I like fishing the "seams" of a current. In this situation I like to start fishing from the middle of the jetty and casting toward the current that's coming around the jetty tip, letting my plug get swept along the current, away from me. As the line tightens the plug will start to swing toward the seam, toward the calmer water. It is here that you'll likely get a hit as the fish tend to hold outside of the currect, in the eddy that the jetty creates.
A slow-sinking plug such as a needle fish, eel or Slugo works exceptionally well in this situation. Let the plug get swept in the current and once it reaches the eddy it will slowly fall. Stay connected with your plug because this is the time it should get eaten.