Duolingo is a language learning software company founded in 2011 by Luis von Ahn and Severin Hacker. Headquartered in Pittsburgh, Pennsylvania, the company operates a freemium subscription-based model, delivering personalized language lessons through a mobile app known for its distinctive green mascot (Duo) and gamified learning approach. Duolingo went public on the NYSE in July 2021 and currently employs approximately 2,500 people across offices in Pittsburgh, New York, London, Berlin, Mexico City, and São Paulo. Beyond its core language learning product serving tens of millions of users globally, Duolingo also offers the Duolingo English Test, a standardized English proficiency assessment used by universities and employers worldwide. The company's competitive advantage lies in its commitment to making education accessible and highly engaging through data-driven personalization and game mechanics that drive daily user retention.
Duolingo cultivates a collaborative, metrics-driven culture that reflects its learning-through-engagement philosophy. The company emphasizes inclusivity and diversity in hiring, attracting engineers and product teams interested in consumer technology scale. Decision-making is grounded in data and experimentation, and the post-IPO pace reflects both growth ambitions and intentional team sustainability. Flexible hybrid work arrangements span multiple global offices.
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