Very smooth interview process and the interviewer was very welcoming and helpful. Very interactive interview. A coding question was provided and can use any web search engine to take help and even the interviewer was helping if we discuss throughout at every step. Even though I might not be able to finish the entire problem, they assess the various areas which they mention at very start of the interview.

Recruiter Interview -> Phone Interview Recruiter set me up with a phone screen. Square's interview questions are iterative - they build off previous solutions. They also are created by the interviewer usually. Depending on the interviewer you have, you can get pretty unlucky like I did. I was paired with an amateur interviewer She ended up asking a really confusing final mathematical expression question with "complex numbers." It was not too challenging, but understanding what the question was asking was hard. I ended up spending too much of my limited time trying to comprehend the input and output that once I did, it was too close to the end of the interview. The biggest pain point of this interview was when asking for an example input and output, my interviewer provided me with an incorrect output. That confused me more and when finally asking her how she got to that output, she corrected herself and said "oh, I usually do it with different numbers" Ended the interview feeling like I was not given a fair shot but all you can do is apply again in a year and hope you don't get the same person.