If you are referring to show the link to your Careers account on the list of your [accounts][1], by design that is not show in that list.  
That list reports your account's links to Stack Exchange sites where you can gain reputation. Careers is not a Q&A site, and the link to your Careers' account is not shown anywhere in your profile page.

You can add the link in the "About Me" section of your profile.

  ![screenshot][2]




  [1]: https://stackoverflow.com/users/1262628/liordino-neto?tab=accounts
  [2]: https://i.sstatic.net/aAFGr.png