Chris Sauer is a Senior Mass Spec Assay Development Scientist within the Cell Engineering and Analytical Sciences group at Johnson & Johnson Innovative Medicine. He works to develop LC/MS-based assays for the analysis of metabolites, host cell proteins, and antibodies to support the development and production of biotherapeutic antibodies. Previously he worked in Prof. Lingjun Li's lab at the University of Wisconsin studying neuropeptides by mass spectrometry (graduated 2021).