Gillian Reyes is an Associate at Goldman Sachs in the External Investing Group (XIG), specializing as a Quantitative Strategist in Private Equity since July 2020. Prior experience includes serving as a Computer Science Teaching Assistant at Yale University, where responsibilities involved supporting CS courses, and functioning as a Calculus Peer Tutor. During a previous stint at Goldman Sachs as an AMD Strats Summer Analyst, work focused on the External Investing Group. Gillian's experience also encompasses a Quantitative Research Intern role at Landmark Partners, contributing to research on alpha generation in private equity, and analyzing investment performance. Additionally, Gillian managed the website for Abbey Aesthetics from 2013 to 2017. Educationally, Gillian holds a Bachelor of Science in Mathematics and Computer Science from Yale University.