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# Software Engineer

- **Company:** Wikimedia Foundation
- **Location:** Spain (Remote available)
- **Contract:** Permanent contract
- **Skills:** JavaScript (Programming Language), PHP (Programming Language), Automation of Tests, Code Review, Databases, Data Security, Software Design Documents, Identity and Access Management, OAuth, Open Source Technology, Software Architecture, Query Optimization, Prometheus, Software Engineering, Strategies of Testing, Data Logging, Grafana, Reliability of Systems, Backend, Rate Limiting, Kubernetes, Production Code, Wikimedia
- **Published:** August 11, 2026
- **Apply:** https://es.trabajo.org/oferta-5355-c66bd158c1f305b10a711a80c8be49f3

## About the Role

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. Qualities we are looking for: - Clear communicator: You explain complex ideas simply and foster shared understanding across engineering, product, and non-technical audiences; - Outcome-oriented: You prioritize work that delivers value to users and aligns with organizational goals. You balance ideal solutions with the constraints of scale, legacy, and user expectations; - 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 leadership: You inspire trust and progress through support, example, and thoughtful contributions. 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. Additionally, we'd love it if you have: - Experience
developing frameworks (designing for reuse, extensibility, stability, and backward compatibility); - Proficiency in PHP and JavaScript; - Familiarity with identity management, including OAuth; - Experience with Kubernetes ecosystem, including Envoy; - Experience with Prometheus and Grafana; - Experience defining and working wi

## Description

continuous improvement. Important: We are a fully remote team. Your working hours will need to overlap with UTC-2 to UTC+3 time zones to accommodate members of your team around the world. You will be responsible for: - 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


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