I applied through a recruiter. I interviewed at MongoDB (New York, NY) in May 2025
Interview
Applied through a recruiter, had a phone screen then a karat interview that was 2 questions and leetcode easy questions, did not pass it. HR mentioned that it would have been a super day after that with 3-4 45 min interviews
Interview questions [1]
Question 1
Why this data structure? What is the time and space complexity? How would you make it more efficient?
Not bad, there were four technical interview rounds where each round they asked a question regarding coding and explaining my answer. But it was mostly just coding and algorithm and system design questions.
I applied through university. I interviewed at MongoDB (Gurgaon, Haryana) in Jan 2026
Interview
Total 5 rounds highly tiring. First round is phone screen followed by a karat technical round(DSA + CS fundamentals). Then 2 technical rounds about projects, previous experience + more DSA. Finally last HR round.
Interview questions [1]
Question 1
What do you know about MongoDB and its culture ? What do u understand by SQL and No-SQL database and which is beneficial in which case.
I applied online. I interviewed at MongoDB (Dublin, Dublin)
Interview
Recruiter reached out after seeing my CV, and scheduled an initial call. Later got interviewed with Karat which asked leetcode easy/medium questions, which I didn't do so well on due to pressure.
