Position Summary
The Principal Scientist is responsible for leading method optimization, transfer, and validation in support of the Cell Therapy analytical portfolio. Leads complex projects; provides strategic scientific/technical input; independently troubleshoots non-routine issues using technical, regulatory, and scientific principles. Balances hands-on lab work with cross-functional leadership, mentoring, and external scientific engagement.
Duties/Responsibilities
- Subject matter expert in Cell/Molecular Biology; leads method investigations, optimization/remediations, transfer, and validation per regulatory requirements.
- Independently develop, write, and execute methods, protocols, reports, and related documents aligned with regulatory/corporate guidelines.
- Conceptualize and lead complex projects/investigations/corrective actions/continuous improvement; design and execute experiments; evaluate data; identify risks and impact.
- Represent department in product review boards and regulatory inspections; author analytical sections of regulatory submissions and responses to health authority questions.
- Implement method lifecycle and maintenance programs for viral vector and cell therapy drug products.
- Partner with development organizations on studies/qualification, reagent selection/characterization, and method optimization.
- Represent ASAT on cross-functional/cross-site teams; communicate and collaborate effectively.
Qualifications
- Advanced technical writing.
- Advanced strategic thinking/problem-solving; technically logical.
- Ability to work independently in a fast-paced matrix; meet deadlines; prioritize multiple projects; track record of scientific productivity (publications/presentations/internal contributions).
- Strong communication/collaboration with peers, senior management, and cross-functional teams (local/global).
- Strong hands-on lab skills; execute and interpret complex, high-impact multi-dimensional data for commercial QC.
- Advanced mentoring/coaching/influencing/negotiation/personnel interaction.
- Molecular role: expertise in molecular biology methods, including lentiviral, AAV vectors, and gene delivery platforms.
- Travel as needed.
- Bachelorโs/Masterโs in bioanalytical science preferred (advanced degree preferred).
- 10+ years relevant experience in regulated cellular therapy or gene therapy (or equivalent).
- Expert knowledge of bioanalytical/molecular techniques (cell-based assays, ELISA, qPCR, flow cytometry) and bioanalytical method lifecycle (characterization, validation, transfer); experience training on method execution and instrument operation/standardization.
- cGMP experience; knowledge of FDA/EMA/ICH/USP/EP guidelines for QC of viral vectors, cell therapies, vaccines, and/or biological products.
Work-life Benefits
Paid time off: US exempt flexible time off (unlimited with manager approval) + 11 paid national holidays; or Phoenix/Puerto Rico/Rayzebio exempt/non-exempt/hourly: 160 hours annual vacation + 11 holidays + 3 optional holidays. Additional time off may include sick time, volunteer days, leaves of absence, and Global Shutdown (eligibility-based).
Application Instructions
If your resume does not perfectly align, apply anyway.