The process took 3 weeks. I interviewed at MongoDB in Oct 2022
Interview
Got a 30 min phone screening. I was asked about compilers and language properties. And why I want to work at mongodb. It was a nice experience. And I got an email the same day to go to the next step which was a karat interview. I solved one question in an hour and for the follow up question time was up. I got a rejection email after 2 days.
Interview questions [1]
Question 1
Why mongodb? The difference between you two favorite programming languages? Is python JIT? Karat It was about string manipulation and array
First had a phone call with a recruiter, then a technical assessment through a third party (with a person, not one of those websites), and then a three hour interview with three members of the team. Two of the three hour segments were coding, and the other was a behavioral.
I applied online. The process took 1 week. I interviewed at MongoDB (New York, NY) in Mar 2026
Interview
1. HR Call discussing the opportunity
2. Karat interview to solve as many leetcode as possible
3. Three interviews in 3 hours including a leetcode round, a behavioral round, and a Object-Oriented round.
* Initial screening calling with a recruiter and then a 1 hour technical interview call using Karat with a pair coding set up using a plain text editor not an IDE
Interview questions [1]
Question 1
Half System Design based questions and half technical