Ester Do started with DLS in 1993 working at Queen’s Medical Center – Punchbowl. She has served in various leadership positions at Diagnostic Laboratory Services (DLS), most recently as director of Core and Hospital Laboratories, manager of QMC West Oahu, coordinator of CSS, Decentralized Laboratory Testing and Perioperative Tissue Bank and supervisor of Satellites Operation. She holds the rank of lieutenant commander in the United States Navy Reserve and serves as a Medical Service Corps officer. Do has a Master of Arts degree in management and a Bachelor of Science degree in medical technology from the University of Hawaii.