Olan Oka is an experienced Project Manager currently working at PT. Hutama Karya (Persero) since December 2013, with a focus on various infrastructure projects including water supply systems and road construction. Previous roles include Deputy Project Manager and Site Engineering Manager on significant projects such as the Tol Tebing Tinggi - Parapat and Pesonna Hotel Pekanbaru. Olan's expertise extends to engineering estimation and construction management, developed during earlier positions at Pusat Studi Ilmu Teknik (PSIT) UGM and JTSL FT UGM. Olan holds a Bachelor's degree in Civil and Environmental Engineering and a Professional Engineering degree from Universitas Gadjah Mada (UGM), and is currently pursuing a Master's degree in Construction and Infrastructure Management at Institut Teknologi Bandung.