Software Engineer, MediaWiki Interfaces

This role offers a chance to work on large-scale, mission-driven software while deepening your technical expertise and contributing to systems used globally. You’ll collaborate with other engineers and product managers to improve performance, reliability and the responsible adoption of our APIs.

Important: We are a fully remote team. Your working hours will need to overlap with UTC-4 to UTC+2 time zones to best accommodate members of your team around the world.

You will be responsible for:

• 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.
• Collaborating with the Product team and the Wikimedia community to ensure technical solutions meet user needs.
• Working with other engineers to improve the development workflow

Qualities we are looking for:

• 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.

Requirements

• Commitment to the Foundation's Mission and Values;
• Bachelor's + 2 years of related experience or equivalent work experience;
• Proficiency in PHP and JavaScript, or a willingness to learn and work with both;
• Familiarity with HTTP and web application architecture;
• Familiarity with observability and testing practices.

Additionally, we’d love it if you have:

• Experience contributing to open-source software;
• Familiarity with MediaWiki;
• Experience working in a remote, distributed team;
• Interest in API-first development or improving developer experience.
• Professional experience in large scale web platforms.