 Glaser headed the Design Department of Werner Textile Consultants (1949–53).After his graduate studies Glaser spent his entire full-time professional career with Arthur D. Little, Inc. Glaser's professional papers and some of his personal papers (32 cubic feet in 96 boxes) are on deposit with Massachusetts Institute of Technology Library Archives.He was project manager for the Apollo 11 Lunar Ranging Retroreflector Array installed on the lunar surface of July 20, 1969, and two other arrays installed on subsequent missions — the only science experiments still in operation on the Moon.