The Electronics Technician Maintenance III performs advanced depot-level troubleshooting, testing, alignment, modification, overhaul, and component-level repair of complex analog and digital electronic systems, assemblies, subassemblies, circuit cards, power supplies, and associated test equipment. Ability to obtain and maintain the personnel security eligibility required for assigned work, up to a DoD Secret clearance, complete fit for duty requirement, and complete the physical and medical certification when assigned duties involve interaction with or handling of ammunition and explosives.