• Merck & Co. (South San Francisco, CA)
    …group based in South San Francisco, CA is seeking an Principal Scientist with small molecule and peptide experience.DPS is a multi-disciplinary research ... developability assessment and delivery approaches for potential small molecule and peptide drug candidates. Goals include a) compound profiling, b) early formulation… more
    HireLifeScience (11/08/25)
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  • Merck & Co. (South San Francisco, CA)
    …Pharmacokinetics, Dynamics, Metabolism and Bioanalytics (PDMB) group is seeking an Associate Principal Scientist to contribute to our Company's biologics, drug ... conjugates, and novel modality discovery and development pipeline. The Associate Principal Scientist will be primarily discovery team-facing and is expected to… more
    HireLifeScience (11/07/25)
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  • Merck & Co. (Rahway, NJ)
    …department of our Company Research Laboratories Division is seeking applicants for a Principal Scientist position available at its Rahway, New Jersey research ... conjugates, fusion proteins, immunomodulatory molecules, immune-cell engagers, and complex peptide /protein modalities). We collaborate closely with colleagues in Discovery,… more
    HireLifeScience (10/18/25)
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  • Principal Research Scientist I,…

    AbbVie (North Chicago, IL)
    …Job Description AbbVie Product Development Science & Technology (PDS&T) is seeking a Principal Research Scientist , Peptide Chemistry to conduct late-stage ... candidate with a proven track record of accomplishment in the field of peptide manufacturing development, to work in a multi-functional team environment at our North… more
    AbbVie (11/07/25)
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  • Senior Principal Scientist

    Genentech (South San Francisco, CA)
    …We are seeking a highly motivated and experienced Medicinal Chemist (Senior Principal Scientist ) to join our innovative research and development team. ... This is a technical leadership position within our Peptide Therapeutics department, focused on advancing Peptide ...our Peptide Therapeutics department, focused on advancing Peptide Therapeutics. The ideal candidate will be a significant… more
    Genentech (11/06/25)
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  • Principal Research Scientist I,…

    AbbVie (North Chicago, IL)
    …development strategies that achieve project and area goals. Serve as a lead scientist on his/her own project and contribute scientific insights into multiple other ... projects. Oversee the design, implementation, and optimization of peptide synthesis processes from development to commercialization. Major Responsibilities: +… more
    AbbVie (10/22/25)
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  • Principal Scientist , Preclinical…

    Merck (South San Francisco, CA)
    …group based in South San Francisco, CA is seeking an Principal Scientist with small molecule and peptide experience. DPS is a multi-disciplinary research ... developability assessment and delivery approaches for potential small molecule and peptide drug candidates. Goals include a) compound profiling, b) early formulation… more
    Merck (11/08/25)
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  • Principal Scientist - TS/MS API…

    Lilly (Indianapolis, IN)
    …essential to our patients around the world. The API EM Senior or Principal Scientist will join the Technical Services/Manufacturing Sciences (TS/MS) team who ... technical support and scientific expertise across Peptides and Oligonucleotides (TIDES). The Senior/ Principal Scientist acts as an SME responsible for providing… more
    Lilly (10/07/25)
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  • Principal Scientist , Product…

    Catalent Pharma Solutions (San Diego, CA)
    ** Principal Scientist , Product Development** **Position Summary:** Catalent, Inc. is a leading global contract development and manufacturing organization (CDMO) ... from the best. Catalent Pharma Solutions is hiring a Principal Scientist for Product Development at our...focused on oral formulation development for small molecule or peptide drug products and amorphous intermediates. This individual may… more
    Catalent Pharma Solutions (11/13/25)
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  • Associate Principal Scientist

    Merck (South San Francisco, CA)
    …Pharmacokinetics, Dynamics, Metabolism and Bioanalytics (PDMB) group is seeking an Associate Principal Scientist to contribute to our Company's biologics, drug ... conjugates, and novel modality discovery and development pipeline. The Associate Principal Scientist will be primarily discovery team-facing and is expected to… more
    Merck (11/07/25)
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  • Principal Scientist Medicinal…

