Connecticut Department of Developmental Services

He served on the full-time faculty of Ramapo College of New Jersey for five years and spent 15 years as an adjunct adjunct faculty member teaching applied behaviour analysis in Assumption College's Masters in Education program.

He's worked as a behaviour analyst with the Connecticut Department of Developmental Services at the Judge Rotenberg Center and for the EastCon Autism Project.

He was a licensed psychologist who specialised in precision teaching and standard acceleration charting as a framework for curriculum design and progress tracking.

He has designed an Excel system for curriculum development with practice sheets.