Senior System Administrator

Quick Facts

• Position: Senior System Administrator (unbefristed)

• Experience: Minimum 3 years

• Salary: Starting from €50,000 per year

• Work model: Partly home office possible

Description

You will manage and maintain IT infrastructures across Windows and—optionally—Linux, including server/client care, system migrations, and introducing new infrastructure and software. The role focuses on structured work, error analysis, and reliable operation of servers and networks using modern tools like Proxmox, Hyper-V, M365, OPNsense, and UniFi.

Responsibilities

• Plan and implement system migrations

• Perform error analysis and incident resolution

• Maintain Windows and Linux servers and clients

• Plan, operate, and maintain IT infrastructures

• Introduce new infrastructure, servers, and software

• Take on additional tasks

Requirements

• Minimum 3 years of professional experience

• Training as a Fachinformatiker, a Computer Science degree, or equivalent system administrator/Fachinformatiker experience

• Hands-on familiarity with Proxmox, Hyper-V, M365, OPNsense, and UniFi

• Experience with Windows Server (Hyper-V, Active Directory, print server, file server, DFS)

• Strong knowledge of general systems and network administration

• Linux experience (optional)

• Structured and independent work style

• Communication skills

• Friendliness, honesty, and reliability

• Teamwork mindset

• Driver’s license class B

• German at least level C1; English is an advantage

• Desirable: training/apprenticeship; 1 year IT support; 3 years Windows client experience

Benefits

• Competitive salary starting from €50,000/year

• Unbefristed employment

• Job car

• Flat hierarchies and a dynamic, engaged team

• Good work-life balance; overtime very rare

• Flexible work with home office options

• Company-sponsored training

• Additional vacation days

• Free drinks and parking

• Employee discounts and corporate benefits

• Modern office building in Grevenbroich