What is a Fiber Installation Technician? A https://www.fieldengineer.com/skills/fiber-installation-technician-ericsson ( fiber installation technician ) is responsible for installing new fiber networks for various telecommunications companies. Maintenance is also part of the job description and you’ll be expected to work in the field for most of the job. While it can be a full-time job under the brand of a telecommunications company, installations can be handled on a freelance basis as well.