Jun Zhang is an accomplished scientist with extensive experience in process development and engineering within the biopharmaceutical sector. Currently serving as Associate Principal Scientist at Merck since August 2025, Jun Zhang previously held several key positions at Promega Corporation from May 2018 to August 2025, including Team Lead for Process Development Staff Scientist, where responsibilities involved leading process chemistry and analytical functions for drug substance development focused on major depressive disorder treatments. Additional roles at Promega included Senior Process Development Scientist, overseeing large-scale biopharmaceutical processes, and Process Research Scientist positions, contributing to the manufacturing of COVID test kit reagents and the design and optimization of organic chemistry processes. Prior experience includes serving as a Graduate Teaching Assistant at Michigan State University while earning a Ph.D. in Organic Chemistry from the same institution, following a Bachelor's degree in Chemistry from Nanjing Normal University.
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