Deploy Timer Jobs To Specific Servers

Hi,

I have SharePoint environment consist of web, application and database servers. I have created a custom timer job service that is doing certain job. I have deployed it to certain web application so it found it running on all servers that are running the"Microsoft SharePoint Foundation Web Application" service. 

The issue is that I want to run this timer job only from the application server which is not running the "Microsoft SharePoint Foundation Web Application" service and I want to disable it on the rest of servers.

So what Shall I do. 

Regards,

Ehab

Ehab