JPMorgan Chase

First, a take-home coding question with a time limit. LeetCode easy, I think. After that, a three-hour session. The people I spoke to were not really talking with me and only asking minimal questions, expecting me to fill up the rest of the time talk

I was sent an email to complete the online games. Immediately upon completion, I was sent an invitation to complete the coding challenge. The online games took around 30 minutes.

Total 3 rounds: 1st round: Basic questions on Java, mostly on threads, HashMap vs. Concurrent Map, what is failsafe, and how to implement a Singleton. Also, some basic Java questions. Second round: SOLID principles, some architecture questions, how