[3] Prior to his appointment at Yale in 2003, he taught at Carroll University, where he was Director of Choral Activities, and also served on the conducting faculties of Smith College and St.
He also currently serves as Musical Director of the Yale Alumni Chorus and was formerly Choirmaster at the Cathedral of St. Joseph (Hartford, Connecticut).
An advocate of new music, Douma established the Yale Glee Club Emerging Composers Competition[5] as well as the Fenno Heath Award,[6] and has premiered new works by such composers as Bright Sheng, Dominick Argento, Ned Rorem, Lee Hoiby, Joel Thompson, and James MacMillan.
[3] Active as a clinician and guest conductor with musicians at all levels, he served four years on the conducting faculty at the Interlochen National Arts Camp.
As a singer, Douma has appeared as an ensemble member and frequent tenor soloist with many of the nation's leading professional choirs, including the Dale Warland Singers, Bella Voce (group) of Chicago, the Arcadia Players, the Oregon Bach Festival Chorus under Helmuth Rilling, and the Robert Shaw Festival Singers.