I applied through a staffing agency. The process took 1 day. I interviewed at Sawridge systems (Bengaluru) in Nov 2015
Interview
There were two round.
First round based on c++.
Ask About about yourself and Explain the current job profile and work.
Ther ask basic c++ question.
Data Structure.
Linux user commands.
IPC and question based on IPC
Secound round based on telecome.
Call flow
3G Architecture.
2G Architecture.
Describe the Node in 2G and 3G.
I applied through other source. The process took 1+ week. I interviewed at Sawridge systems in Mar 2016
Interview
The first round was telephonic and had nice conversation with interviewer. Mostly asked questions from LTE network and PCRF. Then next Skype round scheduled with director of engineering. Mostly asked questions from my PCRF project.