Staff Software Engineer, Infrastructure

The Wikimedia Foundation is seeking a Staff Software Engineer to join their Infrastructure team within the Product Department. This is a unique opportunity to work on technology that powers Wikipedia and its sister projects, serving billions of pageviews monthly across hundreds of languages. As an infrastructure engineer, you'll be responsible for building and optimizing MediaWiki's infrastructure capabilities, working in a remote-first environment that values collaboration and teamwork. The role involves maintaining and improving critical infrastructure systems, implementing observability solutions, and writing sustainable, high-quality code. The ideal candidate will have 8+ years of experience with large-scale applications, strong proficiency in PHP and JavaScript, and a demonstrated ability to drive cross-team initiatives. The position offers competitive compensation ranging from $134,133 to $208,254 for US-based candidates, with adjustments for other locations. The Wikimedia Foundation is committed to free knowledge for all and offers the rare opportunity to contribute to one of the world's largest knowledge-sharing platforms while working with a diverse, global team dedicated to maintaining free access to information worldwide.