Warren was educated at Massey University, New Zealand, and at Roseworthy College, South Australia. He began his winemaking career in New Zealand in 1986 with John at Morton Estate, subsequently travelling the world as a Flying Winemaker, including vintages in Australia, Italy, Hungary, France and California.
In 1997, Warren rejoined John to work along side him. The vintages he has produced since then leave no doubt that he has truly earned the accolades of New Zealand Winemaker of the Year, from Winestate Magazine in 2005, and Winemaker of the Year Winemaker Award at the Mercedes Benz Hawkes Bay Wine Show in 2006.
Since 1998, Warren has been a regular judge at all of his country’s major wine shows.