Applied online and received an email from recruiter about moving forward with the first round. On the day of the first round, I talked about my previous work and moved onto the coding round. They asked me a LC medium but it was a fairly easy one so I was able to code it up optimally with no issues. I talked about some of the different ways I could solve it from brute force to optimal solution. However, the next day I received a rejection...

Deep dive into past projects, anything that is relevant in software development would be asked, not only backend development. Then the interviewer posed questions about basic concepts and terminologies like locks, process management, memory management, database sharing etc. Ended with a medium Leetcode problem.