    Kelly Services (Ballwin, MO)
    ** Principal /Senior Principal Scientist - Medicinal Chemistry** A St. Louis, MO-based pharmaceutical research and development company is seeking a highly ... progress programs from hit identification to IND filing. + Experience in cyclic peptide design, PROTACs, and molecular glues is strongly preferred. + Skilled in… more
    Kelly Services (10/24/25)
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  • Principal Scientist , Non Viral…

    Bristol Myers Squibb (Seattle, WA)
    …here at BMS with our Cell Therapy team. **Position Summary:** As a Principal Scientist with Cell Therapy Analytical Development, this energetic, collaborative, ... size exclusion chromatography, icIEF, FRET, protein and nucleic acid quantitation, peptide mapping) + Hands-on experience working with a non-viral gene delivery… more
    Bristol Myers Squibb (11/08/25)
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  • Principal Scientist , Biological…

    Merck (Rahway, NJ)
    …department of our Company Research Laboratories Division is seeking applicants for a Principal Scientist position available at its Rahway, New Jersey research ... conjugates, fusion proteins, immunomodulatory molecules, immune-cell engagers, and complex peptide /protein modalities). We collaborate closely with colleagues in Discovery,… more
    Merck (10/18/25)
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  • Analytical Development, Principal

    Cambrex High Point (Charles City, IA)
    …world. Start a career where You Matter by applying today! Job Overview The Principal Scientist I will provide technical support for multiple project teams. This ... technologies and capabilities, including continuous flow, controlled substances, liquid-phase peptide synthesis, solid-state science, material characterization, and highly potent… more
    Cambrex High Point (10/15/25)
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  • Analytical Development Principal

    Cambrex High Point (Minneapolis, MN)
    …world. Start a career where You Matter by applying today! Job Overview The Principal Scientist II will provide technical support for multiple project teams. This ... technologies and capabilities, including continuous flow, controlled substances, liquid-phase peptide synthesis, solid-state science, material characterization, and highly potent… more
    Cambrex High Point (09/23/25)
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  • Principal Scientist 2 - ARD

    Cambrex High Point (High Point, NC)
    …the world. Start a career where You Matter by applying today! Job Overview Principal Scientist 2 - ARD will independently: conduct development and optimization ... technologies and capabilities, including continuous flow, controlled substances, liquid-phase peptide synthesis, solid-state science, material characterization, and highly potent… more
    Cambrex High Point (09/04/25)
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  • Senior Principal Scientist

    Lilly (Indianapolis, IN)
    …next generation of life-changing medicines to patients. **Position Summary:** The Senior Principal Scientist , Analytical Chemistry, will join a diverse team of ... and engineers to deliver product and process insights for synthetic peptide and oligonucleotide programs. Engaging with scientists across Lilly's R&D, quality,… more
    Lilly (08/30/25)
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  • Talent Pipeline- Principal Scientist

    Cambrex High Point (Durham, NC)
    …and capabilities, including continuous flow, controlled substances, liquid-phase peptide synthesis, solid-state science, material characterization, and highly potent ... APIs. Your Work Matters. At Cambrex, we strive to build a culture where all colleagues have the opportunity to: + engage in work that matters to our customers and the patients they serve + learn new skills and enjoy new experiences in an engaging and safe… more
    Cambrex High Point (11/12/25)
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  • Chemical Development Principal

    Cambrex High Point (Charles City, IA)
    …and capabilities, including continuous flow, controlled substances, liquid-phase peptide synthesis, solid-state science, material characterization, and highly potent ... APIs. Your Work Matters. At Cambrex, we strive to build a culture where all colleagues have the opportunity to: + engage in work that matters to our customers and the patients they serve + learn new skills and enjoy new experiences in an engaging and safe… more
    Cambrex High Point (10/15/25)
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  • Purification Applications Leader

    Sanofi Group (Framingham, MA)
    …and process modeling to successfully launch 3 to 5 new products by year. The Principal Scientist in Downstream Process (DSP) will be part of the subject matter ... Process knowledge across multiple modalities (eg mAbs, small protein and peptide , bioconjugates, nucleotides, Gene/cell therapy, organic chemistry etc.) + Extensive… more
    Sanofi Group (09/22/25)
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