The interview process at e-con systems is one of the most difficult interviews ranging from 1 day to even 3 days. There are basically two roles in this embedded company namely software and hardware and the interview process goes according to the need. For hardware it was three rounds. Round 1: it was divided into two phases. 1st phase was a 1.15 hours circuit designing and objective type questions purely on electronics. 2nd phase was a 45 mins puzzle round. Round 2: This is the most difficult round- Technical HR. It can last even for 3 days and the minimum time will not go below 3 hours at least. Once it is cracked, its a 95% chance of getting placed. Round 3: HR. it was a bit both of personal as well as technical not exceeding 1/2 hr. Once this is over the salary and other stuff will be discussed.