Jelmer graduated from the Theatre school in Amsterdam with a BA in Theatremaker, Technics and Theatre. During this course he took an internship as a design technician with the international Dutch company Dogtroep.
Jelmer gained further experience as a light designer with Theatre Company Suburbia, and as a sound and light designer for the opera, The Flying Dutchman. After his BA, Jelmer attended the Master Advanced Theatre Practice - Scenography at the Central School for Speech and Drama. Since then, he has worked as a light designer and scenographer for several Dutch and English theatre companies. Next to his design work, Jelmer also works as a freelance production manager.