Software Engineer - Editor Engagement
Wikimedia Foundation - San Francisco, CA

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What you'll be doing:

Your responsibilities will include, but are not limited to:
Develop new features (such as notifications and messaging) and enhance existing features for Wikimedia sites to improve editor engagement and create a purpose-driven social network
Design and develop back-end and front-end components to support MediaWiki extensions.
Develop MediaWiki core software to support new features and improve existing architecture to improve the efficiency, scalability, and stability of it.
Conduct design and code review of PHP and Javascript repository commits by other developers working on extensions.
Work to improve the tools that assist in the above process.
The skills and experience you'll need:
3+ years of experience building web applications.
5+ years experience with PHP/MySQL application development, testing and production deployment.
Experience with Javascript.
Ability to iterate quickly and meet tight deadlines.
Familiarity with version control systems (we use Git and Gerrit) and continuous integration systems.
Bachelor's degree in related field or equivalent experience.
Extra points if you have:
Extensive experience building large-scale server applications.
Experience with wikis, or other participatory production environments, and MediaWiki in particular.
Experience in the Wikipedia community (Please provide your username)
Experience contributing to a large open source project. (Please provide URLs to any existing work you may have done.)
An interest in free culture, open licenses, etc.
Expert knowledge developing and debugging in Linux/Unix (LAMP) environments.
Expert knowledge of PHP, MySQL, and other relational databases.
Experience with security implications of PHP and Ajax implementations.
Experience with cross-browser compatibility testing.
Experience with operating system internals, file systems, programming language design, compilers, distributed systems, or server architectures.
Creativity, self-motivation, and a good sense of humor
About the Wikimedia Foundation

The Wikimedia Foundation is the non-profit organization that operates Wikipedia, the free encyclopedia. Our commitment: Imagine a world in which every single human being can freely share in the sum of all knowledge. According to comScore Media Metrix, Wikipedia and the other projects operated by the Wikimedia Foundation receive more than 482 million unique visitors per month, making them the fifth-most popular web property world-wide (comScore, January 2012). Available in 282 languages, Wikipedia contains more than 21 million articles contributed by a global volunteer community of more than 100,000 people. Based in San Francisco, California, the Wikimedia Foundation is an audited, 501(c)(3) charity that is funded primarily through donations and grants. The Wikimedia Foundation was created in 2003 to manage the operation of Wikipedia and its sister projects. It currently employs 150 staff members. Wikimedia works with local chapter organizations in 39 countries or regions to advance the mission of the Wikimedia movement. Job Location(s) San Francisco, CA, US