1&1 Mail & Media Applications SE

Linux System Administrator (m/f) - Kubernetes / Docker

at 1&1 Mail & Media Applications SE in Karlsruhe
Reference Id: KA-ATho-1612010


The Portal Operations department is looking for the right person to complete their Infrastructure Engineering team. We are searching for an experienced Linux System Administrator/Engineer (m/f) to help us manage all the key infrastructure services.

  • A major part of your role will be turning the ideas and plans for the infrastructure into reality, by setting up the new services, supporting the other system administrators and engineers in the department, as well as ensuring the continuous operations.
  • Daily activities also include maintaining and improving the current physical and virtual infrastructure.
  • You will contribute to the continuous automation process and provide technical expertise as part of project teams.
  • On a daily basis you will be interfacing with multiple operations teams and supporting them in their automation needs.
  • Ensure up-to-date patching of the Linux servers, that the service quality is kept at the highest level and that the KPIs are delivered in a timely manner.
  • Security is a major focus for us, so your tasks will include keeping the systems up to date, reacting fast to any security related task and making sure that all the relevant metrics are gathered.
  • You will be an important part of the 24/7 on-call rotation.

Your profile

We are looking for a flexible person with an extensive background in Linux systems administration (preferably Debian) within multi-server environments.

  • Strong virtualization experience - Kubernetes/Docker infrastructure experience is a plus.
  • BASH scripting skills are a must, as well as in at least one of Python, Ruby or Go.
  • Solid understanding of firewalling and routing, and previous experience with at least one of Puppet, Chef, Ansible, SaltStack, CFEngine.
  • Experience with GIT, as well as a good understanding of RAID and file systems (XFS, EXT4, ZFS).
  • Good English knowledge is a must, as well as the willingness to learn German.
apply online now

These job offers are naturally open to both male and female candidates.


United Internet AG
Zentrales Bewerbermanagement
Ernst-Frey-Straße 10
D-76135 Karlsruhe

Tel: +49 721 91374-6891