• Merck & Co. (Rahway, NJ)
    Job Description Principal Scientist , Early Development Chemistry , Small Molecule Process R&D Nature and Scope of Position:Reports to the Early Development ... support of our Company's small molecule pipeline.Collaborates effectively with Process Chemistry , Discovery Process Chemistry , Enabling Technologies,… more
    HireLifeScience (12/04/25)
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  • Merck & Co. (Rahway, NJ)
    Job DescriptionThe Principal Scientist , Drug Discovery in our Research and Development Department will be responsible for identifying new molecular entities ... resources for the necessary research work (Medicinal and Process Chemistry , in vitro Pharmacology, Pharmacokinetics, Disease Models, Formulation Development, Safety… more
    HireLifeScience (12/04/25)
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  • Merck & Co. (South San Francisco, CA)
    …Enabling Capabilities (Analytical R&D) is seeking applicants for an Associate Principal Scientist position available at our research laboratories located ... Job DescriptionJoin our Discovery Analytical Research group to drive innovation in...8 years) or Ph.D. (with 4 years) in Analytical Chemistry or related field and relevant experience Required Experience… more
    HireLifeScience (12/02/25)
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  • Merck & Co. (South San Francisco, CA)
    …drug conjugates, and novel modality discovery and development pipeline. The Associate Principal Scientist will be primarily discovery team-facing and is ... SSF Pharmacokinetics, Dynamics, Metabolism and Bioanalytics (PDMB) group is seeking an Associate Principal Scientist to contribute to our Company's biologics,… more
    HireLifeScience (12/04/25)
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  • Merck & Co. (South San Francisco, CA)
    …Sciences (DPS) group based in South San Francisco, CA is seeking an Principal Scientist with small molecule and peptide experience.DPS is a multi-disciplinary ... molecule and biologics developability assessments at the development and drug discovery interface. Our team is responsible for the characterization of pre-clinical… more
    HireLifeScience (12/03/25)
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  • Merck & Co. (Rahway, NJ)
    Job DescriptionThe Microbial Process Operations (MPO) Team is seeking a Senior Principal Scientist with expertise in microbial process development for the ... teams to address challenges throughout the entire lifecycle of enzyme manufacturing from discovery to commercial supply. As a senior member of the team, the… more
    HireLifeScience (12/06/25)
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  • Merck & Co. (South San Francisco, CA)
    Job DescriptionWe are seeking an experienced scientist to join our team and drive innovation in respiratory medicine. The ideal candidate will bring deep expertise ... setting, with a strong track record of advancing programs from early discovery through clinical development. This role offers the opportunity to shape strategy,… more
    HireLifeScience (12/04/25)
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  • Principal Scientist I / II,…

    Schrodinger (Cambridge, MA)
    We're looking to hire a ** Principal Scientist in Medicinal Chemistry ** to join us in our mission to discover and develop drugs that improve human health ... qualifications. **Who will love this job:** + A passionate scientist with a robust background in structure-based drug design...chemistry + At least four years of drug discovery experience in a pharmaceutical and/or biotech setting +… more
    Schrodinger (10/11/25)
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  • Senior Principal Scientist

    Schrodinger (NY)
    We're looking to hire a **Senior Principal Scientist ** or **Director of Medicinal Chemistry ** to join us in our mission to discover and develop drugs that ... qualifications. **Who will love this job:** + A passionate scientist with a robust background in structure-based drug design...chemistry + At least eight years of drug discovery experience in a pharmaceutical and/or biotech setting +… more
    Schrodinger (10/11/25)
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  • Principal Scientist , Computational…

    Frontier Medicines (Boston, MA)
    …Medicines is seeking a highly motivated individual to fill the position of Principal Scientist , Computational Chemistry . The successful candidate will play ... a leading role in developing medicinal chemistry optimization strategies for key drug discovery ...medicinal chemistry optimization strategies for key drug discovery programs. This individual will review experimental results, develop… more
    Frontier Medicines (11/04/25)
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  • Principal Scientist , Early…

