Customer support: Primary point of contact for customers via phone, email and remote access.
Independent acceptance, processing and documentation of service requests and incidents.
Technical support and system monitoring: Analyze, prioritize and permanently resolve incidents in the areas of virtualization, Windows and Linux server services.
Administration of server hardware, storage systems, operating systems and networks.
Proactive monitoring of customer systems and regular health checks.
Identification of root causes and derivation of improvement measures.
Planning, execution and control of managed services within agreed SLAs.
Participation in change management and consistent documentation of all processes.
Preparation of service reports and support in Continual Service Improvement (CSI).
Close collaboration with customers and internal teams to ensure stable, secure and high-quality service delivery.

Completed IT training (e.g., IT specialist for system integration) or comparable qualification.
Career changers with relevant practical experience are also welcome.
You are curious, enjoy developing further and want to continuously expand your knowledge in a modern IT environment.
Professional and friendly demeanor when dealing with customers and colleagues is a matter of course for you.
You enjoy working in a team but can also take on tasks independently.
You are proficient with Windows (client/server) and Linux systems.
Terms like DNS and DHCP are familiar to you, and you have a solid basic understanding of networking that you can further develop with us through practical experience.
Good practical experience with VMware technologies (Broadcom / Omnissa) as well as knowledge in cloud environments.
You are interested in IT security topics and actively apply this knowledge in daily work or continuously deepen it.
Enthusiasm for new technologies and trends, especially in cloud and security, combined with willingness for continuous training.
Very good German language skills, both spoken and written.

Secure workplace: Permanent contract in a stable IT environment.
Fair compensation: Your commitment is rewarded appropriately.
Work-life balance: 30 days of vacation, flexible working hours and the possibility to work hybrid.
Locations & accessibility: Offices in Frankfurt and Hennef – well connected by train and car, parking included.
Work environment: Modern IT equipment, complimentary drinks and short distances to your colleagues.
Training: Access to vendor certifications and real projects that advance your professional skills.
Team: An open, helpful environment where everyone matters – whether trainee or senior.
Extras: Subsidy for capital-building benefits and joint events that are also fun.

IT System Administrator

Key skills