Installed, maintained, serviced, troubleshoot, repaired and operated secret military communication security devices. Rebuilt infrastructures and telecommunication closets using telephone equipment, fiber optic equipment, coaxial cable, and CAT cable within buildings, elevated structures and underground vaults. Constructed and modified blueprints and schematic diagrams. Operated manual and pneumatic machinery. Erected and climbed towers; stringed overhead communications and electric cables between utility poles; built and installed antennas and satellite dishes. Kept accurate logs on job of all work related information.