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Wikimedia Foundation Logo

Software Engineer, MediaWiki Interfaces

Wikimedia Foundation

$92,267 - $144,201
Nov 25, 2025
Remote, US
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The Wikimedia Foundation is seeking a Software Engineer to enhance the MediaWiki platform's web API and integration interfaces, aiming to improve how users access, edit, and consume knowledge efficiently and reliably.

Requirements

  • Proficiency in PHP and JavaScript, or a willingness to learn and work with both;
  • Understanding of HTTP and web application architecture;
  • Familiarity with observability and testing practices.
  • Experience contributing to open-source software;
  • Familiarity with MediaWiki;
  • Interest in API-first development or improving developer experience.
  • Professional experience in large scale web platforms.

Responsibilities

  • Designing, developing, and maintaining key parts of the MediaWiki stack;
  • Writing clean, well-documented, and maintainable code;
  • Participating in code reviews, design discussions, and technical planning;
  • Investigating and resolving production issues with support from other engineers;
  • Contributing to the adoption and advocacy of API-first development, and influencing best practices in system design, SLOs/SLAs, and OpenAPI Specification;
  • Contributing to improving observability (metrics, logging, monitoring) and reliability of our systems.
  • Working with other engineers to improve the development workflow

Other

  • Commitment to the Foundation's Mission and Values;
  • Clear communicator: You can explain your ideas simply and adapt your communication to different audiences;
  • Outcome-oriented: You prioritize work that delivers value to users and aligns with organizational goals, breaking it into manageable steps to deliver incremental value;
  • Accountable: You own your work end-to-end and help establish a culture of responsibility and follow-through;
  • Candid and respectful: You offer feedback directly, constructively, and with care - and invite the same in return. You support growth by challenging ideas, not people;
  • Collaborative: You enjoy working with others to solve problems and are open to feedback.
  • Experience working in a remote, distributed team;