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Umar Fachreza is a data scientist at SICEPAT EKSPRES INDONESIA, with experience spanning multiple roles in telecommunications and data analysis. Prior positions include working as a 2G/3G/4G PLO for Newsite Project Telkomsel at PT Velacom Indonesia, where responsibilities included site acceptance, KPI analysis, and providing recommendations for site optimization. Additionally, Umar served as a junior radio network optimization engineer at PT IMMOBI Solusi Prima, contributing to Ericsson Telkomsel projects, and began a career in transmission engineering at CNN Indonesia. Umar holds a Bachelor's degree in Telecommunications Engineering from Telkom University and completed a training program in radio network optimization.