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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # LC-MS/MS Sr. Scientist - **Company:** Eurofins View all jobs - **Location:** Saint Charles, MO, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Data Analysis, Software Applications, Business Systems, Data Management, GXP - **Published:** September 4, 2026 - **Apply:** https://www.careerjet.com/job/usc53825603e171ce0c0c53a62b36dc8f9/eaa ## About the Role * B.S. with minimum 5 years of industry laboratory experience with LCMS/MS * M.S. with minimum 3 years of industry laboratory experience with LCMS/MS * Ph.D. with minimum 1 year of laboratory experience with LCMS/MS Basic Minimum Work Requirements: * Direct experience with Liquid Chromatography- Mass Spectrometry and/or ultraviolet spectrometry (LC-MS or LC-UV) in a contract research organization or industry laboratory for ADME/ DMPK applications * Experience working in a Quality Management System * Scientific expertise with mass spectrometry-based quantification for ADME/ DMPK applications in biological matrices. * Experience with analytical method development and optimization * Familiarity with concepts of validation of bioanalytical methods in accordance with regulatory (FDA, ICH) guidelines * Experience with liquid handling, automation, solid-phase extraction (SPE), HTS applications, and large-scale screening * Experience in small team leadership and project management * Experience in leading and delivering results in R&D or innovation programs * Authorization to work in the United States indefinitely without restriction or sponsorship. The Ideal Candidate Possesses the Following: * Good communication and interpersonal skills * Demonstrated proficiency in contributing independently on a project team with time and quality deliverables * Ability to read, write, and interpret documents, such as standard operating procedures and technical reports * Ability to perform mathematical calculations, statistical analyses, and data interpretation * Ability to multitask with organization and manage time effectively * Ability to solve practical problems and troubleshooting skills * Ability to work in a laboratory setting, according to physical requirements of a laboratory role * Lab equipment and office computer/software proficiency * Above average oral and written communication skills * Demonstrates a positive attitude, capacity for team environment, and exhibits a genuine interest in drug discovery in support of advancing human health * Ability to develop new methods, and lead research and development projects * Ability to review and QC release data/reports * Ability to lead small, informal sub-teams, train, and train new team members * Ability to conduct mid-size projects with minimal supervision * Ability to contribute to strategic vision, establishment of new service lines, equipment, and data management systems * Ability to easily support cross-functional demands ## Description The Scientist I - Analytical Chemist will support the Eurofins Discovery business in contract research services. This role requires applied experience and proven knowledge in analytical chemistry methods with related experience in a contract research organization (CRO) or industry laboratory. LCMS Sr. Scientist Responsibilities Include but are not Limited to the Following: * Performs work in a laboratory setting, meeting the physical job requirements of a lab role. * Conducts production assays primarily in ADME Toxicology Services, but may support BioMAP®, Immunosignaling, Ion Channel, and/or OncoPanel Services based on business needs. * Develops Liquid Chromatography- Mass Spectrometry (LC-MS) methods for ADME/ DMPK applications * Develops 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 Waters 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 improvements * Maintains 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 SOPs and documentation requirements, maintains accurate data management and reporting. * Supports unit goals and demonstrates Eurofins' competencies, as defined in the job plan. * Provides training to colleagues and external end users, when required. * Contributes to scientific community, and site research and development objectives. * Works effectively in a team environment, under minimum direction, to achieve business production, project timelines, and quality objectives. * Adjusts work hours and provides cross-functional support to other departments, as required, and maintains accountability in delivering to client needs/timelines. * Routinely communicates project updates to internal and external clients. * Performs other duties, as assigned ## Related Videos - [It's all about the Data](https://www.wearedevelopers.com/videos/425-it-s-all-about-the-data) - [Data Science in Retail](https://www.wearedevelopers.com/videos/586-data-science-in-retail) - [Blueprints for Success: Steering a Global Data & AI Architecture](https://www.wearedevelopers.com/videos/1577-blueprints-for-success-steering-a-global-data-ai-architecture) - [Geometric deep learning for drug discovery](https://www.wearedevelopers.com/videos/264-geometric-deep-learning-for-drug-discovery) - [Data Science, ML & AI in the Oil and Gas Industry at NDT Global - Dr. Katja Träumner](https://www.wearedevelopers.com/videos/1308-data-science-ml-ai-in-the-oil-and-gas-industry-at-ndt-global-dr-katja-traumner) - [Designing How Work Feels: The Science Behind Sanofi’s Workplace Experience](https://www.wearedevelopers.com/videos/1848-designing-how-work-feels-the-science-behind-sanofi-s-workplace-experience) ## Related Articles - [Data Analyst Salary in the UK](https://www.wearedevelopers.com/magazine/278-data-analyst-salary-in-the-uk) - [Data Analyst Salary in Switzerland](https://www.wearedevelopers.com/magazine/276-data-analyst-salary-in-switzerland) - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer) - [Data Analyst Salary Germany](https://www.wearedevelopers.com/magazine/277-data-analyst-salary-germany) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [Best Companies to work for in London: Top 25 Companies in 2023](https://www.wearedevelopers.com/magazine/187-best-companies-to-work-for-in-london-top-25-companies-in-2023)