Heidi Casini

Heidi Casini, MBA, SHRM-SCP, is a seasoned HR professional with extensive experience in human resources operations and employee relations. Currently serving as Senior Vice President and Head of HR Operations at Two Sigma since August 2025, Heidi previously held various HR leadership roles at Bridgewater Associates from January 2014 to July 2025, including Sr. Director of HR Operations and Chief of Staff. Prior experience includes serving as Human Resources Director at Advanced Radiology Consultants and holding HR-related positions at Sikorsky. Heidi earned a Bachelor's degree in American History, graduating Cum Laude from Post University, and a Master of Business Administration in Human Resources Management, also graduating Cum Laude from American InterContinental University.