[1] His experimentation with electronic music began in 1994 after he was introduced to a digital sequencer application called Scream Tracker.

His popular works include remixes and original trance productions since landing his first recording contract in 2001.

They include Scarab, First & Andre (together with his brother),[2] Ozone, Moon, Inner State, J., J.E.Z.P., J.L.N.D., JZ, Loken, Mono, Narthex, One Man Army, Parc, Rah, and Mika J.

Together with longtime friend Tommie Podzemski, he hosts the weekly Swedish podcast "Slashat"[7] where tech, IT, gadgets and web related news are being discussed.

On 5 March 2010 it was reported that Jezper emailed Apple CEO Steve Jobs directly, asking if iPhone to iPad tethering was possible.