Long Interview process over two months and suprisingly I learned that mine was the fastest. Suggestion: Dont waste your time by interviewing. Tl;DR First is a technical screening hackerrank/codility test with one simple question on string permutations and a BFS graph question (application not direct) Second was HR meeting where she introduced whole interview process Third was techincal background check interview where interviewer tested concepts realted to databases and many case based questions realted to distributed systems Next there was a loop interview with DSA and system design. DSA interview there was quick 15 min resume based questions and then questions about python internals and memory management and a linkedlist question on approach after which there was a leetcode medium question on palindromes and was expected to write production ready code. They use codesignal Then was system design interview about designing customer to merchant payment system design with some funtional requirements already specified. A Japanese guy interviewed and there was absolutely no feedback on whether he is fine with the design and things like that it felt like I was just talking something, I got positive feedback from all the above rounds. Then HR started talking about salary and I agreed to the range they requested, Final was HR 15 min and Manager guy for 45 minutes. Japanese guy with no english and a transaltor who was rarely used. This guy tried asking questions in his english and I answered well. Finally they sent a rejection saying skill mismatch. Super unprofessional dont waste your time interviewing this company. They are just timepassing with candidates and don't really care about the candidate's time. They take people for granted and don't really give any feedback. They told verbally that I cleared all the technical rounds and rejection was a one word reason called skill mismatch. I dont know what skills are they looking for ?