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At RayzeBio, every day is an opportunity to ignite meaningful change. As a wholly-owned subsidiary of Bristol Myers Squibb, RayzeBio blends the nimble, pioneering spirit of an emergent biotech with the global expertise and resources of a leading innovator in oncology. Our mission is to develop transformative radiopharmaceutical therapies that offer new hope for patients living with cancer. Here, you'll join a multidisciplinary team where your ideas are valued, your expertise is amplified, and collaboration is at the heart of everything we do. From day one, expect to make an immediate impact-on our science, on our teams, and most importantly, on patients. Learn more about RayzeBio: https://careers.bms.com/rayzebio/

Summary

RayzeBio, a Bristol Myers Squibb company, is a dynamic biotechnology company headquartered in San Diego, CA. The company is focused on improving survival of people with cancer by harnessing the power of targeted radioisotopes. RayzeBio is developing innovative drugs against targets of solid tumors. Led by a successful and experienced entrepreneurial team, RayzeBio aims to be the global leader in radiopharmaceuticals

The Sr. Scientist, Radiopharmaceutical Development is a leading contributor in the design, development, and advancement of RayzeBio's radiopharmaceutical programs. This senior role is responsible for translating cutting-edge scientific discoveries into robust clinical drug products and driving technology transfers. The Sr. Scientist will lead CMC radiopharmaceutical process development, oversee IND-enabling activities, and play a pivotal role in clinical manufacturing. This position demands expertise in radiochemical synthesis, analytical techniques, and radiopharmaceutical formulation, as well as a proven ability to manage complex projects and mentor junior staff.

Job Responsibilities

Essential duties and responsibilities include the following. Other duties may be assigned.

• Process Development & Scale-Up:Drive CMC process development and optimization for clinical drug products, including formulation lock and robust process definition, ensuring scalability and compliance with regulatory standards.
• Technology Transfer:Lead the transfer of advanced radiopharmaceutical processes and technologies to internal and external manufacturing sites, including the Indianapolis facility and CDMO partners.
• Laboratory Oversight:Oversee the development, operation, and maintenance of radiochemistry laboratory infrastructure, ensuring readiness for translational activities from preclinical through clinical phases.
• Collaboration:Foster collaborative relationships with discovery scientists, external academic partners, and CDMOs to address complex scientific questions and pursue joint research efforts.
• Lead Research Initiatives:Independently design and execute advanced radiochemistry and radiolabeling experiments, with a special focus on novel radioisotope and chelator development to enable new classes of radiopharmaceuticals.
• Technical Leadership:Serve as a subject matter expert in radiopharmaceutical production processes, quality control, and advanced analytical methodologies. Provide scientific leadership across multidisciplinary teams.
• Safety & Compliance:Ensure strict adherence to radiation safety protocols, federal and state regulations, and internal guidelines for handling radioactive materials; promote a culture of safety-first and regulatory compliance.
• Data Analysis & Reporting:Interpret complex experimental data, draw scientifically rigorous conclusions, and communicate findings in technical reports, regulatory documentation, and presentations for internal and external stakeholders.
• Project Management & Mentorship:Manage and prioritize research projects, oversee third-party vendors, and mentor junior scientists and associates.
• Documentation:Draft and review CMC sections for regulatory submissions, SOPs, and comprehensive development reports.
• Travel:Less than 10% travel required, including external research sites and manufacturing facilities.

Education and Experience

• BSc +7, MSc + 5 years or PhD 2 years in Chemistry, Radiochemistry, Pharmaceutical Sciences, or related field with relevant industry experience, including significant CMC work with radiopharmaceutical products.
• Experience in radiopharmaceutical companies leading technology transfers to internal manufacturing or external CDMO partners for Phase 1 clinical programs strongly preferred.
• Demonstrated expertise in radiochemical synthesis, purification, formulation, and analytical techniques.
• Proven track record of innovation in radiopharmaceutical development.
• Deep familiarity with federal and state regulatory requirements and safety protocols for radioactive materials.

