In WordPress you need to use advanced plugin if you have to maintain multiple staff member. One of the best plugin to easily add Staff member profiles in WordPress is Staffer-A plugin that adds staff management and custom staff profile pages. These plugin by default works with many theme but you can also use your own design or CSS too.
First of all get the plugin from above link and install it. After activating the plugin go to Settings->Staffer Options and det the page and design in here.
To add a new staff member go to Staff->Add new menu. You can add staff name and details, social information, photo etc. you can access all of the list of staff member in yoursite.com/staff/ page.