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Biotransformation Scientist

Inotiv
September 09, 2026
Full-time
On-site
St Louis, MO
Clinical Research and Development
Role: Biotransformation Scientist focusing on elucidating enzymatic drug metabolism pathways in preclinical models. Primary objectives include identifying key enzymes involved in metabolizing small molecules, peptides, and oligonucleotides, and establishing in vitro-to-in vivo relationships for drug clearance and half-life prediction. Responsibilities encompass designing and executing LC-MS/MS and HRMS-based assays, characterizing drug disposition mechanisms, and collaborating with pharmacology and toxicology teams to develop cellular models and platform screening methods. Requirements: PhD in Chemistry, Biochemistry, or Analytical Chemistry with 2-5 years (postdoctoral) or MSc with 5-7 years biotransformation experience; expertise in contemporary bioanalytical techniques, enzyme kinetics, and mass spectrometry data analysis. High-value: focus on small molecule, peptide, and oligonucleotide therapeutics, employing in vitro/in vivo ADME studies, with a particular emphasis on drug clearance mechanisms and metabolite structure elucidation. The role involves laboratory-based research in a regulated environment, potentially exposing individuals to hazardous materials. The position may be offered at different seniority levels based on experience and education. Work setup: typical laboratory environment, with safety precautions due to chemical and biological hazards.