Here I am giving you information about job opportunities after passing B.Tech in Electronics and Communication Engineering branch below :

Job scopes :
ASIC Design Engineer
Network Support Engineer
Test / Quality Assurance (QA) Engineer (Computer Software)
ASIC Engineer Trainee
Jr. Software Engineer (Trainee)
Programmer
Software Engineer -.Net
Business Analyst, IT
Developer
Jr. Embedded Engineer

Companies for employments are :
Bharti Airtel
Reliance Communications
Goldstone Infratech Ltd
Nu Tek
Krone Communications
Mobile Telecommunications Ltd
Valiant Communications
Tata Teleservices
Spice Communications
MTNL
XL Telecom & Energy Limited
Steel Authority of Indian Limited (SAIL)
Power Sector (NTPC / NHPC Ltd.)
Bharat Electronics Limited
Indian Railways
Indus tan Aeronautics Limited (ISRO)
Software Industries (ALL MNC’S) (HAL)