Release Engineer Growth and future prospects

Hi, I am B.Tech fresher in computer sciences & engg.Recently through an interview I was selected for the post of 'Release Engineer Trainee' on a probation/contract period of 6months and they stated that this post will be made permanent after the 6months based on our performance.
I was told that I will be working on 'packaging'.As I am a fresher,I donot have any idea about the growth and future prospects in this particular thing.So,could anyone acquaint me in this aspect.