Eighth grade. One year of experience in the installation, troubleshooting, maintenance and repair of electronic equipment or systems such as CATV, CCTV and VHF and UHF radio communications, public address, intercommunication, aircraft ground control radios, and synchronized clocks is required. Must possess a CDL/Class B, or must provide proof of successfully passing the written portion of the CDL/Class B within six months of the probationary period and obtain a CDL/Class B driver license within the probationary period. Must be able to work a permanent or rotating shift schedule to include nights, weekends, and holidays. Applicants qualifying for employment with the Miami-Dade Aviation Department will be subject to extensive screening to include, but not limited to, fingerprint checks, employment verification, and other such procedures as may be mandated by federal law. The security clearance required by the federal law is a continuing condition of employment.