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DE Shaw Software Engineer Interview Questions and Answers

Updated 11 Oct 2024

DE Shaw Software Engineer Interview Experiences

3 interviews found

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Coding Test 

Good , just practice Leet code easy questions

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Recruitment Consulltant and was interviewed in Apr 2024. There was 1 interview round.

Round 1 - Coding Test 

It was a one hour coding test, with 4 programming questions.

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Interview Preparation Tips

Round: Test
Experience: Though technical questions were not that difficult but the quant section was way too hard and almost impossible to solve completely in given time limit.
Tips: It’s better if you attempt less questions (in quant) but do them right (I attempted less than 40% quant and still got through).

Round: Technical Interview
Experience: Next they would have 2-3 technical rounds where they cover most of the areas of CS. Some of the areas where they concentrated more would be Algorithms, OOPS Concepts and Logical Puzzles.
Tips: Brush up important concepts from various areas such as Operating System, OOPS, Software Engineering. Be ready for some really challenging questions in Algorithms. Also they do ask quite a few logical puzzles so it’s important you practice a lot of them online before the interview.

General Tips: D E Shaw selects very few candidates + comes in starting weeks of placement season, so competition is immense. Multiple companies come on same day, so it becomes a little tedious. Surely I wasn't the better candidate that day.
Skill Tips: D E Shaw focuses more on your ability to solve logical problems, so make sure you are in best state of your mind and speak while solving any problem because what they are looking for is not the right answer (well of course they are) but also how are you approaching the problem.
Skills: Operating System, OOPS, Algorithms, CS, logical puzzles, Quant
College Name: NIT SURATHKAL

Interview questions from similar companies

Interview Questionnaire 

4 Questions

  • Q1. Tell me about your internship, B.Tech project(BTP), CV
  • Q2. Implement LRU cache.
  • Ans. 

    Implement LRU cache

    • LRU stands for Least Recently Used

    • It is a cache eviction policy that removes the least recently used item

    • It can be implemented using a doubly linked list and a hash map

    • Newly accessed items are moved to the front of the list

    • When the cache is full, the item at the end of the list is removed

  • Answered by AI
  • Q3. What is virtual memory? Will we need virtual memory even if we have infinite amount of RAM?
  • Ans. 

    Virtual memory is a memory management technique that allows a computer to use more memory than it physically has.

    • Virtual memory uses a combination of RAM and hard disk space to store data.

    • It allows programs to use more memory than is physically available.

    • If a program tries to access memory that is not currently in RAM, it will be swapped in from the hard disk.

    • Even if we had infinite RAM, virtual memory would still be n...

  • Answered by AI
  • Q4. Given an array, Find out maximum length of subarray where max of subarray <= 2*min of subarray
  • Ans. 

    Find maximum length of subarray where max <= 2*min.

    • Iterate through array and keep track of max and min values.

    • Update max length when condition is met.

    • Time complexity: O(n)

  • Answered by AI

Interview Preparation Tips

Round: Resume Shortlist
Experience: No CPI cut off and It was open for all departments.

Round: Test
Experience: In muliple choice question Mostly questions were base on maths, probability, c programs, algorithms, Systems. If you are prepared then Questions were not that much tough. Keep strong concepts of Operating systems. For subjective part, Some problems were from maths proofs, some were from probability, some were from algo. We had to write algorithms. etc
Duration: 180 minutes

Round: Problem Statement
Experience: Questions were doable.

Round: Interview
Experience: Everyone was cool, They made me feel comfortable and then started asking questions.
Tips: If you have good rank in online coding competition, do mention it in CV.Most of the students think that GS asks only probability-puzzles. They did not asked me any question on probability or puzzle. Everything they asked was based on Algorithms problems and Operating system. I think it depends on team for which they are hiring. Most important point is don’t lose hope because you have low CPI or you are not good at something. Keep Operating systems fundamental concepts strong.

General Tips: We should balance in Placement and Compititive online coding. Keep in mind Placements and Compititive online coding are some what different things. Keep on improving our mistakes on daily basis. I would strongly suggest you to do introspection daily it will help you to find out your weaknesses and strong points, where we are going wrong etc. There are two thing on which we shoud focus.1. Preparation (I have told everything requered for preparation).2. Get output of all hard work. How to keep our mind on 100% output while the actual exam(placement).For this, I used to go for physical exercise daily in the morning and medidate for 20-30 minutes. Along with exercise i used to do Sudarshan Kriya(Art of Living). Meditation has lot of power :).
Skill Tips: Keep your OS fundamentals strong. To improve codgin skills practice as many problems as you can. Regularly participate in online coding competitions it really helps to solve or approach any new problem. Many time instead of correct answer the approach to solve the problems is very important. How you think, How you approach the problem is checked in interview.
Skills: Coding Skills, Operating Systems , Problem solving skills
College Name: IIT Guwahati
Motivation: The name GS itself enogh for motivation.

