Senior Associate Scientist, Purification, RNA Process Development

At Bristol Myers Squibb, our employees often ask, “Who are you working for?”—a question that fuels collaboration, accountability, and urgency in our work. Our purpose-driven culture inspires us to discover, develop, and deliver innovative medicines to prevail over serious diseases. We offer uniquely interesting and meaningful work, opportunities for growth, and a supportive environment that values inclusion, wellbeing, flexibility, and comprehensive benefits. This is work that transforms the lives of patients, and the careers of those who do it.

Position Summary

The RNA Purification Process Development function plays a central role in designing efficient, robust, and scalable manufacturing processes. By combining deep scientific expertise with enabling technologies and strong cross-functional partnerships, RNA Process Development delivers transformative innovation across the pipeline.

 

The Senior Associate Scientist executes robust experiments for drug substance programs spanning early- to late-stage development across circular and linear mRNA modalities. Reporting to the Principal Scientist, this role encompasses hands-on contributions, addressing critical challenges by driving sound experimental execution and manufacturing support. The candidate should be driven by developing and characterizing chromatography and filtration steps for improving the yield, quality and robustness of purification process steps.

Key Responsibilities

• Execute and analyze experiments for existing and novel process modes
• Support the RNA drug substance purification process definition and scale up
• Experiment using high throughput/automated or data rich experimental setups
• Support experiments to confirm robust process performance across the control space
• Collaborate with analytical teams to enable deeper characterization of RNA properties and impurity profiles
• Collaborate closely with upstream PD to characterize IVT feed stream to maximize RNA yield and purity
• Prepare sections of technical reports, and communicate findings internally as appropriate

• Participate in tech transfer activities to GMP manufacturing sites for RNA programs

 

Qualifications & Experience

• Degree in Bio/Chemical Engineering, Bio/Chemistry, or related field
• BS with 4+ years’ experience in science related disciplines
• MS with 2+ years’ experience in science related disciplines
• Knowledge of chromatography, filtration (TFF/UF-DF), and innovative separation unit operations

• Working knowledge of statistical design of experiments (DoE) and analysis of multivariate data

• Experience with performing process analytics and biophysical characterization techniques such as HPLC, CE, & gel electrophoresis

• Knowledge of cGMP, ICH, regulatory guidelines and QbD principles as they apply to risk management and clinical manufacturing is a plus

• Background in providing technical support for clinical manufacturing processes, including support of process investigations, and implementation of proactive process modifications is a plus

• Knowledge of advanced mathematics, nucleic acid chemistry, lipid chemistry, and biology is a plus

• Knowledge of establishing and qualifying scale down models and mechanistic models for process characterization is a plus

 

We hire for skills and capabilities, not just credentials – if this role excites you, but doesn’t perfectly match your resume, we encourage you to apply anyway.

Cambridge - MA - US: $96,010 - $116,339

The starting pay range(s) listed above is for full-time employees (FTE). You may also be eligible for additional discretionary incentive cash and stock opportunities. We determine starting pay thoughtfully – carefully considering the nature of the role, required skills, work location, schedule and the knowledge and experience you bring. Final compensation is guided by pay equity principles and applicable employment laws. Compensation programs are reviewed on an ongoing basis and may be adjusted over time to reflect evolving market factors, and individual, team or Company performance.

Benefits:

Subject to the terms and conditions of the applicable plans then in effect, you may be eligible to participate in our comprehensive benefit plans – including wellbeing support, retirement and financial protection benefits, and insurance offerings (medical, dental, vision, life and disability).

U.S.-based exempt employees are eligible for Flexible Time Off (FTO), which provides paid time off without a set accrual limit, subject to manager approval, along with 11 paid company holidays each year.

Non-exempt employees, RayzeBio employees, and employees located in Puerto Rico receive 160 hours of paid vacation annually for new hires (subject to manager approval), 11 paid company holidays, and 3 optional holidays.

Depending on eligibility, employees may also have access to additional time-off benefits, including paid sick leave, up to two paid volunteer days per year, summer hours flexibility, and leaves of absence for medical, personal, parental, caregiver, bereavement, or military needs. Eligible employees also enjoy an annual Global Shutdown between Christmas Day and New Year's Day.

U.S.-based job seekers can explore full benefit offerings at https://careers.bms.com/benefits

How We Work

Where you work matters – because collaboration, innovation and patient impact happen in many settings. Our roles are structured across four work models: site-essential, site-by-design, field-based and remote-by-design. The model assigned to this role is based on its core responsibilities. Learn more at https://careers.bms.com/ways-of-working.

Supporting People with Disabilities

BMS is dedicated to ensuring that people with disabilities can excel through a transparent recruitment process, reasonable workplace accommodations/adjustments and ongoing support in their roles. Applicants can request a reasonable workplace accommodation/adjustment prior to accepting a job offer. If you require reasonable accommodations/adjustments in completing this application, or in any part of the recruitment process, direct your inquiries to adastaffingsupport@bms.com. Visit careers.bms.com/eeo-accessibility to access our complete Equal Employment Opportunity statement.

Candidate Rights

BMS will consider qualified applicants with arrest and conviction records, pursuant to applicable laws in your area.

For roles based in Los Angeles County only:  If you live in or expect to work from Los Angeles County if hired for this position, please visit this page for important additional information: https://careers.bms.com/california-residents/

For roles based in Washington State only: If you live in or expect to work from Washington State if hired for this position, please visit this page for important information about the Washington Fair Chance Act.

Data Protection

We will never request payments, financial information, or social security numbers during our application or recruitment process. Learn more about protecting yourself at https://careers.bms.com/fraud-protection.

Any data processed in connection with role applications will be treated in accordance with applicable data privacy policies and regulations.

If this posting is missing required information required by local law or incorrect, contact BMS at TAEnablement@bms.comwith the Job Title and Requisition number. Do not send application-related inquiries to this email. To check your application status, please login to your Candidate Home Account.

R1607954 : Senior Associate Scientist, Purification, RNA Process Development