Software Engineer III, Product Safety & Integrity
Remote / Online - Candidates ideally in
San Francisco, San Francisco County, California, 94199, USA
Listed on 2026-09-12
San Francisco, San Francisco County, California, 94199, USA
Listing for:
Social Impact Guide
Remote/Work from Home
position Listed on 2026-09-12
Job specializations:
-
Software Development
Software Engineer, Full Stack Developer, Backend Developer
Job Description & How to Apply Below
17 hours ago Experience
Mid-Level---For the full description, please visit the official website.
** Summary
* * The Wikimedia Foundation is looking for a software engineer to join the Product Safety and Integrity Team. Engineers at the Wikimedia Foundation get to work on technology that truly makes a global impact — powering Wikipedia and its sister projects, which serve billions of pageviews every month across hundreds of languages. It is a rare opportunity to contribute to one of the largest knowledge-sharing platforms in the world, and to help protect free access to information for everyone, this role, you will work in a mostly-remote environment.
As a software engineer, you will work closely with the team to:
* Proactively develop and maintain tools that empower communities to identify, mitigate, and prevent various forms of abuse across Wikimedia projects.
* Design privacy-conscious systems that detect behavioral patterns indicative of abuse while minimizing false positives and respecting user anonymity.
* Continuously adapt abuse detection and mitigation strategies in response to changes in browser privacy standards, networking protocols, and platform architecture.
* Collaborate cross-functionally with product managers, designers, and researchers to create holistic, human-centered solutions that balance safety and freedom.
* Write resilient, maintainable systems and high-quality code with a focus on long-term sustainability.
* Implement observability to maintain high levels of quality and system stability.
* Instrument and measure the impact of anti-abuse across Wikimedia projects.
*
* Skills and experience:
*** 1+ years related professional experience
* Experience building and maintaining large-scale applications
* Proficiency in PHP, Java script or similar
* Proficiency in relational databases
* Strong foundation in security principles
* Experience in driving cross-team objectives
* Experience in driving user and product impact
** Qualities that are important to us:
*** Collaboration, humility, and a shared commitment to Wikimedia’s vision of free knowledge for all which guides everything we build
* Communicate with clarity and empathy, both in synchronous and asynchronous settings
** Additionally, we'd love it if you have:
*** Familiarity with abuse fighting or security concerns
* A history of open source contributions#### 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…
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