User-l6pgjJul 13, 2026

Perplexity offer came through, the ML round almost got me

Hack2hire Community · 2026-07-13T06:00:00.123Z

Applied for the AI Engineer role after a recruiter hit me up on LinkedIn. Phone screen said prep ML fundamentals with NumPy, so I was ready for math questions. Instead they threw a scikit-learn task at me, train a binary classifier on a toy dataset and then improve the eval metrics. Hadn't touched sklearn in months honestly, spent the first ten minutes just remembering the fit and predict calls. Got through it though and the onsite loop went smoother than expected. Heard back four days later wit...

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perplexity

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Replies (4)

priyashah94Jul 13, 2026

How was the onsite loop after that? Curious if it was heavy on infra stuff too.

mchenJul 13, 2026

Second this, heard the infra round trips people up more than the coding ones.

rohan.vermaJul 13, 2026

Had something similar for my phone screen, ended up googling the fit method mid interview lol. Still passed somehow.

noahdavis02Jul 13, 2026

Congrats on the offer, that's awesome.

chloechenJul 13, 2026

Wait was this pytorch or sklearn? Company profile I saw mentioned both depending on team.

vikramreddy92Jul 13, 2026

Straight sklearn, no pytorch involved. Kinda threw me off since the prompt said NumPy fundamentals.

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