noun
ADJECTIVE
▪ chief , senior
▪ experienced , skilled
▪ qualified , trained
▪ trainee ( BrE )
▪ lab ( informal ), laboratory
▪ dental , medical
▪ computer
▪ lighting , sound
▪
He works as a sound ~ in a recording studio.
▪ ultrasound , X-ray , etc. ( esp. AmE )
▪ maintenance , service , support
▪
a computer support ~
▪ ambulance ( BrE )
VERB + TECHNICIAN
▪ train
▪
a need to train ~s in construction methods