Mambu interview questions

very long and required a lot of work including a big assignment and four + interviews with different people, only to have them essentially ghost me over email and not follow up with any feedback, really dissappointing.

Interview process consisted of a 30-minute HR screen, a 1-hour call with the hiring manager, a 3-hour Go take-home assignment, and a final 1-hour technical discussion. The process progressed to the final round despite a clear mismatch between how questions were posed and how answers were evaluated. Several technical questions were underspecified. Attempts to clarify assumptions or constraints were treated negatively rather than used to align on the problem. When answers did not match unspoken expectations, the discussion became adversarial instead of exploratory. Evaluation favored prior fintech integration pattern familiarity over reasoning, problem framing, or explicit discussion of trade-offs. Candidates without deep fintech integration background should clarify expectations early.