Ho presentato la mia candidatura tramite segnalazione di un dipendente. Ho sostenuto un colloquio presso TikTok (Los Angeles, CA) nel mese di mag 2021
Colloquio
Applied via referral
Courtesy call to just describe Interview process - 15 mins
Ghosted for 2 weeks after that
Then sent a Hackerrank Medium level SQL coding test
Hiring Manager Interview (hiring manager was a data scientist himself and he told that at the end of the interview)
They will not tell you anything about the interview or who is going to interview you.
Domande di colloquio [1]
Domanda 1
1. Tell me about yourself
2. Why TikTok - Be creative in your answer
3. Interesting project that you are looking forward to do in TikTok
---Case study--
1. How do you increase DAU?
2. How do you acquire more users?
3. How do you improve TikTok users' 'For you' feed
---
SQL
Mostly on joins and group by
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.
Domande di colloquio [2]
Domanda 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.
Ho presentato la mia candidatura online. Ho sostenuto un colloquio presso TikTok (Londra, Inghilterra)
Colloquio
one medium level sql test and an open question
Since i'm not familiar with business context(though i actually spent time preparing AB test and causal inference), i didn't get what i should answer.
Domande di colloquio [1]
Domanda 1
if tiktok shop is going to launch in Netherland, how to evaluate it before AB test