Senior Scientist – Bioanalysis (LC-MS/MS)

Job Title: Senior Scientist - Bioanalysis (LC-MS/MS)

Location: Boston, MA - USA

Industry: Contract Research & Manufacturing


Our client is a Bioanalytical & Biomarker services focused CRO company, providing comprehensive GLP/GCP compliant development services from early discovery support through product registration and more. This particular CRO offers both small & large molecule Bioanalytical services.

The position is to be a Senior Scientist in the BioPharma team (with a focus on LC-MS/MS).


  • Design and execute projects, including sample preparation, method development, troubleshooting, data analysis, and reporting.
  • Apply scientific principles to assess data integrity and troubleshoot scientific studies.
  • Innovate and introduce new techniques to improve operational capability and quality.
  • Provide technical problem-solving assistance using advanced scientific principles and equipment.
  • Assist in directing experiments, evaluating outcomes, and recommending actions.
  • Lead scientific activities, design experiments, and provide training to junior staff.
  • Participate in client meetings and audits.
  • Set up and configure instruments for LCMS methods.
  • Prepare data summaries for senior scientists.


  • Bachelor's degree + 5 years of LC-MS/MS experience OR
  • Master's degree + 4 years of LC-MS/MS experience OR
  • PhD + 3 years of LC-MS/MS experience.
  • Experience in CRO industry, working with large or small molecule LC-MS/MS, proteomics, or protein characterization.
  • Proficiency in bioanalytical sample preparation, quantitative LC-MS/MS, and multi-dimensional chromatography.
  • Preferred experience with proteins, peptides, small molecule biomarkers, and specialized chromatography techniques.

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