Whatnot interview notes, page 2 of 4

“Took me a bit to realize the ordering rules were doing a lot of work here.” The rest of the author's notes on Software Engineer interview at Whatnot, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“The high-level stuff was fine.” The rest of the author's notes on Software Engineer interview at Whatnot, Onsite - System Design / Architecture round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“Recognized it immediately and just coded it up.” The rest of the author's notes on Software Engineer interview at Whatnot, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“I started with the usual stuff, API gateway, service breakdown, how you'd call out to the payment vendor.” The rest of the author's notes on Software Engineer interview at Whatnot, Onsite - System Design / Architecture round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“Classic stack problem once you see it, but I fumbled around for a minute trying to think of a simulation approach before the stack click happened.” The rest of the author's notes on Software Engineer interview at Whatnot, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“It was a follow-up, so I was already a bit drained from whatever came before.” The rest of the author's notes on Software Engineer interview at Whatnot, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“Pretty easy warmup.” The rest of the author's notes on Software Engineer interview at Whatnot, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“I knew the shape of the solution pretty fast: group by user, sort by time, build a trie, DFS print with indentation.” The rest of the author's notes on Software Engineer interview at Whatnot, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“Got the basic approach pretty quick: group actions by user, sort by timestamp, walk each user's sequence and insert into a trie while incrementing counts.” The rest of the author's notes on Software Engineer interview at Whatnot, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“The recruiter doc actually names the possible prompts, so you can prep specific games beforehand.” The rest of the author's notes on Mobile Engineer interview at Whatnot, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.