Box Staff Software Engineer interview questions

1 Hour Technical Screening followed by an on-site interview consisting of multiple interviews over the course of an afternoon. These interviews were a mixture of technical coding tests, architecture, and behavioral interviews.

Recruiter reached out based on my online profile and setup a technical phone screen. They obviously know what my background is and the skillset I bring to the table. Phone screen setup relatively quickly and the interviewers seemed friendly and nice to talk to. 3 coding interview Qs of increasing difficulty level. Wrote code on coderpad for all 3 in the alloted time, walked through testcases and interviewers agreed on the solution and correctness. 2 days later get a cold rejection e-mail indicating my background does not fit the requirement. Duh !! What a waste of time and effort...