It looks like interview was just for their training purpose. I applied through Glassdoor, fist time rescheluded to two weeks later. There were two technical rounds, one was mostly on basic questions, where interviewer showed me easy programs to guess output or error. Some basics of Java like on OOPS. Two programs were asked to code in first round. First one to sort different types of objects based on multiple fields contained in Map, other was to count chars and write them according to count like "aabca" => aa3b1c1 using Java8 streams. I was quite near to do first one, and second one fully done. In second round, the interviewer kept on searching for questions on google after joining call(asked me wait till he sends some email) :P Probably it was his first time, so kept on behaving like a product manager from Amazon, asked me open IDE, create maven project and write LLD of builder pattern in that :-D Later, asked me to code, gave a program to find pair of numbers from list which adds up to given number. I fairly easily did it using bruteforce and expected him for cross question and optimization. He asked about optimization and I optimized usng n minus first_number = second number approach, and probably he got baffled seeing solution. He didnt know about O(1) pass, and assumed that inside a list.get(), its not O(1). My solution was optimum and I checked after interview got over, but this game a feeling that It was only a interviw practice for newly Tech lead. Since I knew the direction where this interiew was heading to, I cut short the interview as he was sloooowly about to ask me to write code for another program, the one hour was alreadly wasted. He also tried to blame my slowness to write answers as interview could not be completed in 1 hour(first 15 min for his emailing ability during interview and other 15 for his super attitude slow voice were not even factors :P). I was adamant in first place to go for interview as had seen lot of negative reviews on glassdoor, but somehow went, and regretted. So, overall this was interview where I learned that while employees look for job, there are some who find training opportunity in that as well. Go select this at your own RISK. good luck