Jason Weston received a PhD. degree in Machine Learning at Royal Holloway, University of London (advisor: Vladimir Vapnik) in 2000, where he also worked as a research assistant.

From 2000 to 2002, he was a researcher at Biowulf technologies, New York, applying machine learning to bioinformatics. From 2002 to 2003 he was a research scientist at the Max Planck Institute for Biological Cybernetics, Tuebingen, Germany. Since 2004 he has been a research staff member at NEC Labs America, Princeton.

Jason Weston's current research focuses on various aspects of statistical machine learning and its applications, particularly in bioinformatics and text.