• 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 ... support of our Company's small molecule pipeline. Collaborates effectively with Process Chemistry , Discovery Process Chemistry , Enabling Technologies,… more
    Merck (12/04/25)
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  • Principal II Scientist , Applied…

    Roche (Santa Clara, CA)
    …Group, a part of Roche Sequencing Solutions, is seeking a Principal II Scientist to lead our applied chemistry efforts. This is a hands-on role for ... between fundamental chemistry and applied systems engineering. **The Opportunity** ** Chemistry Innovation & Process Development** + You will invent, screen,… more
    Roche (10/06/25)
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  • Analytical Chemistry Principal

    Kelly Services (Charles City, IA)
    **Kelly(R) Science & Clinical** is seeking a ** Principal Scientist ** for a **direct-hire (permanent)** position with one of our pharmaceutical partners. This ... processes to commercial manufacturing-all within a collaborative, cGMP-compliant environment. ** Principal Scientist I - Direct Hire (Permanent)** **Schedule:**… more
    Kelly Services (11/24/25)
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  • Sr. Research Scientist , Principal

    Cambrex High Point (Longmont, CO)
    …expert knowledge in advanced synthetic chemistry principles and practices. Has principal knowledge in process chemistry and drug substance manufacturing ... Scientist , and Research Investigator) with highly motivated individuals for the Process Chemistry department. Individuals in these position perform routine… more
    Cambrex High Point (12/13/25)
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  • Senior Environmental Scientist

    Metropolitan Council (St. Paul, MN)
    …in a scientific field related to the position. Principal Environmental Scientist Bachelor's degree in biology, Chemistry , Environmental Sciences, or related ... Senior Environmental Scientist OR Principal Environmental Scientist...are required for this job (minimum qualifications) Senior Environmental Scientist Bachelor's degree in biology, Chemistry , Environmental… more
    Metropolitan Council (12/11/25)
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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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  • Sr. Principal Process

    Lilly (Lebanon, IN)
    …Eli Lilly and Company is seeking a highly motivated and skilled TSMS Lab Sr. Principal Process Scientist to join our dynamic team. This role focuses ... peptide synthesis (LPPS). + Design and perform experiments for process optimization, including reaction conditions, reagent selection, purification strategies (eg,… more
    Lilly (11/21/25)
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  • Principal Scientist (Water…

    Kelly Services (Atlanta, GA)
    …A leading organization in the sustainable chemistry space is seeking a ** Principal Scientist ** to join its **Product & Technology Development team** within ... We are proud to offer a** **direct hire** **opportunity to work as a** ** Principal Scientist ** **located in** **Atlanta, GA.** **Job Title: Principal more
    Kelly Services (09/30/25)
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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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  • Principal Scientist - ADC,…

    Lotte Biologics USA LLC (Syracuse, NY)
    …reliably deliver benefits for patients worldwide. Position Summary The Purification Development Principal Scientist , Process Development will report into the ... Development organization. The primary role of the Principal Scientist is to lead the design...a diverse group of scientists/engineers across multiple therapeutic areas, chemistry , and process development to ensure timely… more
    Lotte Biologics USA LLC (12/07/25)
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