
The language education platform for everyone
Duolingo is a leading language education platform headquartered in East Liberty, Pittsburgh, PA, with over 500 million learners worldwide. The company offers 95 courses across 38 languages and has developed the Duolingo English Test, accepted by more than 2,000 institutions globally. Since its IPO i...
Duolingo provides comprehensive medical, dental, and vision coverage for employees and their families, along with mental health support and fertility ...
Duolingo fosters a data-driven culture with a focus on continuous improvement in language education. Its team includes language learning scientists an...

Duolingo • Pittsburgh, PA
Duolingo is seeking an AI Research Engineer, ideal for new PhD graduates, to tackle ambitious problems and collaborate on innovative solutions. This role requires a Ph.D. in computer science or a related field.
You have a Ph.D. in computer science or a related technical field, or you expect to complete your degree by August 2026. You possess a portfolio of impactful work, which may include publications, open-source projects, or AI internships that showcase your expertise and creativity. Your approach to research and development is interdisciplinary and entrepreneurial, allowing you to think outside the box and propose innovative solutions. Strong debugging and critical thinking skills are essential, as you will be solving complex problems that require a deep understanding of AI and machine learning principles.
In this role, you will solve some of Duolingo's most ambitious problems by selecting the right tools for each task. You will collaborate cross-functionally with various teams to bring your ideas to life within the product, ensuring that your contributions directly enhance the learning experience for millions of users. Your responsibilities will include identifying problems, prototyping solutions, evaluating their return on investment, and implementing the best solutions at scale. Additionally, you will share your findings both within Duolingo and with the broader research community, contributing to the advancement of knowledge in the field of AI.
At Duolingo, you will find meaningful work that contributes to our mission of making education universally accessible. We provide limitless learning opportunities and the chance to collaborate with world-class minds in the field. You will be part of a dynamic team that values creativity and innovation, and you will have the opportunity to make a significant impact on the lives of our users. We encourage you to apply even if your experience doesn't match every requirement, as we believe in the potential of diverse backgrounds and perspectives.
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