Later, Jamie began to release solo work as Matrix on various other Drum and Bass labels, beginning around 1994. Since then he has DJed worldwide and produced many records, including several for his own label, Metro Recordings. He has also remixed records for the likes of Justin Timberlake, Annie Lennox and Robbie Williams.
Further musical partnerships have seen him make a foray into the world of house music as one half of Goldtrix, who had a UK top ten hit with the single "Trippin".
His brother, Matt, is also famous in the drum and bass world as Optical. Jamie's debut LP as Matrix, Sleepwalk, was released on his brother's label Virus Recordings in 2000. More recently, Jamie has collaborated with Liverpool based producer, Brendan Collins under the name Matrix & Futurebound resulting in the 'Universal Truth' album, released in the summer of 2007.