The question was pretty standard, but the interviewer didn't mention what they were looking for.
Robust code to manage all the edge cases? A complete suite of tests? Production-ready code?
I did solve their two challenges and got the unit tests, but I was still rejected.
The following metrics were computed from 2 interview experiences for the Stripe Software Engineer role in Italy.
Stripe's interview process for their Software Engineer roles in Italy is extremely selective, failing the vast majority of engineers.
Candidates reported having very negative feelings for Stripe's Software Engineer interview process in Italy.