They tried me to hire for a position that wasn't even finalized so I said "no thank you I don't want to waste your time and my time" then they convinced me with decent salary and gave me an offer letter so I would stick around. I waited for soooo long(4month) then they stop contacting me, no replies.

A thorough interview process that includes interview with technical principals along with management. You also get a chance to interview with the owner of the company as well. Interview process doesn't take long and a decision on hiring is reached quickly.