MiQ Senior Software Engineer interview questions

I went through almost 6-7 rounds in 2 days. Please find below the interview details a) There was a Hackerearth coding challenge going on a weekend. So, I gave that challenge and was able to solve both the problems. Yes, feedback was +ve of the test. Recruiter contacted me for my availability to proceed with my candidature. Unfortunately , it was Christmaas week. So, I had to go for the interview on 2 different working days. HR scheduled my following rounds of interview. It was onsite interview. b) 2nd round of interview at MiQ Bangalore office. I could attend only one round of interview due to bit of misunderstanding in timings , also I had taken half day leave due to working day. About interview, it was really a good discussion. It was a bi-directional discussion, especially we both of us were solving the problems. He covered coding questions especially data structure problems using Linkedlist , Tree and few puzzles. Then, we discussed about my current project , and few concepts of REST API and Spring. The discussion continued almost for 1.5 hrs. Then I left for the day. I had to go again on another working day. It was actually a long day. c) Another round of technical discussion , again based on coding skills, DS , Algorithms and System design (HLD + LLD both) d) Had a discussion with Hiring manager , this was a technical discussion again on System design. e) Discussion with HR Head on behavioral skills and how I am going to be fit at MiQ , and few other things. Then I came back , but another round of skype round was scheduled in the evening with director of engineering team. f) This round was mostly on organization roadmaps , tech teams and which team I wanna choose and why . Few in general stuff with respect to process. One thing I realized, people at MiQ are very young. Avg age is 25-26. if someone is beyond that age, they are so fit , you won't get that feeling that they are aged or something. Finally, I got the mail from recruiter to share relevant documents. By next day EOD, I got offer from MiQ. I am really really grateful to HR and other panelists . To be honest, I also didn't expect for such quick turn around considering the fact that I just had 1 day to LWD at my current organization.