Once you are selected in any of the IT industry, they will assign you a team for the project. You will have your senior teammates, and Team Leader for your team.
You will be working in the technology which your area of interest is.
(If you are selected for the .Net developer, then you will be working in .Net technology)
And your team will be called as Development team. Likewise you will have a analyst team, Designing team, Testing team, Deployment team, Database administration.
If you are good in any other department apart from developing, then you ca move to that particular department.