Senior Software Engineer, Backend

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! At Duolingo, you’ll join a team that cares about finding innovative solutions to complex technical problems, 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. Join our life‑changing mission to develop education for our half a billion (and growing!) learners around the world. Observability Team The Observability team builds infrastructure and tools that give engineers confidence and clarity at Duolingo scale.

We create monitoring, alerting, and debugging experiences that help teams ship faster and respond to incidents effectively. In this team, you'll build instrumentation frameworks, deploy telemetry infrastructure, design dashboards, and connect signals to catch issues before they impact learners. We're looking for engineers passionate about developer experience and reliability.

Collaborate on software projects with product design and backend aspects Develop, release, and maintain backend services and/or infrastructure Lead individual project priorities, milestones, and ensure we're always shipping Qualifications You have: A Bachelor’s degree in Computer Science or a related technical field Strong competencies in data structures, algorithms, and software design Experience programming in Java, Python, or Kotlin Solid understanding of one or more database technologies Exceptional candidates will have: Industry experience building high‑traffic APIs using public cloud providers Experience with industry observability technology, such as OpenTelemetry, Grafana, Prometheus, or DataDog Salary Salary Range: $182,800 — $247,300 USD We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation, please contact [email protected]. EEO Statement Duolingo is proud to be an Equal Employment Opportunity employer.

We do not discriminate based upon race, religion, color, national origin, gender (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, or other applicable legally protected characteristics. #J-18808-Ljbffr