He was born and schooled in New York, and returned to the area to make his living after leaving Chicago. Armas had a long and successful career in MLS, mostly with Chicago Fire - experience with whom is increasingly looking like a prerequisite for a back room job with RBNY. (Jesse Marsch and Denis Hamlett are distinguished former Fire men; John Wolyniec played a couple of short stints in Chicago, at a time when Armas, Marsch and Hamlett were all part of the club.) Armas also had a distinguished run with the US Men's National Team (66 caps).
His coaching experience since retiring has included a season as an assistant to Hamlett in Chicago and a solid run as the head coach of the Adelphi University (his alma mater) women's team.