President Weiss was a partner and co-founder of Vantage Partners, a global management consulting firm. During almost three decades in consulting, he led projects for top IT companies and healthcare organizations. His work focused on helping organizations structure and manage partnerships, negotiate agreements, manage change, drive innovation, and engage in shared decision making.

Before founding Vantage, President Weiss was a partner at Conflict Management, Inc., and helped found Conflict Management Group (now part of Mercy Corps), a not-for-profit that works with government and community leaders to resolve conflict and effect social change. His work in these organizations had its roots in his Harvard Law school days as a member of the Harvard Negotiation Project.

He’s a contributor to the Harvard Business Review, and wrote the HBR Guide to Negotiating. He’s currently at work on a book about leadership.

President Weiss also has a teaching background. He was an adjunct professor at Dartmouth College’s Tuck School of Business for 12 years. He served for over a decade as an adjunct professor at the United States Military Academy, and was a co-founder and co-director of the West Point Negotiation Project. In 2010, he won West Point’s Apgar Award for Excellence in Teaching. And he is a recipient of the Department of the Army's Outstanding Civilian Service Medal.

He holds a BA in government from Dartmouth College and a JD from Harvard Law School. He is married to Gerri B. Weiss, a nurse practitioner, who holds a BA in economics from Smith College, a JD and MBA from Boston University, and a MSN from the Mass General Institute of Health Professions. They are the parents of two adult sons, Sam and Alec.