Responsible for installing, maintaining, and repairing fiber optic systems and networks. Splicing fiber optic cables, testing for faults, and troubleshooting connectivity issues. Installing and configuring network equipment, such as switches and routers. Testing fiber optic systems to ensure they are functioning properly. Performing optical loss tests, measuring insertion loss, and testing for reflectance and crosstalk. Use specialized testing equipment, such as optical time domain reflectometers (OTDRs), to perform these tests. The results of these tests are used to verify that the fiber optic system meets industry standards and specifications.