Retired Network Engineer due to disability. I did design, test, install, and maintain surveillance systems, VoIP systems, wireless networks, and business networks (firewall, security, servers, domains, computers/laptops, wireless). I have installed and maintained Windows & Linux servers, Exchange servers, multiple varieties of healthcare related servers (x-ray, laboratory, etc.). I have also configured, installed, and maintained firewalls, routers, switches, modems, and wireless controllers.