The recruiter was responsive and professional. After the recruiter call to discuss roles there was a technical screen. The interviewer was not paying attention for half of the interview and also seemed perturbed with answering questions e.g. valid inputs, etc. This was extremely unusual since these interviews typically focus on communication but this interviewer was unwilling to communicate. They even at one point went on mute to talk to their roommate in the background and joke around in the middle of the interview. It was pretty clear that they had no interest in putting effort into the interview so it didn't matter that I solved the problem.
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