10,000+ Principal Scientist jobs in Philadelphia, PASet Job AlertWant more jobs like this?We’ll send you jobs that match this search criteria. Get jobs in Philadelphia, PA delivered to your inbox every week.Enter emailSend me The Muse newsletters for the best in career advice and job search tips.Get Jobs!By signing up, you agree to our Terms of Service & Privacy Policy.Principal Scientist, BioinformaticsAt Johnson & Johnson -Spring House, PAPosted on Nov 9View JobPrincipal Scientist, EngineeringAt Merck -Spring House, PAPosted on Nov 5View JobSenior Principal Scientist, Peptide ChemistryAt Johnson & Johnson -Spring House, PAPosted on Sep 23View JobPrincipal Scientist, EngineeringAt Merck -Spring House, PAPosted on Oct 23View JobPrincipal Scientist, Generative Deep LearningAt Johnson & Johnson -Spring House, PA / Remote + 2 locationsPosted on Nov 21View JobPrincipal Scientist, Translational MedicineAt Merck -Spring House, PAPosted on Nov 6View JobPrincipal Scientist, CAR-T Process DevelopmentAt Johnson & Johnson -Spring House, PAPosted on Nov 7View JobAssociate Principal Scientist, EngineeringAt Merck -Spring House, PAPosted on Nov 5View JobPrincipal Scientist, Assay DevelopmentAt Merck -Spring House, PAPosted on Nov 13View JobAssociate Principal Scientist, EngineeringAt Merck -Spring House, PAPosted on Oct 23View JobAssociate Principal Scientist, ChemistryAt Merck -Spring House, PAPosted on Nov 12View JobPrincipal Scientist Computational ChemistAt Merck -Spring House, PAPosted on Nov 19View JobPrincipal Scientist, Epidemiology (Hybrid)At Merck -Philadelphia, PAPosted on Nov 9View JobPrincipal Scientist, Epidemiology (Hybrid)At Merck -Spring House, PAPosted on Nov 9View JobAssociate Principal Scientist, BiostatisticsAt Merck -Spring House, PAPosted on Nov 6View JobSenior Principal Scientist, Biostatistics (Hybrid)At Merck -Spring House, PAPosted on Nov 8View JobPrincipal Scientist / Director, GLOBAL REGULATORY CMC BiologicsAt Merck -Spring House, PAPosted on Nov 14View JobSenior Principal Scientist, Breast CancerAt Merck -Spring House, PAPosted on Nov 19View JobSenior Principal Scientist, Thoracic MalignanciesAt Merck -Spring House, PAPosted on Nov 6View JobAssociate Principal Scientist, Nonclinical Drug SafetyAt Merck -Spring House, PAPosted on Oct 11View Job