Brunei Darussalam 22 April 2013 Engineer Domingo Caayao has been in the oil design and engineering industry for 28 years now. He is currently the Control and Automation Engineering Manager of Petrokon Utama in Brunei Darussalam. He was also the Lead Engineer in Instrumentation and Control Systems both in designs and engineering of oil and continue reading : Interview with Mr. Domingo E. Caayao