Duolingo

Straightforward OA and LC questions. Standard Codesignal General Coding Assessment. As for LC, just basic graph traversals and string/array manipulation should be enough. Behavioral was a little short though, so didn't get to share much. Overall,

Consisted of a CodeSignal OA (you can share previous scores). Then, a one-hour technical interview through Karat. The question difficulty was medium. The second technical interview was with a Duolingo SWE, and the question level was medium-hard.

Online coding assessment and then phone chat with recruiter. After that, there are a few rounds of interviews, including a pair programming section where you debug a piece of the codebase.