Just last week, I accompanied a master's student to complete the Stripe 2026 New Grad OA. This student is a CS transfer...

Just finished the OA for Wayfair Data Scientist and it was surprisingly "friendly"! The whole session was 105 minutes, three questions...

As a programmer aiming at the top financial technology companies, CITADEL has always been the "dream company" in many people's hearts. This time, we took the students to complete the C...

10.12 Just finished Two Sigma interview, this time OA is still on HackerRank platform, total time 75 minutes,...

这周刚带学员做完 TikTok 的 SDE OA ，整套下来感觉节奏非常舒服。一共有四道编程题，整体难度不高，…

I just finished the Wayfair Data Scientist OA yesterday, and the overall feeling was much friendlier than expected, with a clear pace and questions on the practical side of...

I just finished taking the 2026 Capital One OA test and passed all four questions in one go! This time the question bank is based on TikTok and Uber’s co...

I recently finished ZipRecruiter's 2026 NG OA, which is one of those "graded unlock" questions - you can't look at it until you've done question 1...

This time, I'd like to share a set of the latest OpenAI OA questions from October 6, which appeared on the HackerRank platform. The whole OA a...

The BCG Engineer OA in early September is back, and this time we are sharing the real-world experience of one of our students. This time, I would like to share the experience of one of our trainees. He is a Master student in the US...