Duolingo

Duolingo Software Engineer Interview Questions

5+ questions from real Duolingo Software Engineer interviews, reported by candidates.

5
Questions
3
Round Types
3
Topic Areas
2021-2025
Year Range

Round Types

OA 2 Coding 2 Onsite 1

Top Topics

Questions

I looked through the interview logs, and it seems like Greenbird rarely posts on them; most of them are from several years ago, which is indeed outdated. Many interviews are with Karat, and not many g

I'm at my final round of interviews with Duolingo. This round will consist of Backend Code Review followed by Whiteboard followed by Pair programming. I was wondering if anyone has also went through t

LeetCode #329: Longest Increasing Path in a Matrix. Difficulty: Hard. Topics: Array, Dynamic Programming, Depth-First Search, Breadth-First Search, Graph Theory, Topological Sort, Memoization, Matrix. Asked at Duolingo in the last 6 months.

LeetCode #2365: Task Scheduler II. Difficulty: Medium. Topics: Array, Hash Table, Simulation. Asked at Duolingo in the last 6 months.

Got the email yesterday for this yesterday. Thrive is Duolingo’s internship program for sophomores. This is an all day virtual event and not sure what to expect. Anyone else going to this or have gone

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