Scientist/ Senior Scientist Analytical Development, Mass Spectrometry (m/f/d)
ProtaGene
Burlington, MA · Posted October 16, 2026
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November 2026
- #7Cities where the biggest share of jobs do not need a four-year degree in New England13% · of 15
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- #8Best cities for pay after cost of living in New England$140k · of 11
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How AI is used in this kind of work
Among chemists, AI is already used for some of the tasks. Measured exposure for chemists: 26% (some).
Share of this job’s tasks that AI is already used for at work, from real usage. It is not a forecast of job loss, and a low number means no use seen yet. Source: Anthropic Economic Index.
About the job
We are seeking an experienced and highly motivated Scientist with expertise in LC-MS characterization and analytical method development. This is a hands-on, laboratory-based role with responsibilities including LC-MS development, qualification, and routine analysis. The successful candidate will collaborate closely with multidisciplinary teams across ProtaGene and with external pharmaceutical clients to deliver high-quality analytical solutions and support client programs.
Your Responsibilities
Perform LC-MS characterization of biologics: prepare samples (SPE, IP, LLE), run chromatography and mass spectrometry experiments, and generate data that supports client programs.
Support lab operation, and the maintenance, qualification, and troubleshooting of LC-MS instrumentation and other laboratory equipment.
Independently design and execute laboratory studies, analyze and interpret data, troubleshoot analytical challenges, and communicate findings through technical reports, presentations, and team discussions.
Maintain accurate and compliant laboratory records, electronic laboratory notebooks (ELNs), experimental protocols, and supporting documentation in accordance with company procedures and quality standards.
Prepare, qualify, and maintain assay reagents, reference standards, controls, and other materials required to support analytical testing activities.
Prepare, review, and present project updates, technical data, and study results to internal teams and external clients.
Continuously expand technical expertise and develop analytical skills to support emerging assays and characterization strategies for biologics, gene therapy, and cell therapy programs.
Collaborate effectively with multidisciplinary teams to ensure the timely delivery of high-quality analytical results and project milestones.