Analytical Chemist

A Chemtek is seeking a detail-oriented Analytical Chemist to support the testing, characterization, and documentation of analytical reference materials. This role will play an important part in maintaining product quality and supporting our quality systems. The Analytical Chemist will be responsible for performing analytical testing to verify the identity, purity, and quality of reference materials using multiple analytical techniques. The role will also support method development, product documentation, and continuous improvement of laboratory procedures. This position is ideal for someone with 2–4 years of analytical laboratory experience, particularly in LC-MS and analytical method development, who enjoys working in a collaborative and quality-focused environment. Key Responsibilities: Perform testing on a wide range of organic standards using techniques to verify compound identity, purity, and concentrations Utilize analytical instrumentation including LC-MS, GC-MS, NMR, and HPLC/UHPLC Determine compound purity using HPLC/UHPLC, GC-MS, and quantitative NMR (qNMR) Apply analytical techniques for water content determination (Karl Fisher), elemental analysis (CHN), concentration verification, and residual solvent analysis Conduct stability and homogeneity testing to support product release and shelf-life determination Develop, revise, and maintain laboratory Standard Operating Procedures (SOPs) in accordance with ISO17025 and ISO17034 quality systems Maintain accurate records of analytical testing to ensure data integrity and product traceability Prepare and maintain controlled laboratory documentation within the company quality system Qualifications: Bachelor’s degree in Chemistry, Analytical Chemistry, or related field 2-4 years’ experience working in an analytical/testing lab environment Excellent organizational and communication skills. Ability to work independently and solve problems proactively. Work in-person in a laboratory environment in Woburn, MA Hands‑on experience with LC-MS or other mass spectrometry techniques strongly preferred Compensation: Salary is commensurate with qualifications and experience Bonuses and incentive compensation Benefits: 401(k) retirement program with company matching, paid holidays, paid sick leave, paid vacation, medical, vision, and dental insurance About Us: A Chemtek Inc. is a growing producer of high-quality analytical reference materials supporting pharmaceutical, environmental, food safety, and life science laboratories worldwide. Our mission is to provide reliable analytical standards that enable scientists to produce accurate and reproducible results. For additional information, please visit our website #J-18808-Ljbffr A Chemtek Inc.