Senior IT managers have many of the same functions as managers in other fields, except they specialize in the IT industry. Managerial tasks you can expect include budgeting, supervising staff, coordinating resources, ensuring targets are met, etc. While you may mainly be performing managerial tasks, you do need to have expertise in IT and more specifically, the IT products your company offers. This will allow you to manage your teams more effectively. Take a look at this successful resume sample.