Software Engineer III, Product Safety & Integrity

Summary

The Wikimedia Foundation is seeking a software engineer to join the Product Safety and Integrity Team. This role involves developing tools to identify and mitigate abuse across Wikimedia projects, designing privacy-conscious systems, and collaborating with cross-functional teams to create solutions that balance safety and freedom.

Responsibilities

• Proactively develop and maintain tools for community abuse identification and prevention.
• Design and implement privacy-conscious systems that detect abusive behavior while minimizing false positives and respecting user anonymity.
• Adapt abuse detection and mitigation strategies in response to changes in privacy standards, networking protocols, and platform architecture.
• Collaborate 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.
• Instrument and measure the impact of anti-abuse measures across Wikimedia projects.

Requirements

• 1+ years of related professional experience.
• Experience building and maintaining large-scale applications.
• Proficiency in PHP, JavaScript, or similar programming languages.
• A strong foundation in security principles.
• Experience in driving cross-team objectives and user/product impact.

Qualifications

• Collaboration, humility, and a shared commitment to Wikimedia's vision of free knowledge for all.
• Clear and empathetic communication in both synchronous and asynchronous settings.
• Familiarity with abuse fighting or security concerns.
• A history of open-source contributions.

About The Wikimedia Foundation

The Wikimedia Foundation is a nonprofit organization that operates Wikipedia and other Wikimedia free knowledge projects. Our mission is to provide free access to knowledge for everyone worldwide. We rely on donations from individuals and organizations to fund our operations. The Wikimedia Foundation is remote-first and offers competitive salaries based on location and experience. Applicants from the listed countries and states are eligible to apply. For more information on benefits and perks, please refer to the job description.