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Difficulty
3.5/5 — Hard
Timeline
3 to 6 weeks
Formats
Recruiter Screen
30 minutesInitial conversation to discuss background, interest in Duolingo, and role expectations.
Technical Assessment / Coding Challenge
1-2 hoursA take-home assignment or a live coding session focused on data structures, algorithms, or role-specific technical skills.
Virtual On-Site
4-5 hoursA series of interviews covering technical depth, system design, and behavioral/culture-fit questions with various team members.
Why do you want to work at Duolingo?
Connect your personal values or experiences with language learning to the company mission.
Tell me about a time you had to deal with a difficult technical challenge.
Focus on the specific actions you took to resolve the issue and what you learned.
How would you design a feature for [specific Duolingo product]?
Think about scalability, user experience, and how it aligns with the company's gamification strategy.
Familiarize yourself with the Duolingo app and its gamification mechanics.
Be ready to discuss how you handle ambiguity in a fast-paced environment.
Research the company's 'Duolingo Values' and be prepared to provide examples of how you embody them.
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