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# Software Engineer

- **Company:** The Wikimedia Foundation, Inc
- **Location:** San Francisco, CA, United States (Remote available)
- **Experience:** Expert
- **Salary:** $92,000.0 - $144,000.0
- **Contract:** Permanent contract
- **Skills:** JavaScript (Programming Language), PHP (Programming Language), Relational Databases, Network Protocols, Open Source Technology, Enterprise Software Applications, Wikimedia
- **Published:** July 30, 2026
- **Apply:** https://www.workingnomads.com/job/go/1761524/

## About the Role

* 1+ years related professional experience
 * Experience building and maintaining large-scale applications
 * Proficiency in PHP, Javascript 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

## Description

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, everywhere.

In 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.


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