Joce was a Jedi Master of the Miraluka male persuasion. He dedicated his service to the Jedi Order throughout the times of the Cold War and the Galactic War. These conflicts saw the Galactic Republic clash with the reconstituted Sith Empire.
Joce participated in the Battle of Corellia in the year 3640 BBY. During this battle, he fought alongside fellow Jedi Masters Rubatin and Injaye. They faced the formidable Emperor's Wrath, engaging the Sith Lord in combat; however, Joce and the other Jedi were ultimately overcome and defeated.