Duolingo, the company behind the popular gamified language-learning app and English-proficiency tests, employs roughly 855 people worldwide. Recent additions of nearly 100 team members have outpaced about 70 departures, indicating steady workforce growth to support product, content, and market expansion. The overall headcount mix highlights the firm’s emphasis on technology and user engagement while maintaining balanced operational support.
Engineering is the largest department with about 347 employees—just over 40 % of the workforce—underscoring Duolingo’s technology-first approach. Marketing and Product follows at 198 employees, reflecting continual investment in user acquisition, brand visibility, and feature development. Business Management (67) and Human Resources (57) provide core operational support, while Operations, Finance & Administration, and Information Technology each sit in the low-30s range. Smaller groups such as Sales & Support (28) and Quality (26), along with an "Other" category of 38, round out a diversified organizational structure that balances technical, creative, and administrative expertise.
Duolingo’s headquarters in Pittsburgh houses approximately 289 employees, accounting for one-third of total staff. A significant presence in New York City (about 187 employees) strengthens access to media, finance, and talent. Smaller hubs in Seattle and San Francisco host around two dozen employees each, while mid-sized clusters in Detroit, Boston, Los Angeles, Chicago, and Washington, D.C. range from 9 to 14 team members. Roughly 270 employees work remotely across other locations, illustrating a flexible, distributed workforce model.