Senior Bioanalytical Chemist - Scientist II

🇺🇸 Saint Charles, MO
Posted 2 months ago
Expires June 9, 2026

Eurofins is seeking a Senior Bioanalytical Chemist - Scientist II to join our team in Saint Charles, Missouri. As a global leader in life sciences, Eurofins provides a comprehensive range of analytical testing services to ensure the safety and quality of products across various industries. This role offers the opportunity to work alongside industry experts and contribute directly to advancements in human health.

The Senior Bioanalytical Chemist will be responsible for developing and conducting production assays primarily within ADME Toxicology Services, with additional support for BioTherapeutics Services as needed. Key duties include developing Liquid Chromatography-Mass Spectrometry (LC-MS) methods for ADME/DMPK applications, troubleshooting and maintaining mass spectrometers and HPLC units, and preparing and managing inventories of buffers and reagents. The role also involves providing solutions to complex problems, initiating process improvements, and ensuring high data quality and reproducibility.

Candidates should possess a Bachelor's degree with 10 years of relevant experience, a Master's degree with 7 years of relevant experience, or a Ph.D. with 3 years of relevant experience. Essential qualifications include direct experience with LC-MS in areas such as bioanalytical method development for small and/or large molecules, drug metabolism and metabolite identification, or mass spectrometry-based proteomics. Proficiency in troubleshooting LC-MS systems, strong communication and interpersonal skills, and experience working within a Quality Management System are also required.

Eurofins offers a comprehensive benefits package, including competitive health benefits, paid time off, and 10 annual paid holidays. Additional perks include formal mentoring programs, tuition reimbursement, and extensive career training programs.

Joining Eurofins means becoming part of a team that values work-life balance and career progression. Our collaborative environment encourages professional growth and provides opportunities to make a meaningful impact on global health and safety.

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