Barry Liner is the Chief Technical Officer (CTO) of the Water Environment Federation (WEF). Dr. Liner is responsible for leading the WEF Water Science & Engineering Center, as well as innovation and resource recovery initiatives including the Innovation Pavilion at WEFTEC and WEF’s partnership with UNLEASH. Before joining WEF, Barry served as Assistant Professor and Director of International Engineering Programs at George Mason University, where he founded Engineers for International Development. Previously, he led change management efforts at AEM Corporation and managed support regulatory support projects for the USEPA’s Office of Water and IT projects for both public and private sector clients. He also served at the World Bank, developing a protocol to monitor and evaluate progress towards the water and sanitation targets of the Millennium Development Goals, and as a management consultant at Black & Veatch. Barry is a licensed Professional Engineer (PE) and Board-Certified Environmental Engineer (BCEE).