CareerPlan

Senior Scientist - Analytical Chemist

Saint Charles, MO, usFull-time2026-10-30 → 2026-11-10

Core

Develop and validate LC-MS methods for ADME/DMPK and BioAnalysis applications in a contract research setting.

Role type

Senior Scientist (Analytical Chemist)

Builds

Bioanalytical methods and assays for drug metabolism and proteomics

Domain

Life Sciences / Pharmaceutical Contract Research

Required skills

LC-MS method development, Mass Spectrometry, HPLC, Bioanalytical Method Development, Drug Metabolism, Structural Elucidation, Proteomics, Method Validation, Regulatory Guidelines (FDA/ICH/OECD), Quality Management Systems, Troubleshooting, Lab Management

Preferred skills

Sciex or Thermo High Resolution/Accurate Mass Instrumentation, High-Throughput method development, R&D leadership

Technologies

LC-MS, HPLC, Mass Spectrometers

Responsibilities

Develop LC-MS methods for ADME/DMPK and BioAnalysis, Perform troubleshooting and maintenance of Mass Spectrometers and HPLC units, Provide leadership and mentorship for junior scientists, Prepare and manage inventory of buffers and reagents, Perform data and report QC review, Support validation of new methods

Seniority

Senior, hands-on IC with mentorship responsibilities