[Skip to main content](#main-content) [OpenNash Jobs](https://jobs.opennash.com/) [Hiring report](/reports/hiring/) · [All Merck KGaA, Darmstadt, Germany and its affiliates jobs](https://jobs.opennash.com/companies/merck-kgaa-germany/) · [Search jobs](/search/) Merck KGaA, Darmstadt, Germany and its affiliates · St Louis, MO # GMP Associate Production Scientist - Rotating Shift St. Louis, Missouri, United States Full-time $25.00 - $45.00 Research & Science Listed on Merck KGaA, Darmstadt, Germany and its affiliates’s official careers site. Posted September 20, 2026. Check that it is still open and apply there. [Apply on Merck KGaA, Darmstadt, Germany and its affiliates’s careers site →](https://careers.merckgroup.com/global/en/job/MQAMKDGLOBAL302173EXTERNALENGLOBAL/GMP-Associate-Production-Scientist-Rotating-Shift) [OpenNash Jobs](https://jobs.opennash.com/) / [Merck KGaA, Darmstadt, Germany and its affiliates](https://jobs.opennash.com/companies/merck-kgaa-germany/) / GMP Associate Production Scientist - Rotating Shift ## Job description Work Your Magic with us! Start your next chapter and join MilliporeSigma. Ready to explore, break barriers, and discover more? We know you’ve got big plans – so do we! Our colleagues across the globe love innovating with science and technology to enrich people’s lives with our solutions in Healthcare, Life Science, and Electronics. Together, we dream big and are passionate about caring for our rich mix of people, customers, patients, and planet. That's why we are always looking for curious minds that see themselves imagining the unimaginable with us. This role does not offer sponsorship for work authorization. External applicants must be eligible to work in the US. ### Your Role Join our St. Louis Cherokee facility at MilliporeSigma, a leading contract development and manufacturing organization (CDMO) and a recognized Center of Excellence for antibody-drug conjugate (ADC) manufacturing. We are seeking passionate and enthusiastic professionals to contribute to our innovative bioconjugate production, leveraging over 35 years of expertise in the field. As a vital part of our dedicated team, you will play a key role in delivering high-quality ADCs that improve the quality of life for patients suffering from cancer and other debilitating diseases. With our state-of-the-art technologies and commitment to excellence, you will ensure the highest standards of quality and compliance in our ADC manufacturing processes. As an Associate Production Scientist – Rotating Shift you will manufacture products according to established protocols under ICH Q7 pharmaceutical regulations, provide technical support to others and perform operations in support of the group and department. ### Job Duties Include: 12 hour rotating Day (6:00am - 6:30pm)/ Night (6:00pm - 6:30am) shifts with a 20% shift differential Evaluate products by established protocols, providing technical support and performing operations to meet departmental goals. Safely conduct routine processes and unit operations, including cleaning equipment and work areas, while ensuring quality expectations. Maintain required training and qualifications, train team members, and act as a technical consultant. Support facility functions by maintaining equipment, preparing reagents, restocking supplies, and managing waste disposal. Maintain accurate records and logbooks according to quality guidelines, communicating operational status and concerns to supervision. Collaborate with other departments, participate in quality audits and customer interactions, and perform procedures independently or in a team. Improve processes using scientific knowledge and principles, ensuring compliance with change control. Address unsafe conditions promptly and troubleshooting challenges related to biological processes and GMP compliance. ### Physical Attributes Ability to lift to 50lbs. Ability to wear personal protective equipment, such as respirator or chemical protective clothing, for extended periods. ### Expected on-floor time (70%) ### Who You Are Minimum Qualifications: Bachelor’s Degree in scientific discipline (e.g., Chemistry, Biochemistry, Biology, etc.) OR Associate Degree in Chemistry, Biochemistry Biology or any other Life Science discipline 2+ years of industry Production/Laboratory experience RSREMD