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Legend Biotech US

Scientist, Immunoassays

Somerset, USAOn-sitePosted 1 week ago

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Job type
Not listed
Work mode
On-site
Level
Not listed
Department
Healthcare
Experience
No experience required
Posted
Sep 23, 2026

About the role

Role Overview

The Scientist, immunogenicity & Immunoassays is responsible for developing, qualifying, validating, and supporting bioanalytical assays used to assess immunogenicity and immune responses in preclinical and clinical studies. The successful candidate will have hands-on experience with Anti-Drug Antibody (ADA) assays, ELISAs, and other ligand-binding immunoassays and will contribute to assay development, method optimization, sample analysis, data interpretation, and regulatory documentation.

This position requires strong laboratory skills, scientific problem-solving abilities, and the capability to work collaboratively in a cross-functional environment supporting cell therapy, and gene therapy programs

Key Responsibilities

  • Perform method development, qualification and validation for of soluble biomarker and immunogenicity (ADA) assays using ligand binding assay (ELISA, MSD and Luminex).
  • Troubleshoot assay related issues with minimal guidance.
  • Prepare and review assay protocols, validation plans, reports, SOP and technical documents.
  • Data analysis using relevant analytical software.
  • Perform routine laboratory responsibilities such as sample coordination, receiving and reconciliation using LIMS with maintaining adequate chain of custody and documentation.
  • Use of ELN (electronic notebooks) to record laboratory work and for inventory management.
  • Ensure the documentation and laboratory work is in compliance with GXP and GLP like regulatory environments.
  • Ensure the assay qualification and validation are performed following the FDA, EMA and ICH guidelines.
  • Collaborate with scientists, study managers, and cross-functional teams to support program timelines.
  • Assist in method transfer and assay implementation activities.
  • Participate in continuous improvement initiatives to enhance assay robustness and laboratory efficiency.
  • Present scientific data at internal and external meetings.

Requirements

  • PhD in Biology, Immunology, Biochemistry, Biotechnology, Pharmaceutical Sciences, or related scientific field with 0-3 years of relevant industry experience. OR Master's degree in a related scientific discipline with 6-8 years of relevant industry experience.
  • Hands-on experience with ELISA assay and MSD (Meso Scale Discovery) and Luminex platform.
  • 2-6 years of hands-on experience with biomarker and ADA assay development and validation.
  • Experience with non-clinical and clinical sample analysis in a regulated environment.
  • Use of LIMS and ELN for sample logistics and documentation.
  • Solid understanding of FDA and ICH guidelines for Ligand Binding Immunoassay qualification and validation for Immunogenicity assessment and biomarkers.
  • Work in a clinical, research, pharmaceutical, or diagnostic laboratory.
  • Use of personal protective equipment (PPE) is required.
  • Involve handling biological specimens and hazardous materials following safety guidelines.
  • AI Literacy:
    • Possesses a working knowledge of AI technologies and approved AI tools, applies them responsibly to enhance productivity and decision-making, exercises appropriate human oversight of AI-generated outputs, and complies with organizational policies governing AI use.