Duolingo Software Engineer interview with a one-hour technical round

Duolingo·Software Engineer·Reported Nov 2025
Online AssessmentTechnical ScreenOtherEasy

Once I reached that stage, the process had a strong final-round feel. It followed a kind of superday structure, starting with an online assessment on a Zoom call and ending with a behavioral round that included a couple of STAR-style questions about my experience. The decisions felt quick and decisive.

As I progressed, the rounds looked like a shortlist process for engineers and finalists. There was a one-hour technical interview followed by an informal buddy chat. Before that, I had to sign an NDA and provide references from past employers, which made everything feel more serious and formal than the earlier steps.

In one technical conversation, the setup worked against me even though the questions weren’t insanely hard. The interviewer seemed distracted, as if they were multitasking while I wrote and explained my code. I finished the work and tried to stay engaged, but I was dissatisfied with how the interview was run. I didn’t get an offer. The main thing I took from it was that technical difficulty wasn’t the only factor. The interviewer’s level of attention mattered too.

Location: United States. Overall feedback: Positive. Offer status: No offer.

Published

Curated and edited by PracHub

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Interview at a glance

Company
Duolingo
Role
Software Engineer
Rounds
Online Assessment → Technical Screen → Other
Difficulty
Easy
Date
Reported Nov 2025

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