The Associate Principal Scientist will serve as the scientific and operational supervisor for a team of specialists and scientists in Rahway supporting various GMP analytical activities including cleaning verification, method validation, solvent release, and in-process testing for drug substance and drug product across the entirety of our non-sterile clinical portfolio during 2nd shift operations at the Rahway site. Required Skills: Analytical Method Development, Analytical Testing, Assay Development, Biological Assay Development, Cell-Based Assays, Chromatographic Techniques, Cleaning Validations, Drug Development, High Resolution Mass Spectrometry (HRMS), Liquid Chromatography-Mass Spectrometry (LC-MS), Pharmaceutical Process Development, Process Analytical Technology (PAT), Protein Analysis, Regulatory Compliance Audits.