Ernst Bonis taught at conservatories in the field of electronic music, sonology, sound synthesis, organology and music for carillon-automat and worked at the Dutch Carillon School. Bonis was there at the birth of the Education Music and Technology of the Utrecht School of the Arts and was curator of music-instruments at the Gemeentemuseum Den Haag.
Bonis worked for Nederland Muziek (Oberheim synthesizers), Manufacturers Centre Holland (ARP synthesizers), Yamaha Benelux, Koninklijke Eijsbouts Klokkengieterij, Holland Village Huis ten Bosch Nagasaki, Nationale Reisopera and ArtEZ Conservatorium. He wrote for Muziekkrant OOR, MIDI Magazine, Keyboards & MIDI, Computer Music Journal and Interface. He is known for his improvisations on various synthesizers and generative compositions for electronics and automatic carillon.
For Tanzen auf dem Malerwanderweg (Dancing on the Painters Trail) Ernst Bonis designed new technology and electronic compositions as connecting links between dance, motion, music and light animation.