I applied through a recruiter. The process took 1 week. I interviewed at MongoDB (San Francisco, CA) in Apr 2025
Interview
Interview process is simple and quick. First is recruiter call. After that, if the team wants to interview you, you will be setup with a phone screen. Unfortunately I got rejected after that but process afterwards if virtual onsite with system design round, coding round and HM/Director round
Interview questions [1]
Question 1
What is inverted search?
Implement Inverted search with following functionalities:
insert(String doc)
search(String term)
delete(String doc)
andSerach(String term1, String term2)
Interviewer had a particular solution in mind that took a different approach from my own. My solution was algorithmically correct but not one that they were familiar with and preferred a non-closed form solution.
Interview questions [1]
Question 1
API design question with some standard library usage required.
I applied through a recruiter. I interviewed at MongoDB
Interview
Process was: Recruiter screening, Phone Screen, 5 Virtual Onsite. The whole process took a long time. I loved each interviewer, they were really friendly, nice and passionate with their work. The interview questions were unique and on the harder side but well organized.
I applied online. The process took 3 weeks. I interviewed at MongoDB in Oct 2025
Interview
Recruiter phone interview, a technical screen, then multiple technical interview rounds. I've gone through non-concurrent programming, concurrent programming, algorithms and the design one; didn't make it to the behaviorial and final interviews,
The process is well explained, and I have even got feedback afterwards.
Interview questions [2]
Question 1
Concurrent interview: design a concurrent expriring queue
