Hi

To get a job in CCMB, you need a higher degree than B.Tech generally. I am sharing a link with you from where you can check the positions they are offering and eligibility for same. You can join CCMB for research purpose too.

Go to the CAREERS section of this link and check the positions offered by them. You will see other details like eligibility, salary, mode of selection etc.
CCMB Careers