Moderator Tools Software Engineer

The Wikimedia Foundation is seeking a Product Software Engineer to join the Moderator Tools team. This remote-first role focuses on building and enhancing open-source tools that empower Wikipedia's global community of moderators and patrollers. You will help develop and maintain user-facing components, supporting collaborative experiences for millions of users, all while working in a consensus-driven and inclusive environment that values work-life balance and knowledge equity.

Job Overview

As a Software Engineer on the Moderator Tools team, you will contribute to the design and implementation of moderation interfaces, improve content review workflows, and extend the capabilities of Wikimedia’s platform. You will collaborate with cross-functional teams to deliver accessible, high-performance features that support volunteer moderators across Wikimedia projects.

Key Responsibilities

• Develop and enhance centralized moderation tools for organizing and streamlining moderation activities.
• Improve patrolling interfaces and implement new functionalities for Special:RecentChanges, Special:Watchlist, and related tools.
• Maintain and fix bugs in team-owned codebases, including the Automoderator extension and The Wikipedia Library.
• Collaborate with product managers, designers, and engineers on shared projects and initiatives.
• Write multilingual, accessible, and performant user interfaces using JavaScript, PHP, VueJS, and CSS.
• Leverage and extend existing Design System Library components and MediaWiki APIs as needed.
• Write unit and integration tests, address security feedback, and proactively reduce technical debt.
• Instrument components for monitoring user behavior and performance.

Required Skills & Qualifications

• 3-5 years of professional experience in software development, with strong frontend and backend fundamentals.
• Proficiency in JavaScript and experience with PHP or Python.
• Ability to convert design mockups into functional, accessible components.
• Experience building high-performance, well-documented, and readable code.
• Strong collaboration and communication skills in distributed, remote environments.
• Commitment to knowledge equity, free culture, and open access.
• Experience with accessibility and performance best practices in web development.
• Interest in mentoring and sharing technical knowledge.