Looking for a plugin or solution

Hi everbody.

I’m creating a wordpress website for a company. its a corporate website also using the blog functionality of wordpress, so a few users/staff members posting on the blog with their usernames.

I also have a “staff”/”team” site on this website. each staff member should have his own profile page/detailed page.

Now I want to link each team member to his wordpress user account and back. In both directions.
Also I want to have the option to add more data to the users like social network accounts, position, bio etc.

is there any plugin? I found some plugins, but there lacking in the linking function (WordPress user <- -> Staff Site)