    Merck (Boston, MA)
    **Job Description** ** Principal Scientist , Early Development Chemistry , Small Molecule Process R&D** Nature and Scope of Position: Reports to the Early ... of our Company's small molecule pipeline. Collaborates effectively with Process Chemistry , Discovery Process Chemistry , Enabling Technologies, Chemical… more
    Merck (12/04/25)
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  • Principal Scientist , Drug…

    Merck (Rahway, NJ)
    **Job Description** The Principal Scientist , Drug Discovery in our Research and Development Department will be responsible for identifying new molecular ... resources for the necessary research work (Medicinal and Process Chemistry , in vitro Pharmacology, Pharmacokinetics, Disease Models, Formulation Development, Safety… more
    Merck (12/04/25)
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  • Senior / Principal Scientist

    Boehringer Ingelheim (Ridgefield, CT)
    …innovation in small molecule development. The Principal Scientist /Sr. Scientist will lead efforts in solid-state chemistry and API engineering, focusing ... **Description** Boehringer Ingelheim is currently seeking a Senior or Principal Scientist to support our Material and Analytical Sciences team to join our… more
    Boehringer Ingelheim (11/20/25)
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  • Principal Scientist , Protein…

    J&J Family of Companies (Cambridge, MA)
    …silico discovery colleagues, driving future advancements and technologies. This Principal Scientist is responsible for developing and implementing novel ... https://www.jnj.com/innovative-medicine **We are searching for the best talent for** ** Principal Scientist , Protein Optimization in Cambridge, MA** **Purpose:**… more
    J&J Family of Companies (12/10/25)
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  • Senior Principal Scientist , Pre

    Pfizer (San Diego County, CA)
    **ROLE SUMMARY** This Senior Principal Scientist position will be a strong scientific and leadership role within the Early Formulation Science and Drug Delivery ... and drug delivery systems design + Integrates pharmaceutics, physical organic chemistry , biophysical chemistry , supramolecular chemistry , materials science,… more
    Pfizer (11/19/25)
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  • Associate Principal Scientist

    Merck (South San Francisco, CA)
    …Enabling Capabilities (Analytical R&D) is seeking applicants for an Associate Principal Scientist position available at our research laboratories located ... **Job Description** Join our Discovery Analytical Research group to drive innovation in...8 years) or Ph.D. (with 4 years) in Analytical Chemistry or related field and relevant experience **Required Experience… more
    Merck (12/02/25)
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  • Director, Principal Machine Learning…

    Bayer (Cambridge, MA)
    …diverse minds to make a real difference, there's only one choice.** **Director, Principal Machine Learning Scientist ** Meeting some of the most pressing ... partners. **YOUR TASKS AND RESPONSIBILITIES** The primary responsibilities of the Director, Principal Machine Learning Scientist are to: + Identify opportunities… more
    Bayer (12/10/25)
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  • Principal Scientist , Material…

    West Pharmaceutical Services (DE)
    Principal Scientist , Material Development Requisition ID: 69905 Date: Nov 15, 2025 Location: Eschweiler, NW, DE Department: R&D Description: At West, we're a ... of this role involves leading a global team dedicated to the discovery , evaluation, validation, and industrialization of innovative polymer films for pharmaceutical… more
    West Pharmaceutical Services (12/13/25)
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  • Senior Principal Scientist

    J&J Family of Companies (Spring House, PA)
    …Johnson & Johnson Innovative Medicine R&D is recruiting for a Senior Principal Scientist , Nonclinical Safety Lead within Preclinical Sciences and Translational ... a hybrid role and will be located in Spring House, PA. As a Senior Principal Scientist , Nonclinical Safety (NCS) Lead, you will collaborate with innovative and… more
    J&J Family of Companies (12/02/25)
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  • Associate Principal Scientist

    Merck (South San Francisco, CA)
    …drug conjugates, and novel modality discovery and development pipeline. The Associate Principal Scientist will be primarily discovery team-facing and is ... SSF Pharmacokinetics, Dynamics, Metabolism and Bioanalytics (PDMB) group is seeking an Associate Principal Scientist to contribute to our Company's biologics,… more
    Merck (12/04/25)
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