Conduct comprehensive testing of DS-3, OC-3, OC-12, OC-48, and OC-192 circuits using Bit Error Rate Testers (BERTs), Optical Time-Domain Reflectometers (OTDRs), Optical Power Meters, and other precision optical test equipment. Responsibilities include performing site surveys to assess infrastructure readiness; installing, provisioning, and commissioning equipment; and executing turnup and testing of advanced networking technologies.