I applied through college or university. The process took 2 weeks. I interviewed at FactSet (San Francisco, CA) in Feb 2016
Interview
College fair. Got emailed a few weeks later to set up phone interview for 45 minutes. Arranged it for Friday morning at 10:00 am. Started out just talking on the phone answering questions that kind of flowed into other questions. Went on collabedit and was able to choose my preferred language, then he wrote out a problem/scenario and had me type the code to solve it. "Print out all the paths in a binary tree that sum up to a given value"...see the interview questions below for more details. Very laid back and nice. Ended with an opportunity to ask questions.
Interview questions [1]
Question 1
Q: Tell me the differences between a linked list, array, array list.
Q: Explain encapsulation and how it works
Q: Explain inheritance and how it is beneficial/works
Q: Describe a hash table/map and how it works to get O(1) insert/delete
Q: How is a hash table implemented?
Q: For the hash table/map what are different methods of insertion. How do each of them work?
Q: Coding problem on collabedit.com: He made a BST and wanted me to "Print out all the paths in a binary tree that sum up to a given value" using semi-pseudocode.
Q: Explain what OOP means to you.
I applied through a recruiter. The process took 2 weeks. I interviewed at FactSet (London, England) in Feb 2026
Interview
3 rounds of interviews.
1 behavioural interview, 1 technical interview (leetcode), 1 system design interview
all interviews were online.
Increasing word count to thirty. This is annoying bla bla bla bla bla
Interview questions [2]
Question 1
System Design:
Design google docs with version control.
Standard with 4 rounds including a phone interview and a HR interview. The product demo is the intro, after which a tech and HR rounds occur back to back. Usually takes 3.5 hours after the 1 hour phone interview
I applied through college or university. The process took 3 weeks. I interviewed at FactSet (Hyderābād) in Dec 2025
Interview
It was a very casual interview. I was told the interview would start at 8:45 AM but it started around 10 AM. The interviewer was very friendly and walked me through my thought process towards solving the given problem. There were two rounds of interviews, purely technical though I did not get shortlisted for the second round.
Interview questions [1]
Question 1
Given an array of integers, and an integer k, what is the length of the longest subarray of the same consecutive integers we can get if we can remove any k elements from the array.
