I applied through college or university. The process took 3 weeks. I interviewed at MongoDB (New York, NY)
Interview
First round is a behavioral screen by the recruiter. Second round is a technical phone screen. Third round is on site. One of my on-site interviewers was the CTO, which was cool. The questions were on the easy side compared to Google, Facebook, etc.
Here's where it gets weird: I asked some of my interviewers a standard question about work-life balance. After my last interview, the recruiter confronted me about those questions point blank. Which means that:
a. They documented the questions I asked my interviewers.
b. They consider questions about work-life balance a red flag.
That's a red flag about Mongo, if you ask me. I ended up accepting an offer from a larger company with better salary and work-life balance.
I applied through a recruiter. I interviewed at MongoDB (Dublin, Dublin) in Mar 2026
Interview
Some behavioral questions and a rate limiter coding question with a staff engineer. They really wanted full proof code with no syntax errors and no interviewer guidance. Felt like the interviewer was not attentive.
Saw a fresh ad online, applied quickly and got a quick follow-up from recruiter. So far so good. Well, that's where it ends. After the recruiter call was scheduled, I got completely ghosted.
The interview process was seamless, and the recruiter was helpful and communicative throughout the process. The interviewers were friendly and knowledgeable. The interviews included DSA, Design, Concurrency, and Behavioural aspects. Had a great experience overall.
Interview questions [1]
Question 1
Data Structures and Algorithms, Concurrency, Multi-Threading, Design, Behavioural
