Ability to work in a variety of circumstances, including but not limited to standing, walking, bending, kneeling, crouching, crawling, climbing ladders, scaffolds, and high-lift equipment; working in ducts, crawl spaces, roofs, basements, above ceilings, and in outside/inside/heat/cold/day/night conditions. Install, program, and configure commercial electronic security systems for commercial clients (door access control, CCTV, intrusion detection, low voltage communication, electronic locks, point sensors, signaling devices, etc.).