Preferred Qualifications: Experience with Antibody Drug Conjugates (ADCs), including knowledge of their formulation and manufacturing processes. Experience with Automated Tangential Flow and Automated Chromatography systems. Familiar with laboratory instruments and production equipment Familiarity with process techniques, unit operations, and safe chemical handling methods. Experience with Microsoft Office (Word, Outlook, Excel, etc.). Mechanical and troubleshooting skills. Knowledge of cGMP and ICH Regulatory and Quality standards. Knowledge of Operational Excellence. Clean room experience Ability to interact professionally in customer-facing meetings, including challenging discussions on process planning and process execution RSREMD Pay Range for this position: $25.00 - $45.00 The offer range represents the anticipated low and high end of the base pay compensation for this position. The actual compensation offered will be determined by factors such as location, level of experience, education, skills, and other job-related factors. Position may be eligible for sales or performance-based bonuses. Benefits offered by the Company include health insurance, paid time off (PTO), retirement contributions, and other perquisites. For more information click here. ### What we offer We are curious minds that come from a broad range of backgrounds, perspectives, and life experiences. We believe that this variety drives excellence and innovation, strengthening our ability to lead in science and technology. We are committed to creating access and opportunities for all to develop and grow at your own pace. Join us in building a culture of inclusion and belonging that impacts millions and empowers everyone to work their magic and champion human progress! Apply now and become a part of a team that is dedicated to Sparking Discovery and Elevating Humanity! ## At a glance - Posted by the employer: Sep 20, 2026 - First seen by OpenNash: Oct 19, 2026 - Last checked: Oct 19, 2026 - Listed for: 29 days - Location: St. Louis, Missouri, United States - Employment type: Full-time - Pay: $25.00 - $45.00[Apply on Merck KGaA, Darmstadt, Germany and its affiliates’s careers site →](https://careers.merckgroup.com/global/en/job/MQAMKDGLOBAL302173EXTERNALENGLOBAL/GMP-Associate-Production-Scientist-Rotating-Shift) ## More jobs at Merck KGaA, Darmstadt, Germany and its affiliates ### [Associate Production Scientist-Trainer](https://jobs.opennash.com/companies/merck-kgaa-germany/jobs/9291591e223ccc64e2d3/) St. Louis, Missouri, United States ### [Associate Quality Scientist - 2nd shift](https://jobs.opennash.com/companies/merck-kgaa-germany/jobs/3e12bc578f9d35fe9109/) St. Louis, Missouri, United States ### [GMP Associate Production Scientist - Night Shift](https://jobs.opennash.com/companies/merck-kgaa-germany/jobs/a40f73c73e002f044ffb/) St. Louis, Missouri, United States ### [Microbiology Supervisor (QC Lab)](https://jobs.opennash.com/companies/merck-kgaa-germany/jobs/7b8efce1ab04aa6da4c0/) St. Louis, Missouri, United States ### [Quality Scientist - Investigator](https://jobs.opennash.com/companies/merck-kgaa-germany/jobs/663d0be976ee2f454ee5/) St. Louis, Missouri, United States ## Similar jobs at other companies ### [Staff Scientist, Biopharmaceuticals (GMP)](https://jobs.opennash.com/companies/thermo-fisher-scientific/jobs/cd7ac82c75d12e23ca89/) Thermo Fisher Scientific · Middleton, Wisconsin, United States of America ### [Senior Scientist - GMP (HPLC, ELISA)](https://jobs.opennash.com/companies/thermo-fisher-scientific/jobs/9ce1d36c187d95584fe9/) Thermo Fisher Scientific · Middleton, Wisconsin, United States of America ### [Production Cook (Temporary/Rotating Shift) at Evanston Hospital- Endeavor Health](https://jobs.opennash.com/companies/aramark/jobs/4e4d46a7a2edda16d0e0/) Aramark · Evanston, IL, US ### [Utility Worker (Production, Rotating Schedule)- Evanston Hospital at Endeavor Health](https://jobs.opennash.com/companies/aramark/jobs/08d023f3ca3f0a0f1ced/) Aramark · Evanston, IL, US ### [Production Operator 12 Hr Shift 7pm-7am Rotating Sun-Tues, Sat-Tues](https://jobs.opennash.com/companies/sandvik/jobs/576243cc51881686e595/) Sandvik · USA, NY, Depew OpenNash lists jobs from employers’ own careers sites and does not handle applications. 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