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OpenStack Job Board

Published on March 29
Wikimedia Foundation


The Wikimedia Foundation is looking for a Software Engineer to join the MediaWiki Platform Team. The MediaWiki Platform Team is responsible for maintenance and development of the MediaWiki core, the platform that powers Wikipedia and other Wikimedia Foundation websites. MediaWiki is a PHP/MySQL web application that has been incrementally developed over the past 15 years to become a richly featured wiki engine, and the basis for hundreds of extensions and skins. MediaWiki is an open source product with a vibrant volunteer community.

We are looking for a Software Engineer who will work collaboratively with our feature teams to provide great new features to our users. You will also work with SRE and Performance teams to ensure MediaWiki continues to scale and remain highly available for the millions of users who depend on us.

You are responsible for:

  • Design, develop, test, and deploy new features and improvements to MediaWiki.
  • Triage, diagnose, and fix reported bugs in MediaWiki
  • Maintain extensions to the PHP engine.
  • Partner with Foundation staff and volunteers on software design, development, review, testing and evaluation.
  • Help identify and implement best practices in engineering processes across the team.
  • Work and communicate effectively within a small team distributed across multiple time zones.

Skills and Experience:

  • 4+ years related professional experience in functional programming or OOP
  • Openness to working with a diverse and geographically distributed team
  • Proficient in PHP and MySQL
  • Knowledge of developing and debugging in Linux/Unix environments
  • Experience working within agile frameworks, focusing on iterative development
  • Enjoy writing unit and integration tests, proactively addressing security and code review feedback, and thoughtfully balancing architectural tradeoffs  

Additionally, we’d love it if you have:

  • Experience with Linux, memcached, Redis, content distribution networks
  • Experience with C/C++, JavaScript or Go
  • Familiarity with web protocols and standards: HTML, CSS, HTTP
  • Experience with open source software development
  • Experience with MediaWiki or Wikimedia projects

About the Wikimedia Foundation

The Wikimedia Foundation is the nonprofit organization that operates Wikipedia and the other Wikimedia free knowledge projects. Our vision is a world in which every single human can freely share in the sum of all knowledge. We believe that everyone has the potential to contribute something to our shared knowledge, and that everyone should be able to access that knowledge freely. We host Wikipedia and the Wikimedia projects, build software experiences for reading, contributing, and sharing Wikimedia content, support the volunteer communities and partners who make Wikimedia possible, and advocate for policies that enable Wikimedia and free knowledge to thrive. 

The Wikimedia Foundation is a charitable, not-for-profit organization that relies on donations. We receive donations from millions of individuals around the world, with an average donation of about $15. We also receive donations through institutional grants and gifts. The Wikimedia Foundation is a United States 501(c)(3) tax-exempt organization with offices in San Francisco, California, USA.

As an equal opportunity employer, the Wikimedia Foundation values having a diverse workforce and continuously strives to maintain an inclusive and equitable workplace. We encourage people with a diverse range of backgrounds to apply. We do not discriminate against any person based upon their race, traits historically associated with race, religion, color, national origin, sex, pregnancy or related medical conditions, parental status, sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, genetic information, or any other legally protected characteristics.

If you are a qualified applicant requiring assistance or an accommodation to complete any step of the application process due to a disability, you may contact us at [email protected] or +1 (415) 839-6885.

U.S. Benefits & Perks*

  • Health Care Benefits Covered at 100%: We cover 100% of premiums for medical, dental and vision plans for all full time employees and eligible dependents
  • Wellness Reimbursement Program: Up to 1,800.00 USD per year for reimbursement for staff wellness expenses, such as gym fees, educational expenses, and more
  • Technology and Equipment Stipend: In addition to receiving a brand new laptop, monitor, & docking station, all new hires receive 600.00 USD stipend to set up their space for working virtually 
  • Professional Development Program: Up to 750.00 USD reimbursement per year to encourage continuous learning through attending conferences, courses, workshops and the purchase of educational materials 
  • 401(k) Retirement Plan: Employer match of up to 4% of employee contributions dollar for dollar with no vesting period
  • Paid Time Off: Generous paid time off policy of over 45 days, which includes: vacation days, at least one observed holiday a month, sick leave, and volunteer days
  • Flexible Schedules: Options available to balance your personal and remote-work life
  • Silent Fridays: No scheduled meetings so you can get caught up at the end of each week
  • New Parent Leave: Fully paid new parent leave for seven weeks plus an additional five weeks for pregnancy, and flexible options as you embark on your return to work
  • Fertility and Adoption Reimbursement Plan: Reimburses staff up to 5,000.00 USD in expenses per year, with a lifetime maximum of 10,000.00 USD
  • Assistance for those unexpected life events: Long and short term disability, life insurance, and an employee assistance program
  • Pre-tax Savings Plans: Generously funded health savings accounts (HSAs), pre-tax contribution options for health care, child care & elder care, public transportation and parking expenses

*Please note that for remote roles located outside of the U.S., we defer to our PEO (Professional Employee Organization) to ensure alignment with local labor laws.


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