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Senior Software Engineer, MediaWiki

🌐 Remote💼 Full-time💰 $113,082–$175,725🗓 2026-05-29 → 2026-07-30

Core

Building and maintaining the core MediaWiki platform (authentication, notifications, media management) that powers Wikipedia and sister projects for hundreds of millions of users.

Role type

Senior Software Engineer (Backend/Platform)

Builds

Core MediaWiki stack, shared capabilities (auth, caching, rate limiting), and infrastructure for feature teams.

Domain

Open-source web platforms, high-scale distributed systems

Deliverable

production ML models | product features | infrastructure

Required skills

Backend software engineering, database design and query optimization, event streams, software architecture, testing methodologies, system design, observability (metrics, logging, monitoring, alerting), incident response, CI/CD pipelines

Preferred skills

Framework development, PHP, JavaScript, identity management (OAuth), Kubernetes (Envoy), Prometheus, Grafana, SLA/SLO definition, MediaWiki experience, open-source contributions

Technologies

MediaWiki, PHP, JavaScript, Kubernetes, Envoy, Prometheus, Grafana, OAuth

Responsibilities

Designing and maintaining key parts of the MediaWiki stack; driving technical quality and operational excellence; creating proofs of concept and design documents; developing shared capabilities; championing product metrics; leading code reviews and team culture; automating production issue resolution; collaborating with product and community teams; coaching and mentoring teammates.

Seniority

Senior, hands-on IC with mentorship responsibilities

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