Lemuelle L. Labadan has over 7 years of experience in UMTS/3G network optimization. He has worked on optimization projects for Globe Telecommunications in the Philippines, focusing on the National Capital Region, South Luzon, North Luzon, and Mindanao regions. His responsibilities included drive test analysis, parameter optimization, capacity management, and resolution of customer complaints. He has expertise in using tools like TEMS, Nemo Outdoor, Actix Analyzer, and MapInfo.