I applied through university. The process took 3 weeks. I interviewed at EXL Service (Jersey City, NJ) in Nov 2015
Interview
One phone interview: with one manager
One onsite interview: with two bosses
Two interviews are processed by 3 weeks. You will get information in 3 days after the interview.
At first I recieved the rejection letter from HR but right in the afternoon he called me to inform his mistakes. I was offered the chance.
Interview questions [1]
Question 1
Focus on brainteaser and case study.
Phone: use 1,3,4,6 to get 24 (2 methods). how many restaurants in NY city. How long does one athlete walk or run during a football match. Sampling from 10000 data points, make 2 dataset A and B whose size is 1000 (with replacement), how many datapoint are same between A and B
Onsite: 4 people cross the river with a boat which can take 2 people at most, make an optimal solution. How to decide the yellow light time for the traffic lights.
...
4-5 rounds, prepare your resume , sql, case study , probability, python , puzzles .
SQL and general case study in first round. 30 min round .
2nd round python pandas question etc.
3rd round puzzle , why you want to join us and more sql .
Interview questions [1]
Question 1
case study - how many bus required to carry out all passangers landing on blr airport /
easy but not formal, over all, its not intense, one with hiring manager, one with client, for the client side, he just asked about easy questions about excel , and chat about weather
I applied through a recruiter. The process took 1 day. I interviewed at EXL Service in Feb 2024
Interview
A SQL question followed by A/B testing question (interviewer was pretty less knowledgeable on this). Finally questions on PowerPoint that can be easily googled. Bad job description and an even ill-fitted interviewer.
Interview questions [1]
Question 1
Explain A/B testing? How does Bayesian A/B testing work?