Seeking LC-MS Senior Chemist. Applicants must have strong theoretical knowledge of quantitative and qualitative LC-MS analyses as well as sample preparation experience for large molecules (peptides, proteins and nucleotides). Role includes routine analysis of pharmaceutical samples, maintenance of laboratory equipment (including LC-MS), and development of methods (e.g., peptide mapping, intact mass analysis, reduced mass analysis, amino acid analysis, protein sequencing, N-glycan analysis, UV assay, HPLC purity). Familiarity with cGMP laboratory guidelines is preferred. 5+ years of relevant experience with BS or MS in related field or PhD in related field with 2+ years of post-graduate work experience is required.