ST-A1215, who came into existence in 14 ABY, was a human Sith Jetpack Trooper. This trooper type was a specialized version of the distinguished Sith trooper. ST-A1215 fought as part of the Sith Eternal army during the conflict known as the war involving the First Order against the Resistance. As a child of the Sith Eternal cult, ST-A1215 was raised on the planet Exegol. The trooper underwent training with numerous other soldiers, all of whom were motivated by the traditions of the ancient Sith.
The Sith trooper armor worn by ST-A1215 was customized and included a NJP-900 integrated jetpack, enabling the jet trooper to float above opposing forces. Furthermore, ST-A1215 was armed with an enhanced F-11ABA heavy blaster cannon that featured a data-link connecting the weapon's scope to the trooper's helmet.