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本帖最后由 匿名 于 2021-12-14 22:53 编辑
楼主西海岸理科phd，申请的是2022的Quantitative Researcher Intership。申请得较晚，准备比较匆忙，期间在地里看了挺多面经，受益良多。以下分享自己所申请的5个公司的面试经验，希望对后来人有帮助。主要是phone interview的题目，onsite由于签了NDA所以只能描述个大概。
Citadel Security
1. Three rounds phone interview spaned in several weeks
Every round asks about research ~ 20-30 mins. Received onsite invitation one day later
2. Three rounds onsite interview
One round math/coding, one round cv questions/stats/coding, one round behavioral/coding, one round behavioral
Every round asks about research. Received final round interview invitation one day later.
3. Final round interview
Only behavioral questions.
Received offer the next week
Two Sigma
1. OA
Standard problems: linear interpolation and NY city
Received onsite invitation one week later
2. Seven rounds onsite interview
Day 1: one round data science open questions, one round math open questions discussions(background check), one round coding
Day 2: two rounds with senior persons (ask about research, math questions, stock prices basics, feature engineering, behavioral questions), two rounds behavioral questions with HR
Received final round interview invitation the same day
3. Final round
Behavioral questions and data science questions
Received offer the same week
HRT
1. OA
Standard problems: minimum changes to make arrayA become arrayB (Greedy algorithm); assassin attack problem (BFS/DFS)
Received phone interview invitation one week later.
2. One round phone interview
Ask about research and math questions
Received onsite interview invitation the same day
3. Four round onsite interviews
One round coding, one round data science (use pandas, prediction tasks), one round open-ended questions, one round behavioral
Received reference check request (and verbal offer) two days later
Jump Trading
1. One round phone interview
Received onsite invitation one day later
2. Four round onsite interviews
One round math (probability, linear algebra, game theory), one round data science (pandas, prediction tasks), one round behavioral, one round coding
Received verbal offer the next week
DE Shaw
1. One round phone interview
Ask about research and math questions
Received onsite invitation one day later
2. Onsite interviews
One round behavioral/research/math questions, one round research/behavioral/coding/data science open questions.
I only got two rounds and didn't do quite well (only solve the problems very slowly with their hints; made many small mistakes) in the early morning. Received reject the next week.
Summary:
I am lucky to go through all these interviews. Overall I feel thinking process and good communication are more important than solving the problem singly by yourself. So being confident and speak out your ideas is crucial.
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匿名用户-QAVVS
2021-12-23 13:50:26
匿名用户-U9KRP
2021-12-22 08:57:37
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