The Army and Marine Corps call their enlisted job specialities, "MOS's," or "Military Occupation Specialties."
Below are the Army MOS's that fall into the Electronic/Missile Maintenance Field:
94A - Land Combat Electronic Missile System Repairer
94D - Air Traffic Control Equipment Repairer
94E - Radio and Communications Security (COMSEC) Repairer
94F - Computer/Detection Systems Repairer
94H - Test Measurement and Diagnostic Equipment Maintenance Support Specialist
94K - APACHE Attack Helicopter Systems Repairer
94L - Avionic Communications Equipment Repairer
94M - RADAR Repairer
94P - Multiple Launch Rocket System (MLRS) Repairer
94R - Avionic and Survivability Equipment Repairer
94S - PATRIOT System Repairer
94T - AVENGER System Repairer
94W - Electronics Maintenance Chief
94X - Senior Missile Systems Maintainer
94Y - Integrated Family of Test Equipment (IFTE) Operator/Maintainer
94Z - Senior Electronic Maintenance Chief

