PHP Backend Developer (f/m)

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Wikimedia Deutschland e.V. is a non-profit organisation dedicated to the dissemination of free knowledge. It was founded in 2004 and has been supporting the diverse Wikimedia projects like Wikipedia ever since. Wikimedia Deutschland promotes free access to free knowledge as a fundamental human right to education. Like its fellow Wikimedia projects Wikipedia is independent, ad-free and entirely based on volunteer contributions and donations.

Join the Wikimedia Deutschland software engineering team! We provide innovative solutions to problems that impact millions of people. We are building open source software that powers some of the most visited websites in the world and that is used by thousands of people every day. We are seeking a passionate backend developer with focus on PHP and MySQL who loves to work in an international team driven by agile software development methods and principles.

As a PHP Backend Developer you will work on programming and maintaining backend functionality of Wikidata and other services. You will be responsible for devising, implementing and testing new features in line with the product plan.

We are looking for colleagues

  • who are passionate about developing high quality PHP applications
  • who have experience with relational databases such as MySQL
  • who have a solid understanding of software design principles and techniques
  • who think that testing and continuous refactoring are success factors for good software
  • who have heard about MediaWiki and already know what it is used for
  • who are able to communicate fluently in English in a multidisciplinary team

We are offering you

  • an opportunity to have a noticeable impact on one of the most visited websites in the world
  • new and interesting challenges every day
  • an inspiring working atmosphere in a new office in the heart of Berlin
  • the possibility to constantly learn new and exciting ways how to solve problems, develop and improve software

If you feel like you’re just the right person to strengthen our team in meeting future challenges we want to know more about you!
Please submit your application including supporting documentation (CV, certificates, details of your salary expectations and possible starting date) to

Wikimedia Deutschland commits itself to the principles of equal opportunity and does not discriminate on the basis of ethnic origin, nationality, religion,
political or other opinion, gender, age, disability or sexual identity or orientation.

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