
Senior Scientist - Analytical Chemist
Saint Charles, MOFull-timeSeen 2 days agoSeen in employer's feed 2 days ago
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Job overview
The Senior Scientist – Analytical Chemist supports Eurofins Discovery contract research services through analytical chemistry method development and analysis. The role develops LC-MS methods for ADME/DMPK and bioanalysis, supports project teams and method validation, and provides laboratory leadership and mentorship. Candidates should bring substantial LC-MS experience in a CRO or industry laboratory, with expertise in bioanalytical methods, mass spectrometry, and regulatory validation.
Skills & qualifications
Skills
Qualifications
Benefits
Full job description
Saint Charles, MO, USA
Full-time
Company Description
Eurofins 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 Organization 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 Organizations. It also has a rapidly developing presence in highly specialized 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 decentralized 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 2024, Eurofins generated total revenues of EUR € 6,515 billion, and has been among the best performing stocks in Europe over the past 20 years.
Job Description
Are you looking to grow your career in analytical chemistry? Come join our growing team! The Scientist II – Analytical Chemist will support the Eurofins Discovery business in contract research services. This role requires applied experience and proven knowledge in analytical chemistry method development and analysis, with related experience in a contract research organization (CRO) or industry laboratory.
Here's what you'll do:
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Perform work in a laboratory setting, meeting the physical job requirements of a lab role.
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Develop Liquid Chromatography- Mass Spectrometry (LC-MS) methods for ADME/ DMPK and BioAnalysis applications
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Provide leadership and mentorship for junior scientists, and lab leadership through daily lab management, equipment management and lab planning.
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Develop analytical methods supporting project teams both internally and externally for new assay development.
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Perform troubleshooting and maintenance of Mass Spectrometers and HPLC units.
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Experience with Sciex® or Thermo High Resolution/ Accurate Mass Instrumentation is a plus.
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Prepare and manages inventory of buffers, reagents, semi-finished and finished goods.
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Provide solutions to more complex problems, identifies and initiates process improvements
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Perform data and report QC review within the department and may support the Study Director.
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Support validation of new methods that contribute to expansion of service/product line, equipment, and data management systems.
Qualifications
The ideal candidate:
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5+ years of of direct/demonstrated experience with Liquid Chromatography- Mass Spectrometry (LC-MS) in a contract research organization or industry laboratory in one or more of the following areas:
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Bioanalytical Method Development for Small and/or Large Molecules
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Drug Metabolism and Metabolite Identification w/ Structural Elucidation
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Mass Spectrometry-Based Proteomics experimental design & execution
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Demonstrated experience with validation of bioanalytical methods in accordance with regulatory (FDA, ICH, OECD) guidelines.
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Good communication and interpersonal skills
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Experience working in a Quality Management System
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Demonstrated proficiency in High-Throughput analytical method development for small molecules.
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Experience in leading and delivering results in R&D or innovation programs
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B.S. with 7 years of relevant experience
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M.S. with 5 years of relevant experience
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Ph.D. with 3 years of relevant experience
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Or an equivalent combination of education and experience
Additional Information
The position is full-time, Monday-Friday, 8 a.m.- 5 p.m., with overtime as needed. Candidates living within a commutable distance of St. Charles, MO are encouraged to apply.
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Excellent full time benefits including comprehensive medical coverage, dental, and vision options
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Life and disability insurance
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401(k) with company match
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Paid vacation and holidays
Eurofins USA Discovery Services is a Disabled and Veteran Equal Employment Opportunity employer.
How this job compares
Set against the 373 open Analytical Chemist jobs on Olive Jobs, counted October 30, 2026.
- Pay
- This postingNot listed
- US median$73–115K/yr59 salary ranges
- US median$28–32/hr51 hourly ranges
- Openings
- Olive Jobs lists 21 open Analytical Chemist jobs in Missouri and 373 across the US. None of them nationwide are listed as remote or flexible.
- Hiring the most in Missouri
- Eurofins US Network (this employer)9 open
- Eurofins7 open
- Parexel4 open
- Experience
- This posting asks for at least 7 years of experience — more than three in four Analytical Chemist postings that state a minimum ask for (median 1 year, across 334 postings).
- Education
- 135 of the 373 open Analytical Chemist jobs (36%) ask for a bachelor's degree or higher.
Counted across the open, public US postings on Olive Jobs on October 30, 2026. Pay medians are the middle values of the low ends and of the high ends of postings that list both ends of a range in the same cadence (a yearly salary or an hourly rate); a range's midpoint is halfway between its ends. Pay and experience figures resting on fewer than 20 postings are left out.
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