ATSEP is the acronym for Air Traffic Safety Engineering Professional (former Air Traffic Safety Electronics Personnel).

In the aviation community, ATSEP is the Air Traffic Management (ATM) Technical Staff in the field of aviation electronics and software used for the safety of air traffic.

ATSEP are mainly engineers, technicians, hard- and software specialists who are responsible for the

specification, procurement, installation, calibration, maintenance, flight testing and certification of ground electronic systems controlling aircraft movements.

At the more senior levels, they are employed in management and policy making technical divisions.