Show last post of employee in his profile page

Question

You can use the following code to get the most recent post by a given Author, just un-comment one of the two lines as appropriate. See the Codex for more info on WP_Query.

The Codex entry is pretty long, so scroll down to the Parameters section for more info on the various options you can filter your query with.

$query = new WP_Query(array(

    // get most recent post by Author's nickname (not username!)
//    'author_name'    => 'Joe'

    // get most recent post by Author's ID
//    'author'         => 7,

    'posts_per_page' => 1,
));