one behavioral phone interview, then an outsourced 45 min technical interview that had three technical questions then a coding question where the interviewer wanted the code to compile and ran it
Interview questions [1]
Question 1
they gave code on the screen and asked the runtime
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