I applied online. The process took 5 weeks. I interviewed at MongoDB (Barcelona)
Interview
La entrevista son unos 5 pasos que incluyen programacion sequencial, programacion paralela, algorithmia, diseño y etc, en total unas 7 contando la toma de contacto y una final con algun jefe de grupo y demas
Interview questions [1]
Question 1
Los de algorithmia son problemas tipicos (programar un rwlock, programar algo como std::merge) preguntas de complejidad y cosas conceptops de compresion de data.
I applied through a recruiter. I interviewed at MongoDB in Jun 2026
Interview
The interview process was well organized and flowed smoothly. However, it had quite a few stages, starting with an HR interview to assess my background and skills, followed by a technical interview that included a live coding exercise and several in-depth technical questions. Overall, it was a thorough process that effectively evaluated both technical ability and problem-solving skills.
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.