David Zarfes teaches contracts, business, transactional law, and ethics classes, and heads the Law School's Kirkland & Ellis Corporate Lab.

Prior to joining the Law School faculty, Professor Zarfes was, for many years, Executive Vice President and General Counsel of Paris-based Cap Gemini Ernst & Young (CGE&Y) and a member of the firm’s Management Committee. He was responsible for the management and supervision of the CGE&Y legal departments in North, Central, and South America and, among other things, for overseeing complex information technology transactions, joint venture and alliance agreements, new ventures and venture capital transactions, national and international outsourcing agreements, major litigation matters, and corporate governance and general business matters. Professor Zarfes previously practiced law with Orrick, Herrington & Sutcliffe LLP, where he specialized in corporate, information technology, and cross-border transactions. He has an extensive background in acquisitions and joint ventures, corporate governance and compliance, significant corporate and IT transactions, including in the area of IT consulting services, systems integration, technology development and design, and global outsourcing transactions. He has taught classes in these areas at Columbia University Law School.

From 2007 to 2013, he was Associate Dean.

He has published two books on contracts, Contracts: A Transactional Approach and Contracts and Commercial Transactions, Aspen Publishers 2010 and 2011, each with University of Michigan Professor Michael Bloom.