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Challenging. Meaningful. Life-changing. Those aren't words that are usually associated with a job. But working at Bristol Myers Squibb is anything but usual. Here, uniquely interesting work happens every day, in every department. From optimizing a production line to the latest breakthroughs in cell therapy, this is work that transforms the lives of patients, and the careers of those who do it. You'll get the chance to grow and thrive through opportunities uncommon in scale and scope, alongside high-achieving teams. Take your career farther than you thought possible.

Bristol Myers Squibb recognizes the importance of balance and flexibility in our work environment. We offer a wide variety of competitive benefits, services and programs that provide our employees with the resources to pursue their goals, both at work and in their personal lives. Read more: careers.bms.com/working-with-us .

RayzeBio is seeking a Sr Associate Scientist 1- Microbiology, reporting to the Director- Microbiology Quality Control. The position will support testing activities related to radiopharmaceuticals. This role will also involve advanced laboratory analyses, troubleshooting efforts, method validation and qualifications ensuring compliance with regulatory and QA system requirements, and maintaining high standards of quality for radioisotopes and radiopharmaceutical product release. The Sr Associate Scientist 1 will collaborate with the Radiation Safety Officer (RSO) to ensure laboratory compliance with the radiation safety program at the Indianapolis site. The position will require the applicant to work with and around ionizing radiation and hazardous chemicals.

The position will be located at RayzeBio's manufacturing plant, in Indianapolis, IN.

Job Responsibilities

+ Laboratory Testing

+ Perform routine microbiological assays including but not limited to bioburden, endotoxin, sterility, environmental monitoring, microbial identification and media qualification testing.

+ Execute method qualification, verification and validation studies with minimal supervision.

+ Troubleshoot assay related issues and perform out of trend analysis.

+ Support investigations/deviations, including root cause analysis and CAPA development to ensure timely close-out.

+ Ensure all assay documentation is audit ready.

+ Prioritize workload to ensure timely completion of an on-time and right first time manner.

+ Foster a positive and collaborative work environment within the lab and with external stakeholders both within the site and outside the site.

+ Train team members on assays.

+ Work with Manager and/or Investigation Writer to ensure any discrepancies are resolved in a timely manner.

+ Continuous Improvement

+ Support continuous improvement programs such as new technologies and improve data visibility.

+ Identify other opportunities for process improvements and implement changes to increase quality and efficiency within the Quality Control laboratories.

+ Quality Assurance/Regulatory Compliance

+ Participate in troubleshooting of issues and implement corrective actions to improve quality processes as a result of investigations or internal audits.

+ Work with RSO and QA to ensure compliance with GMP regulations, safety guidelines, and quality standards (FDA, USP, NRC, EP, and other regulatory agencies as needed).

+ Weekend work, early starts, or late ending times may be required.

Education and Experience

**·** BS in microbiology or related field with 3+ years of direct radiopharmaceutical experience or 4+ years of experience in pharmaceutical field, OR MS in microbiology or related field with 3+ years of experience in pharmaceutical field.

•A strong background in microbiology and aseptic manufacturing is required.

Preferred Experience:

•Experience in radiopharmaceutical field

•Experience handling radioactive materials

Skills:

+ Highly motivated and organized professional with the ability to work independently or in a team environment **.**

+ Attention to details and data integrity

+ Experience with software such as Sherpa or LIMs or equivalent data systems

+ Multi-disciplined scientist with GMP experience. Radiochemistry experience preferred.

+ Experience with root cause techniques such as 6 M's, 5 Why's, fishbone, or similar preferred.

+ Very personable with strong communication skills and cross-functional collaboration

+ Ability to multi-task and prioritize work based on multiple workflows.

+ Good organizational skills are required.

+ Work with multiple computer systems, including Microsoft Office.

+ 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 40 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.

\#LI-ONSITE

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.

Compensation Overview:

Indianapolis - RayzeBio - IN: $82,236 - $99,650

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:** T he 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.

Uniquely Interesting Work, Life-changing Careers

With a single vision as inspiring as Transforming patients' lives through science™ , every BMS employee plays an integral role in work that goes far beyond ordinary. Each of us is empowered to apply our individual talents and unique perspectives in a supportive culture, promoting global participation in clinical trials, while our shared values of passion, innovation, urgency, accountability, inclusion and integrity bring out the highest potential of each of our colleagues.

On-site Protocol

BMS has an occupancy structure that determines where an employee is required to conduct their work. This structure includes site-essential, site-by-design, field-based and remote-by-design jobs. The occupancy type that you are assigned is determined by the nature and responsibilities of your role:

Site-essential roles require 100% of shifts onsite at your assigned facility. Site-by-design roles may be eligible for a hybrid work model with at least 50% onsite at your assigned facility. For these roles, onsite presence is considered an essential job function and is critical to collaboration, innovation, productivity, and a positive Company culture. For field-based and remote-by-design roles the ability to physically travel to visit customers, patients or business partners and to attend meetings on behalf of BMS as directed is an essential job function.

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 [email protected] . Visit careers.bms.com/ (https://careers.bms.com/eeo-accessibility) eeo-accessibility to access our complete Equal Employment Opportunity statement.

Candidate Rights

BMS 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 [email protected] . 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. Inquiries related to the status of your application should be directed to Chat with Ripley.

R1597920 : Sr Associate Scientist I - Microbiology **Company:** Bristol-Myers Squibb

**Req Number:** R1597920

**Updated:** 2026-01-07 04:21:03.565 UTC

**Location:** Indianapolis-IN

Bristol Myers Squibb is an equal opportunity employer. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, protected veteran status, pregnancy, citizenship, marital status, gender expression, genetic information, political affiliation, or any other characteristic protected by law.