Deploy SQL agent jobs & Integration services dtsx

Hi,

I have an application that uses a SQL database, some DTSX's and some sql jobs (via sql server agent).

Now I need to move things to a SQL 2012 alwaysOn.

I'm used to create my jobs in only one server (just like I do on my dev server). Now that I have a alwaysOn cluster (2 machines) where will I create the sql server agent jobs? Only on principal machine or on all of them?

The "integration services" service is installed and running on both machines?

I'm a web developer with some SSIS packages do deploy and manage and I would like some guidance on the deployment to cluster.

Many thanks,

JD