Senior Principal Scientist, Bioanalysis

Johnson & Johnson Johnson & Johnson · Pharma · Spring House, PA +1

Senior Principal Scientist in Bioanalysis at Johnson & Johnson, focusing on developing and validating bioanalytical assays (ligand-binding and LC-MS) for drug development across various modalities. The role involves assay lifecycle management, troubleshooting, ensuring GLP/GCLP compliance, supporting regulatory submissions, and mentoring staff. Requires deep expertise in immunoassay development for large molecules and experience with platforms like MSD, Gyrolab, and Quanterix.

What you'd actually do

  1. Serve as Development PK Representative for assigned programs and assays, providing end-to-end accountability for the assay lifecycle, including assay developments, validations, drug stock and reagent qualifications, long-term stability programs, and data reporting.
  2. Design and develop robust immunoassays (primary focus) and chromatographic assays, lead assay troubleshooting efforts for complex bioanalytical challenges by applying logical, science-driven, and innovative solutions. Guide investigations, assess the impact of deviations, and make data-driven decisions while effectively communicating technical challenges to cross-functional stakeholders.
  3. Prepare and/or review key bioanalytical documents, including method reports, validation protocols, validation reports, and bioanalytical study reports, ensuring scientific rigor, quality, and compliance.
  4. Serve as a subject matter expert in immunoassay development and validation for large molecules and complex modalities under Good Laboratory Practices (GLP)/Good Clinical Laboratory Practice (GCLP). Maintain deep knowledge of evolving regulatory expectations, identify gaps in internal practices, and drive updates to SOPs and related documentation to ensure compliance and adoption of best practices.
  5. Influence bioanalytical strategy and contribute to scientific direction within BDDS and across development programs.

Skills

Required

  • Ph.D. degree in Biology, Immunology, Biochemistry, Analytical Chemistry, or related discipline with a minimum of 8 years of relevant industry experience, or an MS degree with a minimum of 10 years industry experience in regulated bioanalysis.
  • Deep, hands-on expertise in immunoassay (LBA) development, optimization, validation, and troubleshooting for large molecules bioanalysis, with demonstrated proficiency across platforms such as MSD, Gyrolab, Quanterix, and ELISA.
  • Proven track record of successfully developing and validating bioanalytical assays under GLP/GCLP.
  • Strong understanding of regulatory guidelines and expectations for bioanalytical method validation and sample analysis.
  • Excellent scientific communication and presentation skills.
  • Mentorship and leadership capabilities.

Nice to have

  • Experience with emerging therapeutic modalities.
  • Familiarity with emerging technologies in bioanalysis.
  • Experience supporting regulatory submissions (e.g., IND and BLA).

What the JD emphasized

  • Good Laboratory Practices (GLP)/Good Clinical Laboratory Practice (GCLP)
  • regulatory submissions
  • GLP/GCLP
  • regulatory expectations