A sound engineer operates equipment and software used in the production of on-air radio programs, recorded audio programming, recorded music, concerts, conferences, sports events, and other live gatherings, as well as television programming, film, and video material.
The responsibilities of a sound engineer include setting up and taking down the equipment, recording music, speech, and natural sounds, editing and mixing audio tracks, and exporting the audio to a variety of formats.
A sound engineer needs to be familiar with a variety of hardware equipment like microphones, soundboards, soundproofing material, radio transmitters, computer monitors, and speakers, as well as sophisticated audio editing software like Adobe Audition CC.
Similar job titles include: sound technician, audio engineer, broadcast technician, sound engineering technician, production technician.
Source: Bureau of Labor Statistics, U.S. Department of Labor, Occupational Outlook Handbook, Broadcast and Sound Engineering Technicians,on the Internet at https://www.bls.gov/ooh/media-and-communication/broadcast-and-sound-engineering-technicians.htm