Heejoon Ahn is a data scientist at Northwell Health since December 2020, with prior experience as a Senior Clinical Data Analyst. At Geisel School of Medicine at Dartmouth, Heejoon served as a Graduate Teaching Assistant and a Graduate Research Assistant, conducting research in infant sleep behaviors and teaching data wrangling and visualization. Heejoon also held a Graduate Research Assistant position at Thayer School of Engineering, where involvement included developing a Shiny application for antibody research. Previous roles include research and tutoring at Colby College, where significant contributions were made in computational physiology, organic chemistry, and developmental psychology. Heejoon earned a Master of Science in Quantitative Biomedical Science from Dartmouth College and holds a Bachelor's degree in Computational Biology from Colby College.