Zentex is finnish producer Jari Marjamäki. Born in Turku, Finland, he moved in the early 90's to Lisbon, Portugal, where he's currenly based. His career in music took off in the mid-nineties, when his interest in the fast-growing electronic music scene led him to adquire electronic equipment and he started programming and creating music on his own.

After playing some time with locar indie and rock bands, by the year 2001 he created his Zentex alias, in which he concentrates mainly in expressing his vision of minimal electronica, techno and deep microhouse sounds, as well as occasional ambient workouts. He's had no trouble in adapting this solo project into a fully featured one-man live act, and he has since performed in some of the major portuguese clubs and events, including festivals Numero Festival, Boom Festival, SBSR, Optimushype @ Meco, Blue Spot, as well as major clubs like Lisbon's Lux and Ofir's Pachá. He's performed abroad in events like UMF festival in Finland and at Barcelona´s The Loft Club. He has shared a slot with a long row of international artists, names like Miss Kittin, Thomas Brinkmann, To Rococo Rot, Luomo/Vladislav Delay, Sami Koivikko, Legowelt, Jori Hulkkonen, Zombie Nation, among many others. He has released his music in Cologne's Traum label, and has several other releases scheduled by the end of the year.

Marjamäki is one of the founders of Pulsar, a Lisbon based artist collective and a club organization, that is responsible for some of Portugal's most vibrating electronic music events during recent years. Currently he is busy deejaying (as dj Yari) and playing live with his many projects(Strip, PeakPong, 3 Wyze Men, Ballet Mecanico), and his other activities include running Pulsar's clubnights, organizing improvised electronic music sessions, and working with different visual and performative artists. For two years, he also hosted, with Nuno Bernardino, a weekly radio show in Lisbon based Radio Oxigenio, featuring electronica, electro and techno.