Skills and Qualifications

• Advanced experience developing stable radiopharmaceutical formulations with targeted attributes such as extended shelf-life, radiochemical purity, and enhanced bio-distribution.
• Hands-on expertise with commercial and custom radiopharmaceutical manufacturing and analytical equipment systems, including automation platforms, radioHPLC, radioTLC, gamma counters, dose calibrators, hot cell manipulators, and advanced gamma spectroscopy.
• Extensive experience with a broad spectrum of radioactive materials for both diagnostic and therapeutic applications.
• Strong professional ethics, integrity, and ability to maintain confidential information.
• Outstanding written and verbal communication skills, with the ability to influence and communicate effectively across all levels, including executive leadership.
• Proactive, innovative thinker who thrives in a fast-paced, multi-disciplinary industrial environment.
• Demonstrated ability to manage complex research projects and mentor junior staff.

Physical Demands

While performing duties, the employee is regularly required to sit, reach with hands and arms, and talk or hear. Occasional lifting and/or moving up to 30 pounds may be required. Specific vision abilities include close and distance vision. Lab work requires use of protective clothing, gloves, and safety glasses.

Work Environment

#RayzeBio

If you come across a role that intrigues you but doesn't perfectly line up with your resume, we encourage you to apply anyway. You could be one step away from work that will transform your life and career.

The starting compensation range(s) for this role are listed above for a full-time employee (FTE) basis. Additional incentive cash and stock opportunities (based on eligibility) may be available. The starting pay rate takes into account characteristics of the job, such as required skills, where the job is performed, the employee's work schedule, job-related knowledge, and experience. Final, individual compensation will be decided based on demonstrated experience.
Eligibility for specific benefits listed on our careers site may vary based on the job and location. For more on benefits, please visit https://careers.bms.com/life-at-bms/.

Benefit offerings are subject to the terms and conditions of the applicable plans in effect at the time and may require enrollment. Our benefits include:

• Health Coverage: Medical, pharmacy, dental, and vision care.

• Wellbeing Support: Programs such as BMS Well-Being Account, BMS Living Life Better, and Employee Assistance Programs (EAP).

• Financial Well-being and Protection: 401(k) plan, short- and long-term disability, life insurance, accident insurance, supplemental health insurance, business travel protection, personal liability protection, identity theft benefit, legal support, and survivor support.

Work-life benefits include:

Paid Time Off

• US Exempt Employees: flexible time off (unlimited, with manager approval, 11 paid national holidays (not applicable to employees in Phoenix, AZ, Puerto Rico or Rayzebio employees)

• Phoenix, AZ, Puerto Rico and Rayzebio Exempt, Non-Exempt, Hourly Employees: 160 hours annual paid vacation for new hires with manager approval, 11 national holidays, and 3 optional holidays

Based on eligibility*, additional time off for employees may include unlimited paid sick time, up to 2 paid volunteer days per year, summer hours flexibility, leaves of absence for medical, personal, parental, caregiver, bereavement, and military needs and an annual Global Shutdown between Christmas and New Years Day.

All global employees full and part-time who are actively employed at and paid directly by BMS at the end of the calendar year are eligible to take advantage of the Global Shutdown.

*Eligibility Disclosure: The summer hours program is for United States (U.S.) office-based employees due to the unique nature of their work. Summer hours are generally not available for field sales and manufacturing operations and may also be limited for the capability centers. Employees in remote-by-design or lab-based roles may be eligible for summer hours, depending on the nature of their work, and should discuss eligibility with their manager. Employees covered under a collective bargaining agreement should consult that document to determine if they are eligible. Contractors, leased workers and other service providers are not eligible to participate in the program.

RayzeBio and Bristol Myers Squibb

RayzeBio was acquired by Bristol Myers Squibb (BMS) in 2024 and is a wholly-owned subsidiary of BMS; however, RayzeBio will continue to operate as a standalone organization.

Supporting People with Disabilities

BMS and RayzeBio are dedicated to ensuring that people with disabilities can excel through a transparent recruitment process, reasonable workplaceaccommodations/adjustmentsand ongoing support in their roles. Applicants can request a reasonable workplaceaccommodation/adjustmentprior to accepting a job offer. If you require reasonableaccommodations/adjustmentsin completing this application, or in any part of the recruitment process, direct your inquiries toadastaffingsupport@bms.com. Visitcareers.bms.com/eeo-accessibilityto access our complete Equal Employment Opportunity statement.

Candidate Rights

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

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/

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 you believe that the job posting is missing information required by local law or incorrect in any way, please contact BMS at TAEnablement@bms.com. Please provide the Job Title and Requisition number so we can review. Communications related to your application should not be sent to this email and you will not receive a response.