Applied for software engineer (new grad) position online, given a hackerrank online assessment. 5 questions to answer in 120 minutes, 2 MCQ and 3 coding. A couple other rounds. Generally a good experience.
It is a highly technical interview, with coding sessions that need to be run and checking the results.
It is common to have weedend and evening meetings with asian teams.
They tend to speak chinese during interview
Questions d'entretien [1]
Question 1
ML basics; past experience; why you left current role.
J'ai passé un entretien chez TikTok (San Jose, CA)
Entretien
Had a take home assignment and then a round of interview where the previous take home assignment wasn’t discussed at all.
Asked industry standard PM interview questions on Guesstimation, Product design etc. Was also drilled on my resume.
A former colleague referred me to the Data Scientist position at TikTok, which kicked off the interview process. The technical screen included a question about designing an A/B test for a ranking model, followed by an SQL challenge related to user sessions. The funny part was that the SQL problem was a twist on one I had been grinding through on PracHub just a few days prior. After some behavioral interviews, I received an offer, but ultimately decided to decline as it didn't align with my goals.
Questions d'entretien [2]
Question 1
Walk me through how you'd design an A/B test for a new ranking model on the For You feed, and how you'd pick guardrail metrics.
Given a sessions table (user_id, session_start, session_end, country), write SQL to find the users whose average session length grew the most week-over-week.
