Duolingo

“This one sat with me after the interview.” The rest of the author's notes on Product Manager interview at Duolingo, Onsite - Product Sense / Strategy round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“I knew the tuple key trick with sorted() so the implementation came out clean pretty fast.” The rest of the author's notes on Software Engineer interview at Duolingo, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“I went straight to impact times effort and started ranking drop-off points by volume of users lost, which felt right but I skipped over asking clarifying questions about which part of the funnel they actually cared about.” The rest of the author's notes on Product Manager interview at Duolingo, Onsite - Product Sense / Strategy round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“This was a beast of a question.” The rest of the author's notes on Software Engineer interview at Duolingo, Take-home Assignment round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“The encrypt direction was trivial, just a hash map lookup and string concat.” The rest of the author's notes on Software Engineer interview at Duolingo, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“This was a lot more than I expected from a single question.” The rest of the author's notes on Software Engineer interview at Duolingo, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“Recognized the base problem pretty fast since it's close to something I'd seen before.” The rest of the author's notes on Software Engineer interview at Duolingo, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“The negating the score trick for descending sort is something I knew but fumbled explaining out loud.” The rest of the author's notes on Software Engineer interview at Duolingo, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.