I came across a very classic Tiktok OA set on HackerRank this time, and the whole set of three questions covers the DP, fully memorized...

Just passed IBM OA this afternoon , the platform is HackerRank. the overall experience, the difficulty is easier than the flax I did a few days ago a...

I interviewed for a Data Scientist position at Two Sigma a while ago, and while my memory is still fresh, I'd like to tell you more about...

This time, I would like to share a student's interview experience at Yelp. To be honest, the whole process is not particularly complicated, and the final interview is only 3 rounds, each round is 45 minutes...

I would like to share a set of HRT OA that I recently took a student through. This student is a candidate for this year's impact quant / trading firm...

This year's fall recruiting for Citadel's OA is here again! As one of the top quantitative firms in North America, many students feel pressured when they hear Citadel...

Recently accompanied a trainee to walk through Databricks' SDE Virtual Onsite, felt quite representative, organize...

Recently, I just helped a student review his Data Scientist interview at Spotify, and the whole experience was quite fresh, so I came...

It's really been an intensive OA bombing mode lately, with several sessions lined up in a day, almost non-stop. Yesterday just finished a round of Goldman Sachs onli...

I recently walked a trainee through the entire interview process for Lyft Data Analyst, and it was honestly more comprehensive than expected. The first round of chatting about business log...