Koi Swee Ling began her career at PETRONAS and is currently serving as a Staff Pipeline Integrity Engineer. With over 18 years of experience in the oil and gas industry, she excels in pipeline integrity and design engineering. Throughout her career, she has conducted numerous engineering assessments, including FEED deliverables, pipeline service conversion studies, fitness for service (FFS) evaluations, pipeline risk assessments, and pipeline life extension studies. Additionally, she has expanded her expertise into pipeline construction, serving as a Client Site Representative (CSR) during offshore pipeline installations. Since 2025, she has also certified as HRDF Accredited Trainer. She holds a BSc in Engineering (Civil) from Universiti Teknologi PETRONAS.