Schedule SSIS packages as job in SQL Server Agent errors

Hi, I am using SQL Server 2008 R2 and created few SSIS packages and schedule them using SQL Server Agent and every time I try to schedule packages via SQL Server Agent my jobs keep failing. I am using domain/ione as the owner and when I invoke the job on ServerA let's say and the job gets executed by domain/ServerA$ and fails as it does not have enough privileges. How do I fix this issue firstly without the proxy and why is the job being executed by domain/ServerA$ when the owner & user who invokes it is domain/ione?

Thanks in advance............

Ione