Linux System Administrator (m/f/d).

Our job offer in Münster.

At a glance:

  • We provide our customers with high-quality hosting solutions.
  • You like to work with Linux for your life?
  • You have experience with Ansible, LVM, KVM, Zabbix and Ubuntu/CentOS?
  • You should apply right away!
Apply now

This is 23M.

23M was founded 10 years ago by two brothers from Münster. We offer professional hosting solutions to business customers. In doing so, we have grown steadily since our foundation and are still planning a lot for the future.

Our data center is located in Frankfurt am Main; the administration in Münster.

Our customers have appreciated our work for years. Why? Quite simply: They can rely on us. This is no coincidence: At 23M, we are committed to continuous development. What is good is being improved; what does not work is being replaced. In order to live up to this claim, the approaches and opinions of all employees are important. Through flat hierarchies, we ensure that good ideas always prevail.

Teamwork is not just a priority on paper at 23M. Joint events are important to us in order to grow together as a group. This starts with breakfast together or the after-work beer, and ends with the transformation of our office space into a location that rivals the clubs in Münster.

This is you.

The qualification on paper is not that important to us. It doesn't matter if you studied, did an apprenticeship or made a career change. For us it is important that you are enthusiastic about working with our Linux systems.

Knowledge of basic technologies in the Linux environment (file systems, authentication/authorization, performance measurements, service management, backup/recovery) is a must, just as important is experience in DNS, firewalling and monitoring. It's best if you've worked with CentOS before. If not, you'll be amazed at how quickly you can get up to speed with it.

In addition, you bring experience in the usual technologies:

  • Git
  • Bash
  • Ansible
  • KVM

Ideally, you will be able to work with all of these technologies. However, you don't have to have a perfect command of the work of an entire department.

It would be nice if you live in Münster or could imagine moving to this beautiful city. But like all companies, we have gained a lot of home office experience in the last two years and feel up to it.

Apply now

This is what we offer you.

We are aware that you spend a lot of your time at work. This time is far too valuable to spend doing something you don't really enjoy. That's why we try to create a place you'll love coming back to every morning.

In any case, your job at 23M will always present you with challenges, but we make sure you have all the work tools and a team to overcome them with.


Strong team

Young and motivated team, where everyone helps everyone.


Highend Hardware

Such as an iPhone incl. flat rate and a Macbook Pro.


Flexible working hours

For a better balance between professional and private needs.


Retirement provision

Company pension plan with employer subsidy.



Free drinks and refreshments (fruit, cereals, etc.)


Ideal location

You can reach us perfectly by public transport.


Workshops and Events

We cover all costs for further training, workshops and events.


Magazines and books

Is something missing? Then we immediately order what is needed.


Room for your ideas

New suggestions and ideas are met with open ears.

Interest aroused?

We look forward to receiving your application documents including salary expectations at - your contact person is Stefan Rehn. If you have any questions, please feel free to call us or drop by for a coffee.

Apply now

Note for recruiters.

As a matter of principle, we do not work with recruitment agencies.

Please refrain from calling us or sending us quotes.

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