Software Engineer III, Product Safety & Integrity

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.

Responsibilities:

• 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

Requirements:

• 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
• 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
• Familiarity with abuse fighting or security concerns
• A history of open source contributions