• The Wikimedia Foundation is looking for a Senior Software Engineer to join the Editing team, reporting to product engineering management. As a product engineer, you will be responsible for building out the user-facing components for our product user experiences. In this role, you will work in a distributed environment, where we value teamwork and a consensus-oriented approach. You get to write open source code for collaborative experiences supporting a worldwide top-ten website (over a half a billion pages accessed per day), and you get to do it at a place that believes we’re all more successful when everyone has a good work-life balance.
• On the Editing Team, we support new and experienced volunteers working in 300+ languages with the tools they need to keep Wikipedia accurate and up to date. The team’s main area of focus is the flagship VisualEditor, our industry-leading rich-text editor. We’re also working on DiscussionTools for on-wiki communication, and our new project, Edit Check, an edit suggestion system to support newcomers.

You are responsible for:

• Improving Wikipedia’s contribution experience by building new functionality and fixing bugs
• Collaborating with product managers, designers, and other teams on shared projects
• Writing multilingual, accessible, and performant code using Javascript and PHP
• Building on top of the rich and complex MediaWiki API ecosystem
• Working with other engineers across teams to proactively reduce technical debt
• Instrumenting components to monitor user behavior and performance characteristics

Essentials:
Strong aptitude in algorithms and data structures is essential!

• Proven ability to collaborate in a team
• Experience in writing well-documented and maintainable code

Desirables:

• 5+ years related professional or open-source software engineering experience
• Experience in Javascript, PHP or any similar language e.g. Python
• Aptitude for writing unit and integration tests
• Aptitude for addressing feedback from security review and code review
• Aptitude for balancing architectural trade-offs

Qualities that are important to us:

• A desire to make meaningful contributions to knowledge equity, free culture, and open access
• An emphasis on communicating clearly in both synchronous and asynchronous channels
• Interest in mentoring, teaching and sharing technical knowledge

Additionally, we’d love it if you have this:

• Experience building a rich-text editor
• Experience working with internationally distributed teams or organizations
• A history of open-source contribution
• A history of editing on Wikimedia projects
• Experience working with large, legacy codebases
• Bachelor’s degree in computer science or STEM field or equivalent experience