Senior Python Developer (m/f/d)

bei unserer Tochtergesellschaft 1&1 IONOS SE in Berlin
Kennziffer: BE-PrBr-1909030


With more than eight million customer contracts, 1&1 IONOS is the leading European provider of cloud infrastructure, cloud services and hosting services. From VPS to bare metal servers to high-end IaaS solutions: 1&1 IONOS offers medium-sized and large companies all the products they need to build their hybrid or multi-cloud environments and is the only IaaS cloud computing provider in Germany with its own code stack. With over 90,000 servers, 1&1 IONOS operates one of the world's largest and highest quality IT infrastructures. In Crisp Research's Cloud Vendor Universe, 1&1 IONOS has repeatedly been recognized as one of the leading providers of cloud platforms.

The Enterprise Cloud of 1&1 IONOS is the "Cloud - Made in Germany" with self-developed, data protection-compliant IaaS platform for companies, system houses/integrators and managed service providers. It is flexibly scalable and offers free 24/7 support by qualified system administrators. During operation, the capacity of all components can be adapted to current requirements thanks to Live Vertical Upscaling.

1&1 IONOS was created in 2018 from the merger of 1&1 Internet with the Berlin-based IaaS provider ProfitBricks and is part of the listed United Internet AG. For our location Berlin, Deutschland we are looking for a Senior Python Developer.

  • Help us run and improve our internal cloud management tool: administration, orchestration, reports, capacity management - you name it.
  • Interact with all departments to assess their requirements for business solutions and work with them on continuous improvement.
  • Work in a small and effective agile team, managing code reviews.
  • Planning and completing projects independently and keeping related documentation up to date.

Ihr Profil

  • Passion to develop testable and maintainable software.
  • Interest in code review as an opportunity to learn and exchange.
  • Drive towards atomic Git commits that are self-explaining.
  • Fluent in Python 2 and/or 3 and its ecosystem (5 years experience).
  • Experience with one or more web-frameworks and ORMs, preferably Django.
  • Passion to fight technical debt.
  • Experience with Git, rebasing, interactive rebasing.
  • Knowledge in software testing and desire to write tests and continuously increase test coverage.
  • Expertise with SQL, preferably PostgreSQL.
  • Basic understanding of JavaScript, jQuery, HTML, CSS.
  • Familiarity with Linux, ideally Debian.
  • Self-initiative, independent recognition and assessment of problems and the raising of suggestions for improvements.
  • Bonus: Experience with Ansible, Debian packaging, CSS and Bash scripting.
  • Bonus: Working with SCRUM or other agile methodologies.
  • Understanding of Change and Release Management in terms of ITIL is a plus.
  • Fluent in verbal and written English, good knowledge of German is a plus.

I want to apply now via online application form

Aus Gründen der besseren Lesbarkeit wird die männliche Sprachform verwendet. Dies impliziert jedoch keine Benachteiligung anderer Geschlechter, sondern soll im Sinne der sprachlichen Vereinfachung als geschlechtsneutral zu verstehen sein.


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

Tel: +49 721 91374-6891