Principal Scientist For a CRO (Frontage Laboratories, Inc. - Exton, PA): design/develop method transfer, method development, validations, quantitation and structure elucidation; perform and supervise high-volume bio-analytical sample analysis; perform and supervise data analysis, data quality control (QC) and data interpretation for bio-analytical, PK, PD and ADME studies in regulated environment; utilize and maintain analytical instruments including Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS), ultra-high performance liquid chromatography (UHPLC) with ultraviolet (UV) detector, Inductively Coupled Plasma Mass Spectrometry (ICP-MS) and Nuclear Magnetic Resonance (NMR). Requirements: 1. Master of Science or foreign equivalent degree in Organic Chemistry, Chemistry or a related field. 2. 1 year of experience in the job offered or 1 year of experience as a Senior Scientist or Project Leader. The required experience must include experience in LC-MS/MS and HPLC. In lieu of a Master of Science or foreign equivalent degree and 1 year of experience, we accept a Bachelor of Science or foreign equivalent degree in Organic Chemistry, Chemistry or a related field and 5 years of progressive experience in the job offered or 5 years of progressive experience as a Senior Scientist or Project Leader. The required experience must include experience in LC-MS/MS and HPLC. Work Location: Exton, PA. Hours: 40 per week - Monday through Friday. Apply Online.