They have a quick turnaround for the initial technical screening.
It's a straightforward screening: You'll be screen-sharing and asked to implement and test an algorithm in Python, with time for questions afterwards.
They provide the starting code for the problem. Be prepared for some lateral thinking to find the optimal solution.
They got back to me quickly after the initial interview.
How would you unit test the algorithm?
The following metrics were computed from 47 interview experiences for the Duolingo Software Engineer role in United States.
Duolingo's interview process for their Software Engineer roles in the United States is extremely selective, failing the vast majority of engineers.
Candidates reported having very good feelings for Duolingo's Software Engineer interview process in United States.