Purnomo is an Indonesian citizen, born in Surakarta in 1970 (52 years old). 

He completed his Civil Engineering education at Sebelas Maret State University in 1994 and Master of Management at Lambung Mangkurat University in 1997, Master of Law at Bhayangkara University Jakarta in 2022 and Professional Engineering Program at Gadjah Mada University in 2022.

Widyo Praseno served as Director of Operations II, previously he served as EVP of Building Division concurrently as EVP Legal at PT Hutama Karya (Persero) from 2020 - 2022. Occupying a position as Head of Building Division of PT Hutama Karya (Persero) (2017-2020). Senior Manager II of Production and Resources of Road and Bridge Division of PT Hutama Karya (Persero) (2014-2017), Senior Manager II of Engineering Section of Road and Bridge Division of PT Hutama Karya (Persero) 2014.