I applied through an employee referral. The process took 4 months. I interviewed at FactSet (New York, NY) in May 2013
Interview
Referred by an employee 3 months ago. Got a phone interview and then invited to on-site interview. The on-site interview included: 1 product representation; 2 Code review; 3 OOD; 4 Algorithm implementation; 5 Lunch interview; 6 HR interview; 7 Director interview.
Suggestion: If you are a Java person and want to do back end development, this company may not for you. FactSet is a C++ shop. As far as I know, the on-site interview also proved what I heard, the employees who only know Java will be asked to either maintain legacy code written by Perl or do front end development using javascript. Java person barely has a chance to be assigned C++ back end development in FactSet.
Interview questions [5]
Question 1
1. Code review was 3 pages long code about a triangle class, needed to find the errors, design flaws... You got 10 mins to read the code. keep an eye on the Java syntax, argument list which is too long , null values, pass by value/reference, generalize some duplicated codes into a method, abstraction... If you told them you use Java, this triangle class has a high chance to be your code review.
3. Wrote an algorithm to get the number at nth row and mth column in the Pascal's Triangle. Generate the triangle from the 1st row to the nth row and then find the number at column m is NOT allowed, you need to use a formular to calculate the number, what an awkward thing. If you do not know the formular then you are screwed.
4. Given a dictionary and a NxM matrix where each element is a character. Asked to write code to find all the valid words that can be formed using elements in a row, column or diagonal in the matrix.
5. Director interview involves going through your resume, discussing about your projects and some behavior questions like why FactSet? You also needed to prepare some questions to ask.
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 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.
