RayzeBio, Inc Posted August 26, 2026

Sr. Associate Scientist, Radiochemistry

San Diego, United States Full time
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RayzeBio, Inc is the source of truth for this posting and owns the application process. We surface normalized context and market comparison you won't find on the original listing.

About this opportunity

Life at BMS

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/

Sr. Associate Scientist, Radiochemistry

Summary

This position will be responsible for conducting research, experiments, and analysis in the field of radiochemistry. This role involves radiolabeling of diagnostic and therapeutic radioisotopes of peptides, small molecules, and/or antibodies as well as quality testing for in vitro and in vivo work. The Sr. Associate Scientist will work in laboratory settings, collaborating with interdisciplinary teams to advance scientific knowledge and contribute to the advancement of all RayzeBio’s internal programs.

Job Responsibilities

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

Develop radiochemistry methods using radioisotopes such as Lu-177, Ac-225, Cu-64, and Ga-68 (not all-inclusive) for the preparation of radiolabeled peptides and small molecules.

Develop and execute methods for the characterization of radiolabeled compounds, using techniques such as radio-HPLC and radio-TLC chromatography to analyze purity and stability of the radiolabeled compounds

Develop methods and recipes and perform regular syntheses of radiotracers on automated synthesis devices

Demonstrate ability to work independently and troubleshoot

Present at meetings to provide timely input to progress the programs forward

Maintain a clean and safe working environment

Education and Experience

BS with 3 years of experience in Radiochemistry or other related scientific work experience or MS with 1+ years of experience in Radiochemistry or other related scientific work experience

Proper radiation safety practices during radiosynthesis, radioanalytical chemistry operations, and within the lab areas at all times.

 

Skills

Hands on experience with radiometal labeling and analytical methods development in a radiochemistry laboratory setting

Ability to work both collaboratively and independently in a fast-paced and cross-functional environment with evolving priorities

Excellent professional ethics, integrity, and ability to maintain confidential information

Physical Demands

While performing the duties of this job, the employee is regularly required to sit, reach with hands and arms, and talk or hear. The employee must occasionally lift and/or move up to 60 pounds. Specific vision abilities required by this job include close vision and distance vision.

This is a position that requires working in a laboratory environment, protective clothing, gloves, and safety glasses are required while working in a laboratory environment with radioactive materials .

Work Environment

The noise level in the work environment is usually moderate.

 

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.

Compensation Overview:

San Diego - CA - US: $95,505 - $115,730


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

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 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 and RayzeBio 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/

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.com with 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.

R1605079 : Sr. Associate Scientist, Radiochemistry

Job details

Seniority
Senior
Function
Drug Discovery & Preclinical Research
Therapeutic area
Not listed
Location
San Diego, United States
Employment type
Full time

How this role compares

Computed from every other active Drug Discovery & Preclinical Research role in our database, not just this employer's listings.

We currently track 448 comparable Senior Drug Discovery & Preclinical Research roles across 53 biopharma companies.

448Comparable roles tracked
406Currently active
53Companies hiring similar roles
18Countries represented

Salary context

225 of 448 peers report a salary range (USD, annualized)

Peers share this role's job function and a matching or adjacent seniority level -- not necessarily the same therapeutic area or country.

This roleSubject Not listed on this posting
Lowest disclosed · Senior Animal Behaviorist - Primate · Labcorp $70,000/yr – $80,000/yr
Highest disclosed · Toxicology Senior Research Fellow · Vertex Pharmaceuticals Inc (US) $232,000/yr – $348,000/yr
Peer group range $75,000 – $290,000 (median $165,000)

Where these roles are based

Top locations among the 448 comparable roles

United States338
China15
India14
United Kingdom14
Belgium10
Switzerland10

+ 12 more countries

Seniority mix

448 of 448 peers have a known seniority level

Senior234
Principal171
Associate Director43

Therapeutic area mix

49 of 448 peers have a known therapeutic area; the rest are genuinely unlabeled, not hidden

Immunology17
Oncology14
Neuroscience13
Cardiovascular / CVRM3
Gastroenterology1
Dermatology & Aesthetics1

Similar opportunities

The closest matches from our peer group, ranked by how similar they are, not how well you'd qualify for them -- treat this as market context, not a guaranteed shortlist; a weak match is labeled as one below.

60%similar
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Pharmacia & Upjohn Company Groton, United States Senior
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60%similar
Pharmacia & Upjohn Company Groton, United States Senior
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Notify me about similar jobs

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How we calculate "similar"

No black box, no LLM guesswork: a deterministic score built from four normalized attributes. Here's this role's own peer group at different match levels, so you can see the mechanism, not just the result.

Every comparison starts from the same 100-point budget: 25 for working in the same function, 40 for the same therapeutic area, 20 for the same or adjacent seniority, 15 for the same country. A dimension we can't confirm on both sides contributes nothing, never a guess, never a free pass.

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Unmatched or unknown dimensions score exactly the same: 0 points, never a partial guess. A role we know almost nothing about beyond its function bottoms out at 25%; it never inflates to 100% just because there's little to compare against. Seniority uses a defined ladder (Associate → Manager → Associate Director → Senior → Principal → Director → Senior Director → Executive/VP) so "Director" and "Senior Director" count as adjacent, but "Director" and "Executive/VP" do not.