Tejo Wahyu Jatmiko was educated in geography at Gadjah Mada University in Yogyakarta, from where he graduated in 1990. Prior to his graduation, Jatmiko worked as an assistant geographer and an assistant hydrogeologist at IWACO BV Consultant. He then worked as a hydrologist at the PT. AEROVISI UTAMA Consulting Firm in Jakarta (1990-91) before joining the PT. ENVICON Consulting Firm in Jakarta, where he has served as Project Manager/Branch Manager for Sumatera Region, Technical Manager, and Assistant to the Director. Jatmiko currently serves as Executive Director of the National Consortium for Forest and Nature Conservation in Indonesia.

Jatmiko has taught numerous seminars at various universities and businesses, including Basic Environmental Impact Assessment (Indonesian University, 1992), Management Course for Young Engineers (British Council-INKINDO, 1994), Ethics in Consulting Services (INKINDO, 1994), and The Jakarta Groundwater Management (Tarumanegara University).