• Analytical Chemist Mid Level

    Adecco US, Inc. (Chesterfield, MO)
    ** Analytical Chemist - Mid Level** ** Analytical Science Hub | Small Molecules Division** Adecco Healthcare & Life Sciences is partnered with a leading ... agricultural science organization to hire a **Mid-Level Analytical Chemist ** to support its **Small Molecules Analytical Science Hub** . This role focuses on… more
    Adecco US, Inc. (12/24/25)
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  • Analytical Chemist

    Belcan (Chesterfield, MO)
    Analytical Chemist Job Number: 361908 Category: Chemist Description: Job Title: Analytical Chemist - Mid Level Location: Chesterfield, MO Zip Code: ... and quantitative analyses. * Optimize and develop new sample preparation and analytical methods * Write reports and interpret/report analytical results to… more
    Belcan (12/23/25)
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  • Analytical Chemist

    Actalent (Chesterfield, MO)
    Job Title: Analytical Chemist - Mid Level Job Description We are seeking a passionate and skilled Analytical Chemist to join our Analytical Science ... quantitative analyses. + Respond promptly to collaborator/partner inquiries and analytical /data troubleshooting/reporting requests. + Write reports and interpret … more
    Actalent (12/19/25)
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  • Scientist I Analytical Chemist

    Eurofins US Network (St. Charles, MO)
    …in Europe over the past 20 years. **Job Description** The Scientist I - Analytical Chemist will support the Eurofins Discovery business in contract research ... in a contract research organization (CRO) or industry laboratory. **Scientist I Analytical Chemist Responsibilities & Duties Include but are not Limited… more
    Eurofins US Network (12/30/25)
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  • Analytical Chemist (Organic)

    Nestle (St. Louis, MO)
    …towards being one of the most trusted companies in pet care. As an Analytical Chemist , you will execute and interpret complex procedures and protocols within ... Purely Driven. **Position Summary** Quality Assurance and Nestle Purina Analytical Laboratories department is comprised of talented individuals who possess… more
    Nestle (11/12/25)
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  • Analytical Development Chemist (R&D)

    Actalent (St. Louis, MO)
    Job Title: Application Chemist Job Description We are seeking a temporary full-time project lead to execute, coordinate, and document a defined portfolio of ... consistency across CAD platforms. Essential Skills + Strong understanding of analytical instrumentation including Raman, FTIR, NIR, UV-Vis spectroscopy, and process… more
    Actalent (12/20/25)
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  • Environmental Field Chemist CDL Driver

    Clean Harbors (Caseyville, IL)
    Clean Harbors in **Caseville, IL** is seeking an **Environmental Field Chemist CDL Driver** (CleanPack Chemist ) to handle, segregate, pack, and inspect chemical ... CDL with hazmat endorsement required** + **The Environmental Field Chemist are (NOT) laboratory-based Chemist ** + **Must...profile of new waste streams or any waste needing analytical testing + Ensures drum count is correct and… more
    Clean Harbors (11/21/25)
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  • Chemist

    Actalent (St. Louis, MO)
    Job Title: QC Chemist Job Description We are seeking a dedicated QC Chemist to join our contract testing team specializing in the analysis of gases and oils. As ... a QC Chemist , you will play a crucial role in assisting...Experience with ion chromatography, atomic absorption (AA), and other analytical techniques is advantageous. Work Environment The work environment… more
    Actalent (12/25/25)
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  • Chemist I

    Veolia North America (Sauget, IL)
    …to identify and recognize discrepancies on incoming waste and assist the Discrepancy Chemist with the resolution as well as reviewing and suggesting comments to ... by supervisor per guidance and training. + Maintenance and troubleshooting of analytical equipment, as well as working with outside technical support, coordinating… more
    Veolia North America (12/30/25)
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  • Environmental Chemist /Data Validator

    Leidos (Earth City, MO)
    **Description** Leidos is in search of an **Environmental Chemist /Data Validator** . This role will primarily provide support to the United States Army Corps of ... validation of laboratory data packages of radiological data received from analytical laboratories + Evaluate lab reports for completeness, assess quality control… more
    Leidos (12/03/25)
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  • Associate Chemist

    American Water (Belleville, IL)
    …It includes cross-training to build proficiency across lab functions, validating analytical data, and contributing to audit preparation and follow-up. The role ... * Identify routine problems and conduct basic troubleshooting and maintenance of analytical equipment and processes to ensure continued sample analysis and optimum… more
    American Water (12/28/25)
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  • Senior Bioanalytical Chemist

    Eurofins US Network (St. Charles, MO)
    …Scientific is an international life sciences company, providing a unique range of analytical testing services to clients across multiple industries, to make life and ... 54 countries. Eurofins companies offer a portfolio of over 200,000 analytical methods to evaluate the safety, identity, composition, authenticity, origin,… more
    Eurofins US Network (12/30/25)
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  • Senior Chemist /Metrologist

    Kelly Services (St. Louis, MO)
    …troubleshooting, and diagnostic repair on a variety of complex ** analytical instrumentations** used in pharmaceutical laboratories, specifically including **HPLC, ... GC, and Spectrophotometers** . + **Component Management:** Analyze test results, specify, and request the purchase of necessary components for repairs or upgrades. + **Modification:** Adjust and modify instrument performance and circuitry to meet specific… more
    Kelly Services (11/01/25)
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  • Lab Tech III

    Veolia North America (Sauget, IL)
    …regulatory guidelines. May perform specialized analysis under the direction of a chemist in support and relation with applied quality assurance and control ... + Sample a variety of incoming waste materials and determines proper analytical methods required for compliance in accordance with established guidelines and… more
    Veolia North America (12/13/25)
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