What did Duolingo ask in 2025 interviews?

3 questions reported by candidates who interviewed at Duolingo in 2025. Topics include coding, system design, and behavioral rounds, aggregated from verified candidate reports on 1Point3Acres, Blind, Reddit, and more.

How hard was the Duolingo interview in 2025?

Based on candidate reports from 2025, the Duolingo interview process typically includes phone screens, coding rounds, and system design. Difficulty varies by role and team. Review the specific questions below for an accurate picture of what was asked.

Is the 2025 Duolingo interview data still relevant?

2025 interview questions at Duolingo provide valuable context for current interviews. Core problem patterns and topic areas tend to persist across years. Use 2025 data alongside the latest reports on LeakCode for the most complete picture.