Philip has a wealth of experience in a wide variety of mathematics including statistics, mathematical biology, constraint-based geometry systems and symbolic algebra algorithm development. He is the founder and president of Saltire.

Before founding Saltire, Phil was a Principal Software Engineer in the Computer Graphics department of the Tektronix Computer Research Labs in Beaverton, Oregon.

Phil has degrees in mathematics from Cambridge University and Georgia Tech, and a Ph.D. from Dundee University with a thesis in the computer modeling of the folding of the cortical surface of the brain.