I applied online. The process took 1 week. I interviewed at MongoDB in July 2025
Interview
Phone screen, general technical background interview that included a simple live coding test, a practical technical live coding interview, algorithms/data structures/fundamentals live coding interview, general technical conversational interview. All interviews allowed using the programming languages of choice, but suggested using the language you would be hired for.
Interview questions [1]
Question 1
Converting a Javascript Uint8Array into a UInt32Array.
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