3 rounds , first with HR then technical and finally a more detailed interview which was scenario based along with some hands on code .Prepared components diagram and also system architecture

it was not good. I answered only 50% questions. They are expecting an end to End Architect. In the technical round they asked a lots of question related to the BSS domain and its end to end Architecture. How a Number will be activated and how to it will charged. And also how to manage the Fraud.

waste of time high level position only internal transfer no hope, 4 interview once reach to offer they said internally hired its happened 4 times with 3 different country Singapore Malaysian and Thailand