It was a good interview with medium-to-difficult questions. It took 4 rounds of technical interview. You should have strong fundamentals and analytical thinking to crack interview. You need to demonstrate your experience and skills smartly and apply your skills wisely.

Recruiter contacted me via LinkedIn, followed by phone screen with the Hiring Manager. Within couple of weeks received a call to appear for an on-site interview. The time between being contacted for the first time and receiving a final decision regarding an offer/rejection was about one month.