Senior Bioanalytical Chemist - Scientist II
Saint Charles, MOFull-timePosted Jun 4, 2026
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Senior Bioanalytical Chemist - Scientist IIFull-timeCompany DescriptionEurofins Scientific is an international life sciences company, providing a unique range of analytical testing services to clients across multiple industries, to make life and our environment safer, healthier and more sustainable. From the food you eat, to the water you drink, to the medicines you rely on, Eurofins laboratories work with the biggest companies in the world to ensure the products they supply are safe, their ingredients are authentic and labelling is accurate.The Eurofins network of companies is the global leader in food, environment, pharmaceutical and cosmetic product testing and in agroscience Contract Research Organisation services. It is one of the market leaders in certain testing and laboratory services for genomics, discovery pharmacology, forensics, advanced material sciences and in the support of clinical studies, as well as having an emerging global presence in Contract Development and Manufacturing Organisations. It also has a rapidly developing presence in highly specialised and molecular clinical diagnostic testing and in-vitro diagnostic products.In over 30 years, Eurofins has grown from one laboratory in Nantes, France to 58,000 staff across a decentralised and entrepreneurial network of 900 laboratories in over 54 countries. Eurofins companies offer a portfolio of over 200,000 analytical methods to evaluate the safety, identity, composition, authenticity, origin, traceability and purity of biological substances and products.In 2021, Eurofins generated total revenues of EUR 6.72 billion, and has been among the best performing stocks in Europe over the past 20 years.Job DescriptionBecome your most extraordinary self! Our team is intensely proud to be a major provider of services and products to the drug discovery research industry. Join Eurofins Discovery Services North America, LLC part of the Eurofins Discovery ™ group of companies serving global clients in the Pharma and Biotech industries. Work alongside industry experts and collaborate with team members to directly and positively impact human health worldwide!We have a philosophy to support work life balance, career progression opportunities and offer many benefits such as formal mentoring programs, tuition reimbursement, extensive career training programs, competitive health benefits, paid time off and 10 annual paid holidays*. Essential Duties and Responsibilities:Performs work in a laboratory setting, meeting the physical job requirements of a lab role.Conducts production assays primarily in ADME Toxicology Services, but will also support BioTherapeutics Services based on business needsDevelops Liquid Chromatography- Mass Spectrometry (LC-MS) methods for ADME/ DMPK applicationsDevelops analytical methods supporting project teams both internally and externally for new assay development.Performs Troubleshooting and Maintenance of Mass Spectrometers and HPLC units. Experience with Sciex® or Thermo High Resolution/ Accurate Mass Instrumentation is a plus.Prepares and manages inventory of buffers, reagents, semi-finished and finished goods.Provides solutions to more complex problems, identifies and initiates process improvementsMaintains high data quality and reproducibility.Performs data and report QC review within the department, and may support study director.Takes ownership of client projects with minimal supervision.Supports validation of new methods, and contributes to expansion of service/product line, equipment, and data management systems.Understands and complies with requirements for work performed at a GxP site.Completes required training and supports 100% of Employee Health and Safety requirements.Demonstrates proficiency with care and maintenance of lab equipment and department assets.Conducts responsible use of confidential IT and business systems, as required.Adheres to department...