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Salary
$65k – $108k per year
Location
In office (Saint Louis)
Seniority
Staff · 10+ years exp
Visa
No sponsorship (stated in the posting)
Employment
Full-Time

Confirmed on the employer's own hiring board on Nov 12, 2026. First seen by Alion on Nov 12, 2026. EMD Group scores A on the Alion truth index.

Overview
Company
Impact
Profile match
EMD Group is the name used in the United States and Canada by Merck KGaA, the science and technology group headquartered in Darmstadt, Germany, whose businesses cover healthcare, life science and electronics. Founded in 1668 and still majority-owned by the Merck family, the group operates in North America through EMD Serono, MilliporeSigma and EMD Electronics, with major sites in Burlington and Billerica in Massachusetts and Saint Louis in Missouri. Its board lists manufacturing technicians, process and quality engineers, data engineers and scientists, finance analysts and shared-service roles in Bengaluru, Manila and Tokyo.

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

At MilliporeSigma (CDMO) Cherokee, the Quality Scientist will perform quality control activities in support of GMP products within the stability and release ADC (antibody drug conjugates) team. This is an on-site role with work hours of 8:00 PM to 6:30 AM,Friday through Monday. The position will report to QC management.

  • Perform analytical testing and other activities to support cGMP release, in process and stability testing of drug substances and drug products
  • Provide complete and accurate records consistent with quality guidelines and good documentation practice (GDP) requirements
  • Perform data review for GMP testing
  • Test the in-process chemistry (protein concentration determination) and review in-process endotoxin (micro) data
  • Ensure quality through adherence to GMP requirements
  • Manage daily workload to consistently meet departmental deadlines and goals, proactively updating supervisors on operational status and escalating potential delays
  • Participate in quality audits, as needed, providing complete and accurate records consistent with quality guidelines and GDP requirements
  • Interface with customers and cross-functional departments as needed
  • Train personnel and act as a technical consultant, leading process improvement initiatives
  • Perform complex assays and processes requiring a higher level of skill and knowledge as well as identify problems and limitations of the analysis
  • Perform advanced troubleshooting utilizing technical knowledge and theory
  • Design basic experiments, evaluate data, and draw conclusions
  • Provide logical explanations and potential solutions. Conduct training on complex analytical procedures
  • Train and coach associates and senior associates within the team
  • Contribute to support functions of the lab (e.g. maintain equipment, prepare reagents, restock lab supplies, and waste disposal)

Physical Attributes:

  • Perform tasks while wearing personal protective equipment such as chemical protective clothing, goggles, respirator, gloves, etc.
  • Lift, push, and or pull up to 40 pounds

Who You Are

Minimum Qualifications:

  • Bachelor’s degree in chemistry, Biochemistry, Biology or other life science discipline AND 10+ years’ experience in analytical chemistry
  • Master’s degree inchemistry, Biochemistry, Biology or other life science discipline AND 5+ years’ experience in analytical chemistry

Preferred Qualifications:

  • 5+ years of cGMP experience in pharmaceutical, biopharmaceutical or other life science industry
  • Experience with ICE, Solo VPE, UV-Vis, KF, GC, LCMS, IC, CGE, and HPLC including Chromeleon software
  • Strong technical writing and scientific reasoning
  • Trackwise, Chromeleon, LIMS and SAP experience
  • ELISA, Data Integrity, and ALCOA experience
  • Strong command of Microsoft Excel, Word, Smart Sheets and Power Point
  • Antibody Drug Conjugate (ADC) testing experience
  • Experience in lean lab practices and continuous improvement initiatives
  • Strong technical writing, root cause analysis and scientific reasoning
  • Ability to excel in a dynamic team setting environment where shifting priorities are common

Salary range for this position: $64,900 - $107,900

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!

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