I applied online. The process took 4 weeks. I interviewed at FactSet (San Mateo, CA) in Nov 2012
Interview
Moved extremely quickly. I was emailed by a recruiter the next day after submitting my resume to set up a phone interview. The day after the phone interview, I was invited out to San Mateo, CA for in-person interviews. While waiting for the plane back home immediately after the interview, I was called by the recruiter to extend an offer.
Phone Interview:
1. Basic data structures and algorithms questions. Why would you use one data structure over another in certain situations? What are the runtimes of their common operations? Etc...
2. Write a function to determine if a string is a palindrome.
3. Write a function to reverse a singly-linked list.
In-Person #1:
1. Code up the C/C++ atoi() function.
2. Write a function to determine the lowest common ancestor of two nodes in a binary search tree.
In-Person #2:
Describe the classes and structures you would use to code up Microsoft Excel (took all hour).
In-Person #3:
HR interview with the recruiter with typical questions.
In-Person #4:
They gave me three pages of bad Java code, 20 minutes, and a pen. Talked with a couple software engineers about my changes.
In-Person #5:
Technical discussion with a manager with an engineering background about a challenging project. He wanted me to explain what made the project so challenging, and what I did to overcome it.
Interview questions [1]
Question 1
The final interview was the most difficult. They really want you to be able to explain complex abstract concepts in a way that others can understand.
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.
