sindelfingen, contributing to a versatile product that allows business analysts to build applications without traditional programming. The position offers a high degree of variety, from database management to software testing, within a supportive and appreciative communication culture.

Required Skills

Education

Completed training as an IT Specialist for System Integration (Fachinformatiker für Systemintegration) or a corresponding university degree.

Experience

  • Professional experience in the operation of Java EE and Application Servers
  • Practical experience with database systems and Platform-as-a-Service (PaaS) offerings
  • Experience in managing Windows Server environments and Windows 10 clients
  • Experience in the field of software testing
  • Proven experience in network administration and IT security implementation

Languages

German (Fluent)English (Fluent)

Additional

  • The position is based in Karlsruhe and Sindelfingen. Applicants must be able to work full-time under a permanent contract.