Installation technicians work in a variety of industries and may be responsible for the installation of various services or products, such as computers, cable or internet networks, signs, swimming pools, alarm systems, and car audio systems. As an installation technician, you follow proper procedures and specifications on the placement of the system installation, test out the setup to ensure it works properly, and complete all required paperwork. You may also be responsible for troubleshooting, repairing, and upgrading the systems when necessary.