The Wikimedia Foundation is looking for a Senior Software Engineer, Android to support the App Experience and App Growth teams within the Core Experiences engineering group. It’s important to state that we are a fully remote team at a general organisation. Identifies risks early, and helps the team make pragmatic tradeoffs across quality, velocity, maintainability, and user impact. Implementation – Improving the mobile Wikipedia product experiences that serve a global, multilingual audience on Android. Leads system design for medium-sized projects and can design and build accessible, adaptable, scalable components. Quality, testing and observability – Consistently builds software that is easy to test, observe and debug. Instruments features that enable deeper analysis by Product Analysts. Culture and standards – Complies with team standards in code review, technical design, testing, documentation, accessibility, observability, and decision-making – fostering transparency, empathy, and collaboration. Qualities that are important to us: Bachelor’s and 5-10+ years related professional experience with significant experience building Android applications Strong professional experience and proficiency with Kotlin, XML, Jetpack Compose, and familiarity with architectural patterns in Android Experience of Android performance optimisation techniques to ensure smooth, responsive, and high-performing applications under a variety of conditions. Additionally, we would love it if you have: Experience adding webview-wrapped experiences to existing native mobile apps (iOS or Android)



Experience building mobile games or other interactive mobile experiences. Experience with data science, machine learning, and/or AI (e.g., familiarity with prompt engineering, Jupyter notebooks experience, etc.) Familiarity with Wikipedia / wikitext / markdown editing or content management systems (e.g., MediaWiki, Drupal, WordPress) Experience with leveraging agentic coding to scale the work of small engineering teams. Bachelor’s, master’s, or doctorate degree in computer science, management information systems, or STEM field (or equivalent certification) Prior experience with MediaWiki or Wikimedia projects. The Wikimedia Foundation is the nonprofit organization that operates Wikipedia and the other Wikimedia free knowledge projects. We host Wikipedia and the Wikimedia projects, build software experiences for reading, contributing, and sharing Wikimedia content, support the volunteer communities and partners who make Wikimedia possible, and advocate for policies that enable Wikimedia and free knowledge to thrive. The Wikimedia Foundation is a United States 501(c)(3) tax-exempt organization with offices in San Francisco, California, USA. The Wikimedia Foundation is a remote-first organization with staff members including contractors based 40+ countries
* . Our non-US employees are hired through a local third party Employer of Record (EOR) and must have current work authorization in their location. (*citizens/permanent residents only) If you are a qualified applicant requiring assistance or an accommodation to complete any step of the application process due to a disability, you may contact us at recruiting@wikimedia.

📌 Senior Software Engineer (España)
🏢 Wikimedia Foundation
📍 España