He studied Beaux Arts, Corbett-Gugler, Atelier, between 1915 and 1917, earned a diploma from the International Correspondence School in 1918.
He earned a diploma from Cooper Union in 1917. In 1956, his office was located at 36G Broadway, New York City. Anthony DePace left the firm of Cass Gilbert in 1923 and formed DePace and Juster with Juster.
The firm continued in practice until 1947 when the partnership was dissolved.
Juster claimed in 1956 that the practice was established in 1925 and disestablished in 1948. Juster established his own firm under his own name in 1948, a year after DePace had done the same suggesting DePace disbanded the partnership and Juster was slower to reestablish himself.
Juster was registered as an architect in New York and New Jersey. In 1956, he claimed his principle works were an Office Building at West 46th Street, New York City (1928 as DePaul & Juster), plans for a Refrigerating Plant, Hudson River State Hospital, (1948), a Tubercular Hospital, Hudson River State Hospital (Poughkeepsie, New York) (1951 as DePaul & Juster), built by the State of New York, the Yeshirah of Flatbush Parochial School & Auditorium (Brooklyn, New York) (1951).
Shaare Torah Community Buildings (Brooklyn, New York) (1954), Traymore Hotel Outdoor and Indoor Swimming Pools (Atlantic City, New York) (1954, demolished 1972).
Number changes were made in the second edition of the American Architects Directory, published 1962. The firm of Samuel Juster, American Institute of Architects was listed as active in the third edition of the American Architects Directory, published 1970, but a response to the questionnaire was not filed. 1929 (issued 1930): Certificate & Gold Medal, Fifth Avenue Association, for De Salvo Antique Shop.
Juster"s former partner, DePace had a prolific career as a designed of Roman Catholic buildings, Juster appears to have balanced out the firm"s portfolios with non-Catholic commissions, including many Jewish commissions.
Between the first (1956) and third (1970) editions of the American Architects Directory, he made no changes to his original entry, including prominent commissions. He did not file an entry in 1970 but most of his 1956 commissions were as DePace & Juster.