Coinbase maintains strict controls over which internal employees can view your open orders. In order to troubleshoot issues or answer account inquiries, senior customer support administrators can view your account details. These administrators may only view your account history in the context of aiding with an account inquiry, and these account views are always logged.
Coinbase employees involved in trading or financial operations on behalf of the company do not have access to a user's open orders. Coinbase takes your privacy seriously and has strong restrictions over administrator access to your account details.