Goldman Sachs On Campus | Internship Interview Experience | Selected

My interview journey for the Goldman Sachs internship began with an on-campus coding test, which was followed by a series of interview rounds. The coding test comprised five sections: Coding, CS MCQ, Problem Solving MCQ, Advanced Problem solving, and Subjective. I had to be careful with MCQs due to negative marking, but the coding questions were manageable.

Interview Round 1:
In the first interview, I was given a single algorithmic problem. I was asked to find the number of paths from the top-left to the bottom-right cell in an m*n matrix such that the sum of elements along the path equals a given number k. I successfully coded my solution and demonstrated its functionality.

Interview Round 2:
The second round focused on another problem-solving question involving binary trees. I needed to determine if the value of a node was equal to the sum of all nodes in its subtree rooted at it. After coding my initial solution, I was prompted to further optimize it. This round also included general OOPs and HR questions.

Interview Round 3:
The final round began with a deep dive into my resume and projects. I explained one of my projects, which led to a discussion about its data storage structure and potential optimization strategies. Following this, I was given a relatively straightforward tree problem: to output all nodes visible from the right side of a binary tree. The last question was a modified binary search problem, but I cannot recall the specifics of the modification.

Overall, the on-campus process was very smooth, and the interviewers were exceptionally friendly and helpful. I gathered that Goldman Sachs places significant emphasis on problem-solving abilities. While direct core CS questions weren't asked, concepts related to relational and non-relational databases, as well as OOPs, were touched upon indirectly.