Goldman Sachs interview experience Real time questions & tips from candidates to crack your interview
SDE - 1
Goldman Sachs
3 rounds | 5 Coding problems
Interview preparation journey
Journey
I applied through a referral, I found the opening for SDE 1 role on the Goldman Sachs career portal and then I reached out to people in Goldman Sachs on LinkedIn and one of them referred me for this role. It is quite important to take referral for company like Goldman Sachs because they receive very huge volume of applications.
Application story
I applied through referral and after a week I received a test link. I found my college senior on LinkedIn he is a Senior Software Engineer at Goldman Sachs and asked him to refer me for SDE 1 role and he referred me.
Why selected/rejected for the role?
I was not selected for this role because I was not able to clear the second interview round. Though I was able to solve the question but the interviewer wants the most optimal solution of the question which I was not able to provide.
Preparation
Duration: 8 months
Topics: DSA, Competitive Programming, Puzzles, System Design, C++, Computer Networks
Tip

Tip 1 : Solve atleast 500 DSA questions.
Tip 2 : Try to find the most optimal solution while coding.
Tip 3 : Practice hard dsa questions also because they are also assigned in the interviews.

Application process
Where: Campus
Eligibility: Above 7.5 cgpa, No backlog
Resume tip

Tip 1 : Have good profile on Codechef, Leetcode, Codeforces, Gfg
Tip 2 : Mention your best ranks in Global Contest
TIP 3 : Mention open source contributions if you have.

Interview rounds
01
Round
Medium
Online Coding Interview
Duration90 mins
Interview date2 Oct 2022
Problems2

I got the test link on the next day of application. This rounds consisted of 2 dsa based questions both were of medium difficulty. The test was conducted on Hackerrank and the duration of this round was 90 minutes.

1. Find the first repeated character in a string

#### You are given a string 'STR' of lowercase English alphabets. You need to find the repeated character present first in the string.

##### Example:
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Problem approach

I first used the brute force approach with nested for loops, to pass the test cases then I used Hashmap to optimize my solution.
I also wrote the time and space complexity of my solution in comments.

2. Maximum In Sliding Windows Of Size K

#### Given an array/list of integers of length ‘N’,...

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02
Round
Easy
Video Call
Duration60 mins
Interview date5 Oct 2022
Problems2

On 4-October-2022, I got a call from Hr team of Goldman Sachs that I have cleared the online round and when we can schedule an interview. And we agreed to have the interview on 5th October. The round was conducted on Microsoft Teams and I have to use their IDE to solve the 2 coding problems. The interview went well and I solved both the questions.

1. Coin Change

#### You are given an infinite supply of coins of each of denominations D = {D0, D1, D2, D3, ...... Dn-1}. You need to figure out the total number ...

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Problem approach

First I explained the recursive solution to the Interviewer and then he asked me optimize the solution. And then I used Dynamic Programming to solve the question.

2. 0 1 Knapsack

#### A thief is robbing a store and can carry a maximum we...

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03
Round
Hard
Video Call
Duration45 mins
Interview date10 Jul 2023
Problems1

This round was also conducted on Microsoft Teams it was around 1 PM. This time the interviewer was not focusing on Data Structures and algorithms but he started to ask me system design questions and then he asked me to design the Amazon System. Since I am not good in System Design so I was not able to give the proper explanation. So I haven't cleared this round.

1. System Design Question

Design Amazon

Problem approach

Tip 1: With Dsa focus on System Design as well.
Tip 2: Designing to scale - design high-level then drill down.
Tip 3: Communicate clearly your approach to the Interview.

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