Senior Software Engineer, Backend

<p>Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission, and that’s where you come in!</p> <p>At Duolingo, you’ll join a team that cares about finding <a href="https://blog.duolingo.com/tag/engineering/?utm_source=greenhouse.com&utm_medium=referral&utm_campaign=engblog_gh_091224">innovative solutions to complex technical problems</a>, running countless experiments (300+ at a time!) with our massive user base to make data-driven decisions, and educating our users and employees alike. You’ll have limitless learning opportunities, mentorship and collaboration with world-class minds, and a variety of projects with large scopes — while doing work that’s both fun and meaningful. </p> <p>Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world.</p> <p>We’re looking for backend