Fei Cai, Ph.D. in Biochemistry, is a Scientist III at Genentech. She worked in Dr. Cheryl Kerfeld’s group as a postdoc and then as a project scientist for many years at UC Berkeley and Lawrence Berkeley National Lab in synthetic biology and protein macromolecular assemblies. She joined the diversity display lab led by Dr. Yingnan Zhang at the Department of Early Discovery Biochemistry in Genentech five years ago. Since then, she has been involved in many projects in the effort of discovering therapeutic-peptide binders for disease-related targets, using phage display, yeast surface display, and mRNA display as technology platforms. She is also involved in collaborative projects with DeepSeq.AI for better peptide libraries.