Educated as an architect from Syracuse University, Mattis practiced for 8 years designing projects ranging from corporate high rise headquarters for Price Waterhouse Coopers, 

an estate in Bel Aire, to a full floor apartment in the Sherry Netherland on Central Park. 

Taking a sabbatical from architecture, he explored the architecture of bodymindheartsoul~  practicing as a Fitness Trainer, Yogi, Coach and Director at Sweat Fitness from its inception as a garage gym in Old City to now 8+ locations in Philadelphia. 

He is a practitioner, student and teacher of Anusara Yoga; and is currently studying with one of the worlds most renowned experts on Kashmir Shaivism and Hindu Tantra, Professor Paul Muller Ortega, in his Entering the Heart of Shiva year long program. This powerful year of study and practice is a journey of discovery in the core teachings of tantra, profoundly transforming life and awakening to bliss.

His work is a collaboration of Architecture, Fitness, Yoga and Personal Development 

connecting Body Environment & Life Style from Inside Outside.

He has been recognized in Allure, Zinc, Philadelphia, Philadelphia Style magazines; 

voted top trainer by Philadelphia Style & Men’s Journal  as “America’s “Top 100 Trainers”.