Goldman Sachs Interview Experience | 2.5 YOE | AWM/AM Tech | Hyderabad

I am currently working as a Software Developer with a service based company since 2.5 years and recently got a chance to appear for an interview with Goldman Sachs.

The Recruiter reached out to me via Gmail and shared me the job link to apply.

Round 1: HackerRank Test
HackerRank Online Assessment test of 90 minutes, with 2 DSA questions (Leetcode-easy) to solve. I coded both the questions and was able to wrap up the test within 30 minutes.

After round 1, a different recruiter reached out to me, and scheduled a coderpad interview.

Round 2: CoderPad Virtual Interview
Virtual interview of 1 hour, interviewer asked me 2 DSA questions. both questions were leetcode medium level, solved both.
1: https://leetcode.com/problems/number-of-islands/description/
2: https://leetcode.com/problems/longest-substring-without-repeating-characters/description/

20 minutes after the interview was over, the recruiter called me saying that i got selected for the super day (3 interviews in a single day).

Round 3: DSA Round
This was a 1 hour long interview.
Question1: https://leetcode.com/problems/single-element-in-a-sorted-array/description/
Follow up: How will you solve this question in same time complexity if every element other than the single element appeared thrice?
Question 2: https://leetcode.com/problems/longest-substring-with-at-most-k-distinct-characters/description/

Round-4: Software Engineering Practices (1 hour)

1. Prop Drilling in React
2. What all design patterns you have implemented till now
3. SOLID principles detailed explanation
4. Any design principle you know other than Solid
5. ACID properties
6. When will you use MySQL database and when NoSQL
7. Internal working of Hashmap and how are collisions handled
8. How do you customise hashcode() function
9. What all new features have been implemented in Java 8
10. What is the role of API Gateway
11. What all hooks have you used in React

This round was an elimination round. I got a call from the recruiter after two hours that I have been selected for the next round.

Round-5: Software Design and Architecture (1 hour)

1. What is 'L' in SOLID principles? Code also. Now tell what all SOLID principles your code is following and what it is not. Explain everything in detail.
2. If there is some issue in any API on prod env, how will you check for that?
3. Difference between monolithic and microservices architecture. Tradeoffs of microservice.
4. If I remove UI and Database part from a service and only keep the business logic, will it still be called a microservice?
5. Role of API gateway and load balancers, Can we skip load balancers?
6. Building blocks of React
7. Entry point of react code (Ans- app.js). Explain the content of app.js
8. Difference between functional component and class component in React
9. useMemo hook
10. difference between let,var,const in javascript
11. How do microservices communicate (Rest APIs and messaging queues).
12. Spring Security- JWT, OAuth.

Note: In round 4 and 5, the interviewer asked a lot of questions from my resume, the projects i have worked on, what all work I have done- detailed discussion

This was also an elimination round, and although I could not make it up to the final Hiring Manager round, but the whole experience was worth it. I learned a lot during the process.