Adjunct Professor – Norwalk Community College, Norwalk, Connecticut. Social Behavioral Science Department; Child Psychology; Adolescent Psychology; Educational Psychology; Social Psychology; Personal Growth and Development; General Psychology I; General Psychology II

Adjunct Professor – University of Bridgeport School of Continuing and Professional Studies, Bridgeport, Connecticut School of Continuing and Professional Studies; Growth and Development (Child & Adolescence); Introduction to Psychology; Cognitive Psychology; Social Psychology; Psychology of Wealth; Health Psychology; Abnormal Psychology and Forensic Psychology. Dr. Gruen also has experience teaching on-line courses.

Clinical/Educational Trauma Consultant – University of Connecticut Trauma Research Program.