Skills evaluated in this interview

I was interviewed before Mar 2021.

Round 1 - Face to Face 

(3 Questions)

Round duration - 60 minutes
Round difficulty - Medium

Technical round with questions on DSA and OS.

  • Q1. 

    LRU Cache Design Problem Statement

    Design and implement a data structure for a Least Recently Used (LRU) cache that supports the following operations:

    • get(key) - Retrieve the value associated with the...
  • Ans. 

    Design and implement a Least Recently Used (LRU) cache data structure that supports get and put operations with a specified capacity.

    • Implement a doubly linked list to keep track of the order of keys based on their usage.

    • Use a hashmap to store key-value pairs for quick access and updates.

    • When a key is accessed or updated, move it to the front of the linked list to mark it as the most recently used.

    • When the cache reaches...

  • Answered by AI
  • Q2. 

    Maximum of All Subarrays of Size K

    Given an array of non-negative integers and an integer K representing the length of a subarray, your task is to determine the maximum elements for each subarray of size ...

  • Ans. 

    Find the maximum elements for each subarray of size K in a given array.

    • Iterate through the array and maintain a deque to store the indices of elements in decreasing order.

    • Pop elements from the deque that are out of the current window.

    • Keep track of the maximum element in each subarray of size K.

    • Return the maximum elements for each subarray.

  • Answered by AI
  • Q3. What is virtual memory?
  • Ans. 

    Virtual memory is a memory management technique that allows a computer to compensate for physical memory shortages by temporarily transferring data from RAM to disk storage.

    • Virtual memory allows programs to use more memory than is physically available on the system.

    • It helps in multitasking by allowing multiple programs to run simultaneously without running out of memory.

    • Virtual memory uses a combination of RAM and disk...

  • Answered by AI

Interview Preparation Tips

Eligibility criteriaAbove 7 CGPAGoldman Sachs interview preparation:Topics to prepare for the interview - Coding Skills, Operating Systems , Data Structures, Algorithms, System Design, Aptitude, OOPSTime required to prepare for the interview - 5 monthsInterview preparation tips for other job seekers

Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.

Application resume tips for other job seekers

Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.

Final outcome of the interviewRejected

Skills evaluated in this interview

I applied via Naukri.com and was interviewed before Oct 2019. There was 1 interview round.

Interview Questionnaire 

2 Questions

  • Q1. Normal php questions like overriding,overloading,traits,interface,abstarct class nothing else.. It was online but in 2016.
  • Q2. Go though those topic as they are very important and asked in most companies.

Interview Preparation Tips

Interview preparation tips for other job seekers - Read those topics and try to understand with example and doing on your own.Before entering Chetu prepare yourself that you may get fire anytime.Because hiring and firing is lot in Chetu but in terms of salary it is good.

Interview Questionnaire 

1 Question

  • Q1. Oops programming,SQL server Database

I applied via LinkedIn and was interviewed in Mar 2021. There were 4 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. All were Ds and algo questions?

Interview Preparation Tips

Interview preparation tips for other job seekers - Be prepared on DS and algo section. Also keep practising on online competitive coding.

Interview Questionnaire 

1 Question

  • Q1. Frequency of each word ina sentence
  • Ans. 

    To find the frequency of each word in a sentence.

    • Split the sentence into words

    • Create a dictionary to store word frequency

    • Iterate through the words and update the dictionary

    • Return the dictionary

  • Answered by AI

Skills evaluated in this interview

Interview Questionnaire 

2 Questions

  • Q1. What's is meaning of success?
  • Ans. 

    Success is achieving one's goals and feeling fulfilled in the process.

    • Success is subjective and varies from person to person.

    • It can be achieving a personal or professional goal.

    • Success can also be measured by the impact one has on others.

    • Feeling fulfilled and content is a key component of success.

    • Success is not always about material possessions or wealth.

  • Answered by AI
  • Q2. Why do we work in corporate office?

Interview Preparation Tips

Interview preparation tips for other job seekers - Find all these kind of of questions and their solutions then you cracked any kind of interviews.
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DE Shaw Interview FAQs

How many rounds are there in DE Shaw Software Engineer interview?
DE Shaw interview process usually has 1 rounds. The most common rounds in the DE Shaw interview process are Coding Test.

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DE Shaw Software Engineer Interview Process

based on 2 interviews

Interview experience

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