Process
I applied through a recruiter.
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.
Questions
Design a simple rate limiter system.
Explain the difference between P50 and P90. If there is a spike in only P90 but not P50, what does that mean? How will you investigate the issue?
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Interview Statistics
The following metrics were computed from 55 interview experiences for the MongoDB Senior Software Engineer role.
Success Rate
MongoDB's interview process for their Senior Software Engineer roles is fairly selective, failing a large portion of engineers who go through it.
Experience Rating
Candidates reported having good feelings for MongoDB's Senior Software Engineer interview process.
MongoDB Work Experiences
- 5.0GoodSenior Software Engineer • Current EmployeeIpohJanuary 23, 2026Pros: There are good and nice people around to work with.Cons: Management can be better, I think.
- 5.0Pretty awesome place to workSenior Software Engineer • Current EmployeeSydney, AustraliaAugust 12, 2020Pros: Some of the world's best people to work with. A very open, honest, and inclusive culture. Approachable senior executives. Interaction with other business units, like support and sales. Good pay, flexible working hours, a great office location, free food some days, etc. – all the perks that are quite regular in the industry now.Cons: I miss working with smaller teams and knowing everyone in the office. As the company grows, the small family feel keeps drifting away.
- 5.0Fantastic company with fantastic cultureSenior Software Engineer • Current EmployeeSydney, New South Wales, AustraliaAugust 31, 2022Pros: You work with a group of the best people in the industry on really interesting projects. You have a very good work-life balance. You have the freedom to choose your career path.Cons: Onboarding may take some time if you are not from the database industry.
MongoDB Interview Questions
