American Express Sr Software Engineer interview questions

Standard 4 - phase interview: Manager, Coding, API Design, Culture Fit. Completed all rounds with good feedback, received hints that an offer was coming up - recruiter kept checking up on availability, start date, salary expectations, etc. Ended up with HR/recruitment stringing me along about an offer post final interview for 3-4 weeks, and after multiple follow ups was told the role was given to an internal candidate. This made me feel like it was a sham process I never had a chance in, and like my time had been wasted. The good: - all interviewers mentioned good work balance, supportive colleagues and work culture - met some really nice people during the interviews The bad: - web IDE tooling not working during coding interview, not allowed to use IDE - one of the interview pairs was not engaged at all and appeared disinterested in conducting the session, barely engaged in a conversation, and really did not seem like they wanted to be there at all - drawn out interview process, no definite outcome after completing all stages for 3-4 weeks

There were two rounds: a coding task and an architectural interview. The coding task included questions about collections, Java API, complexity, and general coding approach, while the architectural interview focused on system design, best practices, and scalability considerations