Mr. Koestijanto is the Operation Director of BITA ENARCON ENGINEERING. A Civil Engineer by education, he graduated from the Bandung Institute of Technology in 1991. Mr. Koestijanto has more than 20 solid years of professional experiences in consultancy services. Currently, Mr. Koestijanto is the Quality Representative of BITA, and member of HATTHI and HATTI, holder of G1 certificate/license.