DE Shaw/Two Sigma/Citadel/Jump/HRT QR Intern 面经

以下全部申请的是2022暑假QR Intern（各个公司对应的role名称有些不同）。整个过程有点辛苦，但也是很好的learning experience。分享一下经验希望对大家有帮助。有NDA所以很多具体问题就不透露了。

DE Shaw

网申，要填很多东西

Phone I

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Notified on the next day, schedule virtual onsite part I. Signed NDA.
VO I
Three rounds. Asked about research projects, coding/stats/probability questions, open ended questions.

Notified on the next working day, schedule VO II.
VO II
Two rounds, more senior people. Similar content as VO I.

当天接到面试通过，开始reference check。ref check 要写一些东西。几周后拿到offer。

Two Sigma

Friend referral

OA, 180min
Linear interpolation, temperature prediction

No phone interview. Virtual onsite invitation after 2 weeks. Signed NDA. VO spans two days.
VO I
Three rounds, one round coding, two rounds stats/math.
VO II
Five rounds. Three with more senior people, asked about research/open-ended/math. Two with HR, asked about behavioral.

Received offer next week.

Citadel Securities

Friend referral

Phone I
Asked about research, coding (just care about functionality, not efficiency), math

Received virtual onsite invitation after 10 days. VO in one day.
VO
Five rounds. Asked about research, coding, math, stats. Every round asked some technical questions.

Received offer a week later.

Jump Trading

Applied through Handshake.

Phone I
One math and one coding. Each with some follow ups.

Received virtual onsite invitation in one week. VO in one day.
VO
Four rounds. One round data science (given a pandas dataset and do some tasks), one round math, one round coding, one round behavioral.

Received verbal offer the next week.

HRT

Friend referral.

Code test, 120min
Standard leetcode-like questions.

Notified after 10 days to schedule phone.
Phone I

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Received virtual onsite invitation the same day. VO in one day.
VO
Four rounds. One round coding, one round data science (pandas dataset and do some tasks), one round open-ended, one round behaviral. Every round asked some research.

Received offer the next day.

总体来说：
- interviewer 都比较注重thought process而不是最终结果，所以要actively thinking然后说出来，他们会guide你
- 要熟悉一下基本的stats的知识，regression问的比较常见
- 做做绿皮书之类的probability/brain teaser，了解一下常见思路
- 每个interviewer问什么都有可能，有的senior的也会问probability question/coding。问的顺序也都有可能，有的也会先问technical再问research。所以don't be surprised。

太🐂了。。。原来厉害的人都是通杀的

这tm是灭霸吧，太秀了

ThetaSigma14 发表于 2021-11-22 20:37
cong！请问下楼主是top school吗！

谢谢！是的！

cong！请问下楼主是top school吗！

HRT coding 很难的，没人引导 全程不说话，也不提示。。。。

fancunwei95 发表于 2021-11-23 01:15
HRT coding 很难的，没人引导 全程不说话，也不提示。。。。

你的HRT怎么会是难的呢，我昂赛algo dev的利口题属于简单的利口hard原题？好奇问问哈哈哈（最后我也没拿到offer

哎，属实羡慕了。think process感觉就没法面了，只会做题哭了（

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LZ太强了，介意分享一下大概背景吗？