Imagine a world in which every single human being can freely share in the sum of all knowledge.
Senior Software Engineer, MediaWiki
Location
Arizona + 29 moreAll locations: Arizona | California | Colorado | Connecticut | Florida | Idaho | Illinois | Iowa | New Jersey | New York | North Carolina | Ohio | Oklahoma | Oregon | Maryland | Massachusetts | Michigan | Minnesota | Missouri | Pennsylvania | Rhode Island | Tennessee | Texas | Utah | Vermont | Virginia | Washington | West Virginia | Wisconsin | Wyoming
Posted
52 days ago
Salary
$113.1K - $175.7K / year
Seniority
Senior
Job Description
Senior Software Engineer, MediaWiki
Wikimedia Foundation
• Designing, improving, and maintaining key parts of the MediaWiki stack; • Driving technical quality and operational excellence by defining and reinforcing standards in testing, observability, and system reliability; • Comfortably and autonomously creating proofs of concept, writing design documents, and breaking down complex projects into actionable tasks to support less experienced team members; • Developing and improving shared capabilities (e.g., authentication, caching, rate limiting) that enable other teams to build efficiently and consistently; • Championing key product metrics by focusing on measurable outcomes that guide our decisions and help us to evaluate success; • Leading by example in code review, decision-making, and team culture - fostering transparency, empathy, and collaboration; • Improving and automating processes for identifying, tracking, and resolving production issues; • Collaborating with the Product team and the community to ensure technical solutions align with WMF strategy, feature teams and volunteer contributor needs; • Coaching and mentoring teammates to support continuous growth and confidence in both technical and interpersonal skills.
Job Requirements
- Commitment to the Foundation's Mission and Values
- Extensive experience in backend software engineering
- Familiarity with platform or infrastructure products that serve internal or external engineering teams
- Experience with databases and event streams, including schema design, query optimization, and efficient data access patterns
- Deep understanding of software architecture, testing methodologies, and system design
- Strong experience in observability practices: setting up metrics, logging, monitoring, and alerting
- Familiarity with incident response, root cause analysis, and follow-up processes
- Experience working with CI/CD pipelines and automated test infrastructure.
Benefits
- Health insurance
- 401(k) matching
- Flexible work hours
- Paid time off
- Remote work options
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