Under general supervision, performs difficult and complex electrical work in the installation, maintenance, and repair of electrical and electronic components in water and/or wastewater plants, pumping stations, and related facilities; leads and instructs lesser skilled workers on the job; and does related work as required. Performs tests on electrical and electronic equipment such as transfer gear, p c boards, microprocessors, and E-proms by using multimeters, transistor checkers, line testers, carrier frequency meters, oscilloscopes, and other test equipment to diagnose problems and make corrections as required.