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Senior Android Engineer

Duolingo

$177,700 - $300,000
Oct 16, 2025
Pittsburgh, PA, US
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Duolingo is looking to improve the effectiveness and engagement of its core learning experience on the Android app by developing new features for short-form lessons, which is where learners spend most of their time.

Requirements

  • Strong Android software engineering experience, developing scalable production software and an excellent command of engineering fundamentals
  • Deep expertise in Kotlin and coroutines concurrency primitives
  • Proficiency in native Android development using standard tools and frameworks
  • Knowledge of Android SDK performance tools and optimization techniques
  • Experience developing and leading long-term technical strategy
  • Deep understanding of testing best practices
  • Working knowledge of modern AI tooling

Responsibilities

  • Work within our Client Platform area to create and maintain the foundational building blocks of our application infrastructure
  • Explore, prototype, and implement improvements to our existing application architecture to enable engineers to build stable, performant, and well-tested product features
  • Represent the team in architectural discussions and stakeholder conversations, serving as a bridge between Client Platform and Product feature teams
  • Foster a culture of engineering excellence and mentor engineers of all experience levels
  • Build features that make up the core of the learning experience on Duolingo
  • Work on adding new exercises that support our learners in practicing skills like recall and production in bite-sized formats
  • Create other ways to help learners build foundational skills in a new language

Other

  • Passionate about improving how we teach
  • Mentorship and collaboration with world-class minds
  • Limitless learning opportunities
  • Doing work that’s both fun and meaningful
  • The actual salary within the range is determined by many factors including but not limited to, skills, experience, education, and internal equity.