Scientist - Analytical Assay
Eurofins · Chesterfield, MO, United States · Posted Jun 30, 2026
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We are seeking a highly motivated Analytical Scientist to support biotherapeutic process development programs, with a primary focus on large molecule characterization (proteins, polysaccharides, nucleic acids, and related biologics).
In this role, you will contribute to the development and execution of analytical methods that enable process understanding, product characterization, and quality assessment across development stages.
Key Responsibilities
Provide hands-on analytical support for biotherapeutic process development teams
Perform and optimize analytical assays for large molecule characterization
Analyze and interpret data, ensuring accuracy and alignment with project goals
Collaborate cross-functionally with process development, quality, and project teams
Maintain clear and detailed documentation in accordance with regulatory and quality standards
Support troubleshooting and continuous improvement of analytical methods
Required technical experience: Hands-on experience with Capillary Gel Electrophoresis (CGE), qPCR, and HPLC
Experience with SEC-MALS (Size Exclusion Chromatography–Multi-Angle Light Scattering) is strongly valued
Bachelor’s or Master’s degree in Biotechnology, Biochemical Engineering, Analytical Chemistry, Chemical Engineering, or a related scientific discipline
3–5 years of relevant industry experience in a laboratory or biotherapeutic development environment
Must have authorization to work in the United States without current or future sponsorship requirements
Candidates located within a commutable distance to Chesterfield, MO are highly encouraged to apply
Preferred Qualifications
NMR experience
Mass spectrometry experience
Experience working with electronic laboratory notebook (ELN) systems and/or GMP documentation practices
Familiarity with Empower or OpenLab software
Position is full-time, schedule is 1st shift Monday-Friday, 8AM-5PM.
LinkedIn: #LI-EB1
Eurofins USA PSS Insourcing Solutions is a Disabled and Veteran Equal Employment Opportunity employer.
At Eurofins PSS, we work with leading international companies across the pharma, medical device, food, cosmetic & consumer products industries - who all trust us with their mission-critical testing. For 20 years, our international network of teams have served clients at their sites, across 20 countries.
PSS® is part of Eurofins Scientific, an international life sciences company, providing a unique range of analytical testing services across multiple industries, through a network of over 950 laboratories in 60 countries, and c.a. 63,000 employees.
Life at Eurofins is a meritocracy, where people are empowered to make decisions and are rewarded for their success, allowing them to advance quickly. Become your most extraordinary self with support and development throughout your career.