Software Engineer III, Product Safety & Integrity

The Wikimedia Foundation is looking for a software engineer to join the Product Safety and Integrity Team. In this role, you will work closely with the team to develop tools that prevent abuse across Wikimedia projects, design privacy-conscious systems, and collaborate with various stakeholders to create effective solutions.

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