IT System Engineer / System Technician 60% - 100% (m/f/d)

30 October 2026
60 – 100%
Wallisellen

Job summary

KastGroup AG specializes in Cyber Security and network infrastructure. Join a dynamic team focused on innovative solutions and personal growth.

Tasks

Build and manage new infrastructures independently.
Plan and maintain client/server systems efficiently.
Provide 2nd and 3rd level support as needed.

Skills

Experience in Linux, Windows, virtualization, and networking.
Strong knowledge of Docker, Kubernetes, and monitoring tools.
Familiarity with Office365 and self-hosting solutions.

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About the job

Company Description

The KastGroup AG, headquartered in Wallisellen, specialises in the fields of Cyber Security and secure network infrastructure. Since 2014, we have been supporting organisations of various sizes with our services in identifying and achieving appropriate security goals or expanding and optimising existing network infrastructures.

Our expertise as well as our specialist know-how make us a competent partner and our team philosophy the ideal employer for currently 25 employees. We grow together with new challenges, bring passion and do not just do a job, but deliver real work.

Job Description

Are you looking for a place where you can prove your talent and are ready to contribute your skills in a dynamic company? Do you use your free time for your own infrastructure projects and keep yourself informed about the latest technology trends? Would you like to independently design infrastructures and develop unconventional and creative solutions?

If you can answer (almost) all questions with "Yes" and have already gained or would like to gain experience and knowledge in the following areas, then you are exactly the person we are looking for to expand our existing team!

Linux / Windows Administration
Virtualisation (VM, Proxmox, VMWare)
Network (OPNsense, Mikrotik, Fortigate FW)
Container (Docker, Kubernetes / K8s)
Monitoring (PRTG)
Windows AD and other Windows Server Services
Office365 Administration
Self-Hosting & On-Premises Hosting

Your Tasks

Complete setup of new infrastructures
System management
Planning and maintenance of client / server systems
Creation of documentation
2nd and 3rd level support
Experience in the field of Cyber Security can also be gained upon request

Qualifications

Additional Information

Flexible working models
Home office by arrangement
25 days (5 weeks) holiday per year
Paid training & certifications
Free coffee as well as various soft drinks
Team events and after-work aperitifs (of course voluntary)
Pool table, table football & game console available
Modern office within a short walking distance to Wallisellen station
Ergonomic workplace with electric standing desk
Flat hierarchies and co-determination rights

How to apply

Please submit your application directly via our online form.

If you have any questions about the position or our company, please feel free to note them directly in the comment field of the online application form.

If a personal conversation is more important to you, you can reach our HR specialist, Ms Kast, on Tuesdays and Wednesdays at the telephone number +41 44 521 28 65.