Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
Q&A for work
Connect and share knowledge within a single location that is structured and easy to search.
careers.stackoverflow.com only shows "Server Fault", "Super User", "Stack Overflow" and Stack Apps accounts. How do I associate askubuntu account there?
As of now, this is not possible. Please see this post on Meta.SO for more information.
As Korneel mentions, for a workaround, you can add your flair to one of the text fields that support markdown (though it isn't identical to the options for the Trilogy sites).