If all your staff members will be Tiki "Users" and therefore each have Tiki Accounts. Then the feature you are looking for is called the "User Tracker". Essentially this uses the Database feature called "Trackers" and allows you to create any for to collect additional features from each user when the register and also after they've registered.
In order to keep things flexible, there is no Pre-Set definition of what a Staff Database should look like. But the good news is that using the Trackers feature, you as an Admin of Tiki can quickly create this form with little knowledge of Databases.
I suggest you visit this link from the documentation