Junior Back-end Developer Python (m/f/d) - CeleraOne

Axel Springer SE
We empower free decisions

Job details

  • Full-time
  • map markerBerlin, DE
  • globeRelocation paid
  • cardRequires Work Permit
    Requires that you're a citizen or have a valid work permit / visa sponsorship to work in the country in which this position is based.
  • routeJunior
  • routeRequired language: English

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CeleraOne is one of Germany’s leading paid-content tech companies and part of Axel Springer group. We provide a complete analytics and automation platform optimized for synchronous real-time processing of people data, content, and device / machine signals of a user's customer journey on customer websites. Our technology is built for performance, scalability and the reduction of operating costs. We integrate all communication channels between content provider and end user, connecting with conventional enterprise solutions and free valuable business data from information silos. We facilitate our technology to publishing groups such as Axel Springer (Welt.de and Bild.de), Süddeutsche Zeitung, Rheinische Post, Die Zeit and many more.

We are a team of highly motivated software developers and mathematicians with diverse backgrounds. Our English-speaking team of roughly 40 members, together fostering a friendly and respectful atmosphere, where everyone has the opportunity to take over responsibility quickly. 

Your challenge

  • Design and implementation of our Python-based REST API
  • Working on our storage layer based on MongoDB
  • Working with our technology stack, which includes Pyramid, Colander, Cornice, Nginx, OpenResty, Lua, Buildout and Robot Framework
  • Supporting migration of our production cycle to a continuous integration workflow, using docker, Jenkins and Gerrit
  • Participating in Scrum activities

Main requirements

  • Education or professional programming experience or open source contributions
  • Proficiency in Python development
  • Good command of English (fluent in written and spoken)
  • Excellent problem-solving skills, creative, highly motivated self-starter and learner
  • Ability to quickly learn new technologies and new products

Nice to have

  • Experience with different Python web frameworks (e.g. Pyramid, Django, Flask) and HTTP REST APIs
  • Knowledge of relational and NoSQL databases (e.g. MongoDB, MySQL, Redis, NoSQL)
  • Experience with libraries like PyTest and Robot Framework
  • Experience with tools and technologies like docker, Cornice, Colander, uWSGI, Nginx, Linux, memcached, Git, buildout, Jenkins, Jira
  • Knowledge of Lua
  • Experience in the development of technical documentation and/or refactoring
  • Experience with agile software development frameworks


What we offer at CeleraOne

  • An environment that embraces freedom and autonomy and values team spirit and open communication. We encourage you to put forward your ideas and thoughts
  • Agile software development
  • Flexible working hours
  • A refreshing yet highly professional atmosphere in a diverse team
  • Modern tech stack (Python, C++17, ES6, Gitlab, Jenkins, JIRA, openresty, MongoDB, Redis, Memcached)
  • Central location in Berlin
  • Proportional sponsorship of public transportation ticket
  • Regular Team events
  • Benefits of the Axel Springer Group

Apply now

Sign up to apply

Or sign up to refer and earn a reward of €300