Jess is Director of Carollo Engineers’ R&D Practice and leads Carollo's Biological Drinking Water Treatment Program. He has 18 years' experience in water, wastewater, and reclaimed water treatment specializing in process, technology, applied research, and water quality testing methods. He is a former chair of the AWWA Biological Drinking Water Treatment Committee and chair of the 2013 and 2016 AWWA Biological Treatment Symposia.