Senior Scientist, Analytical Development; FFBA)

Legend Biotech is a global biotechnology company dedicated to treating and, one day, curing life‑threatening diseases. Headquartered in Bridgewater, New Jersey, we are advancing the next generation of cell therapy through a portfolio of innovative technologies, including autologous, allogeneic, and in vivo cell therapy approaches. Our research spans chimeric antigen receptor T-cell (CAR-T), T-cell receptor (TCR-T), natural killer (NK) cell-based therapies, and other emerging platforms designed to transform the treatment of serious diseases.

From our global network of research and development sites, we are committed to discovering and developing safe, effective, and cutting‑edge therapies for patients worldwide.

Legend Biotech entered into a global collaboration agreement with Johnson & Johnson to jointly develop and commercialize CARVYKTI® (ciltacabtagene autoleucel; cilta-cel). Through this strategic partnership, we combine complementary expertise and capabilities to advance innovative immunotherapies for patients living with multiple myeloma.

Legend Biotech is seeking a Senior Scientist, Analytical Development (FFBA) as part of the Technical Development team based in Somerset, NJ.

We are seeking a dynamic and scientifically driven Senior Scientist to join our empowered Analytical Development organization. This role will focus on the establishment, development and qualification of analytical assays, including but not limited to flow cytometry‑based methods, cell culture‑based methods, immunoassays, compendial methods, and other bioanalytical strategies to support the development and manufacturing of Legend’s pipelines. The ideal candidate will be a hands‑on leading scientist, capable of mentoring junior scientists while also contributing strategically to cross‑functional collaborations with other functional teams, and deeply understanding of GxP requirement.

• Develop, optimize, and execute analytical methods to support cell and gene therapy product releasing and characterization, including but not limited to compendial methods, titer, particle size, flow cytometry, cell-based potency or functional methods, and bioanalytical (e.g., ELISA) assays.
• Guide method development activities to support phase‑appropriate analytical deliverables (including potency, purity, safety, etc.) with an emphasis on scientific rigor, data integrity, and patient‑centricity.
• Drive the timely tech transfer of assays from collaborators to AD, and/or from AD to QC and external collaborators.
• Identify and refine critical parameters and material/reagents during assay prequalification activities; generate and qualify critical materials including but not limited to cell banks.
• Drive the development and qualification of release assays for early‑phase clinical programs, and ensure execution on aggressive timelines.
• Author and review analytical related documentation including but not limited to analytical methods, SOPs, protocols, and reports.
• Performing pre‑qualification, assay qualification, product release testing, and product stability testing in a quality control environment.
• Collaborate cross‑functionally with QC, PD and Manufacturing teams to ensure seamless assay execution, troubleshooting, and continuous improvement.
• Present scientific data and trends at internal and external forums
• Ensure proper documentation practices including lab notebooks, QC records, and equipment maintenance logs.
• Balance multiple projects while meeting established timelines.
• This role is empowered to make independent decisions related to the planning, execution, analysis, and troubleshooting of analytical method development, qualification, transfer, and characterization activities within established project…