Seeking LC-MS Senior Chemist. Applicants must have a strong theoretical knowledge of quantitative and qualitative LC-MS analyses as well as sample preparation experience for large molecules (peptides, proteins and nucleotides). The senior chemist role will include routine analysis of pharmaceutical samples, maintenance of laboratory equipment (including LC-MS), and development of methods (i.e. 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.