• Merck & Co. (South San Francisco, CA)
    …seeking an exceptional and experienced scientist in the role of Associate Principal Scientist in the South San Francisco Discovery Biologics group. The ... qualified candidate will be a scientist with a breadth and depth of expertise in immunization-based antibody discovery, including but not limited to expertise in… more
    HireLifeScience (12/12/25)
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  • Merck & Co. (South San Francisco, CA)
    Job Description Senior Principal Scientist Translational Medicine, Immunology Translational Medicine in our Research & Development Division is responsible for ... Therapeutic Area Lead in Translational Medicine.Primary responsibilities for the Senior Principal Scientist include the following:Key member of an early… more
    HireLifeScience (12/03/25)
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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 (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 ... research group that provides drug delivery, solid state crystal form characterization, pre-formulation and formulation support and small molecule and biologics developability assessments at the development and drug discovery interface. Our team is responsible… more
    HireLifeScience (12/03/25)
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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 ... in South San Francisco, California. The successful candidate must be able to collaborate in a dynamic, integrated, and multidisciplinary team environment. A broad range of tools (eg high-resolution mass spectrometry, chromatography, spectroscopy) are… more
    HireLifeScience (12/02/25)
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  • Merck & Co. (South San Francisco, CA)
    Job DescriptionThe Senior Director (Sr. Principal Scientist ) has primary responsibility for the strategic planning and directing clinical research activities ... involving investigational compounds in Immunology. With a focus on late-stage development, the Senior Clinical Director will manage the entire cycle of clinical development, including determination of appropriate disease indications to pursue and subsequent… more
    HireLifeScience (12/02/25)
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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 ... in respiratory drug development within a large pharmaceutical setting, with a strong track record of advancing programs from early discovery through clinical development. This role offers the opportunity to shape strategy, collaborate across disciplines, and… more
    HireLifeScience (12/04/25)
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  • Principal Scientist I

    Genentech (Pleasanton, CA)
    …better tomorrow. **The Opportunity** We are seeking a highly motivated and innovative Principal Scientist to join our Molecular Diagnostics R&D team in ... future of molecular diagnostics at Roche. **Your Role and Responsibilities** As a Principal Scientist , you will lead from the bench and be a key technical leader… more
    Genentech (12/11/25)
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  • Principal Scientist , Oncology…

    Gilead Sciences, Inc. (Foster City, CA)
    …together. **Position Overview:** We are seeking a highly motivated and creative Principal Scientist to support Gilead's growing Oncology targeted large molecule ... portfolio. The successful candidate will be an integral senior member of a high performing research team dedicated to (i) identifying and validating novel targets for T cell Engagers, (ii) developing next-generation approaches to make T cell engagers safer and… more
    Gilead Sciences, Inc. (12/11/25)
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  • Principal Scientist , Biologics…

    Gilead Sciences, Inc. (Foster City, CA)
    …Join Gilead and help create possible, together. **Job Description** The Principal Scientist , Biologics Pivotal Formulation and Process Development role ... is part of the collaborative and interdisciplinary CMC development team aiming to use state-of-the art technologies and innovative methodologies to advance medicines into the clinic. The success candidate is expected to bring relevant technical expertise,… more
    Gilead Sciences, Inc. (11/19/25)
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  • Principal Scientist , Quality…

    Gilead Sciences, Inc. (Foster City, CA)
    …their aspirations. Join Gilead and help create possible, together. **Job Description** The Principal Scientist , Quality Control (QC) Lead will be responsible for ... the strategic oversight and operational execution of cGMP analytical testing in support of small molecule clinical development programs. The role provides leadership for assigned programs across a range of QC activities, ensuring that testing, documentation,… more
    Gilead Sciences, Inc. (11/05/25)
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  • Principal Applied Scientist

    Amazon (Sunnyvale, CA)
    …the development of industry-leading technology with multimodal systems. As a Principal Scientist within the Artificial General Intelligence (AGI) organization, ... General Intelligence (AGI) team is looking for a passionate, talented, and inventive Principal Applied Scientist with a strong deep learning background, to lead… more
    Amazon (11/19/25)
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  • Principal Applied Scientist

    Amazon (Palo Alto, CA)
    …responsibilities include but are not limited to: Improving Auction Mechanism: The Principal Scientist will reimagine auction mechanisms to holistically optimize ... Advancing Scientific and Technical Capabilities: As a senior leader, the Principal Scientist will play a critical role in elevating the team's scientific… more
    Amazon (10/25/25)
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  • Principal Applied Scientist , AGI…

    Amazon (Sunnyvale, CA)
    Description As a Principal Scientist within the Artificial General Intelligence (AGI) organization, you are a trusted part of the technical leadership. You bring ... that affect the way we build and integrate algorithms. A Principal Applied Scientist will solicit differing views across the organization and are willing… more
    Amazon (11/19/25)
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  • Principal Applied Scientist

    Amazon (Palo Alto, CA)
    …products that directly help them create, optimize, and grow their campaigns. As a Principal Scientist , you will play a critical role in elevating the team's ... AI, join us in shaping the future of advertising. Key job responsibilities The Principal Applied Scientist in Advertiser Guidance team will lead 50+ builders in… more
    Amazon (10/25/25)
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  • Principal Applied Scientist

    Amazon (Palo Alto, CA)
    Description The Sponsored Products (SP) team is looking for a Principal Scientist to help our millions of shoppers intuitively navigate our vast inventory by ... break fresh ground in product and technical innovations every day! As a Principal Scientist in Sponsored Products, you will have deep subject matter expertise in… more
    Amazon (10/07/25)
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  • Principal Applied Scientist , Amazon…

    Amazon (Palo Alto, CA)
    …what's possible with AI, join us in shaping the future of advertising. The principal scientist in this position will focus on designing, developing and launching ... of what's possible in these fields. Key job responsibilities As a Principal Applied Scientist for the team, you will drive appropriate technology choices for the… more
    Amazon (09/28/25)
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  • Principal Applied Scientist

    Amazon (Sunnyvale, CA)
    Description As a Principal Scientist in the Artificial General Intelligence (AGI) organization, you are a trusted part of the technical leadership. You bring ... at an executive level - Experience mentoring and training the research scientist community on complex technical issues - Experience distilling informal customer… more
    Amazon (11/05/25)
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  • Principal Applied Scientist , AGI…

    Amazon (Sunnyvale, CA)
    Description As a Principal Scientist within the Artificial General Intelligence (AGI) organization, you are a trusted part of the technical leadership. You bring ... to an executive level decision maker. Mentors and trains the research scientist community on complex technical issues. Excellent written and spoken communication… more
    Amazon (10/30/25)
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  • Principal Applied Scientist , AGI…

    Amazon (Sunnyvale, CA)
    Description As a Principal Scientist within the Artificial General Intelligence (AGI) organization, you are a trusted part of the technical leadership. You bring ... to an executive level decision maker. Mentors and trains the research scientist community on complex technical issues. Experience developing software in traditional… more
    Amazon (10/04/25)
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