I have access at the site collections administrator level SharePoint server 2010 Ent, but no one will give me access to the server, only from the workstation, how to be?
It's normal, You can not develop SharePoint solutions (
Server Side Object Model) without having SharePoint installed on your local machine.
Only the SharePoint Add-ins is supported in the remote development.
The available workarounds,
Create a new SharePoint environment for development purpose, then let the SharePoint Administrator deploy WSP solution to your destination environment.
Check this workaround (Not tried) Develop SharePoint Solutions without installing SharePoint on Visual Studio
Work with SharePoint Addins via
Client-Side Object Modelor