Gaspar was a long-time assistant and consultant to Carlos Queiroz with whom he co-authored Project 2010 for the USSF in 1998, with the goal to create a blueprint for long-term improvements in US soccer.

Gaspar was the head coach of University of Hartford men's soccer team between 2005 and 2010.

He was also the associate head coach of Central Connecticut State University men's soccer team.

He also founded the Star Goalkeeper Academy in 1995, and he took over the Connecticut Soccer School in 2004 with the aim of bringing his international coaching expertise to the youth level.

[3] In September 2022, Gaspar joined Hartford Athletic as assistant and goalkeeping coach alongside Tab Ramos and Omid Namazi.