✨ Our 2026 Hiring Report is out — see what 146,050 job postings say about getting hired.

Read the report →
JOB DETAILS

Quality Control Scientist

CompanyThe businesses of Merck KGaA, Darmstadt, Germany
LocationSt. Louis
Work ModeOn Site
PostedNovember 12, 2026
About The Company
We are Merck KGaA, Darmstadt, Germany and its global affiliates. We are a leading global science and technology company headquartered in Germany. We are curious explorers, courageous pioneers, and ingenious inventors. Our colleagues across the globe love innovating with science and technology to enrich people’s lives with our solutions in Life Science, Healthcare, and Electronics. Together, we dream big and are passionate about caring for our rich mix of people, customers, patients, and the planet. We believe in the positive power of science and technology. It has determined our actions since 1668 and inspires us to continue researching for a future worth living. As a family-owned company with over 350 years of experience, we stand for sustainability, responsibility, and innovative strength. We take pride in being a diverse and inclusive company that values and fosters the talents and abilities of our employees. That's why we are always looking for curious minds that see themselves imagining the unimaginable with us. Privacy Statement: https://www.emdgroup.com/en/privacy-statement.html
About the Role

 

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 in chemistry, 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!

Key Skills
Analytical chemistrycGMPQuality controlTechnical writingTroubleshootingData reviewProtein concentration determinationEndotoxin testingICESolo VPEUV-VisHPLCChromeleonELISARoot cause analysisScientific reasoning
Categories
Science & ResearchHealthcareManufacturing
Benefits
Health insurancePaid time offRetirement contributions
Job Information
📋Core Responsibilities
The Quality Scientist will perform analytical testing and data review to support cGMP release, in-process, and stability testing of drug substances. They will also lead process improvement initiatives, conduct complex assays, and provide technical training to team members.
📋Job Type
full time
💰Salary Range
$64,900 - $107,900
📊Experience Level
10+
💼Company Size
6982
📊Visa Sponsorship
No
💼Language
English
🏢Working Hours
40 hours
Apply Now →

You'll be redirected to
the company's application page