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Senior Scientist Process Development


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:

Working in the Contract Testing, Development, and Manufacturing Organization (CTDMO) within the Life Sciences group of MilliporeSigma, this role will serve as an individual contributor in the Process and Analytical Development organization.  The role will involve working in a lab setting on process development and optimization for external customers in the field of Antibody Drug Conjugates (ADC) or other Antibody Conjugates.  The role will require problem solving, working within project timelines, and contributing to documentation for method qualification and transfer into GMP manufacturing and quality control organizations. 



  • Serve as a subject matter expert in process and analytical development, capable of troubleshooting / providing efficient and innovative solutions, and supporting transfer to GMP manufacturing. 
  • Strong customer-facing skills, documents experimental results, communicates results to all stakeholders, authors method development and qualification documents, contribute to information for customer proposals.
  • Serves as a project lead and ensures project deliverables are on quality and on time, develops multiple technical approach plans as needed to solve problems and mitigate risk, ensures methods are in place for efficient GMP start.
  • Independently lead project teams, influences exemplary work in other team members, leads process improvement initiatives, scout for new technologies / emerging trends, proactively considers the impact of quality, regulatory, manufacturing, and safety requirements when planning project activities.


Who You Are:

Minimum Qualifications:

  • Bachelor’s Degree in Chemistry, Biochemistry, Biomedical Engineering or other scientific discipline with 6+ years’ research experience         


  • Master’s Degree in Chemistry, Biochemistry, Biomedical Engineering or other scientific discipline with 2+ years’ research experience


  • Ph.D in Chemistry, Biochemistry, Biomedical Engineering or other scientific discipline with 1+ years’ research experience


Preferred Qualifications:

  • Extensive hands-on process development experience in chromatography, ultrafiltration, and/or reaction kinetics
  • Working knowledge of Microsoft Office suite and digital documentation (modern data acquisition systems and electronic notebooks) as well as experience with advanced data analysis and/or statistical software systems
  • Knowledgeable about GMP and regulatory requirements as well process transfers
  • Experience working with or leading cross-functional matrix teams
  • Excellent time management, written and verbal communication skills

What we offer: We are curious minds that come from a broad range of backgrounds, perspectives, and life experiences. We celebrate all dimensions of diversity and believe that it 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 our diverse team!


If you would like to know more about what diversity, equity, and inclusion means to us, please visit


Job Requisition ID:  276052
Location:  St. Louis
Career Level:  D - Professional (4-9 years)
Working time model:  full-time

North America Disclosure
The Company is committed to accessibility in its workplaces, including during the job application process. Applicants who may require accommodation during the application process should speak with our Candidate Services team at 844-655-6466 from 8:00am to 5:30pm ET Monday through Friday. If you are a resident of a Connecticut or Colorado, you are eligible to receive additional information about the compensation and benefits, which we will provide upon request.  You may contact 855 444 5678 from 8:00am to 5:30pm ET Monday through Friday, for assistance.

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