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Job ID R-536655 Date posted 01/25/2026

Job Description Summary

Senior Scientist II, Reagent and Assay Development

Job Description

We are the makers of possible 

BD is one of the largest global medical technology companies in the world. Advancing the world of health™ is our Purpose, and it’s no small feat. It takes the imagination and passion of all of us—from design and engineering to the manufacturing and marketing of our billions of MedTech products per year—to look at the impossible and find transformative solutions that turn dreams into possibilities. 

We believe that the human element, across our global teams, is what allows us to continually evolve. Join us and discover an environment in which you’ll be supported to learn, grow and become your best self. Become a maker of possible with us. 

Senior Scientist II, New Assay Development

Location San Diego, CA, US

Senior Scientist, Reagent and Assay Development

BDB’s Reagent & Assay Development Group focuses on providing differentiated reagent solutions that uncover truths in biology and medicine.  Teams of hardworking scientists are responsible for initiating and driving the reagent and assay development projects and integrating assays and flow cytometry instruments to create the next generation of research and clinical Flow Cytometry platforms.  Products include cell analyzers, cell sorters, reagents, assays and software.


Primary responsibilities:

  • Plan and participate in the sustaining projects, lead troubleshooting and risk assessment activities.

  • Responsible for study design, experimental execution, data analysis of flow cytometry based assays following appropriate CLSI/ISO standards

  • Independently craft experimental approached to assess viability and feasibility of new reagent and assays

  • Prepare and coordinate the preparation of technical documents and analyses of R&D projects.

  • Maintain strong understanding of state-of-the-art science and technology development in the industry

  • Provide technical expertise, leadership and support for flow cytometry assays and troubleshooting.

  • Effectively coordinate with other functional areas associated with the R&D activities, including Regulatory Affairs, Quality, Marketing, Manufacturing, Medical Affairs, Business Development, etc.

  • Participate in interactions with regulatory agencies.  Provide technical input into safety and regulatory interactions. 

Required Qualifications:

  • Requires a minimum of Master’s degree or a higher degree in biological science and a combination of education and experience in product development

  • Minimum 5 years of demonstrated experience in R&D or clinical/research laboratory environment

  • Demonstrated expertise in sample preparation and experimental design for multi-parameter flow cytometry applications

  • Knowledge of biostatistical methods and data analysis experience is required

  • Proven experience training laboratory personnel and leading projects

  • Extensive hands-on experience operating and troubleshooting flow cytometers

  • Current, in-depth knowledge of flow cytometry, immunology, and cell-based assays

  • Proven experience of working in cross-functional product development teams

  • Excellent communication skills

  • Self-motivated with strong learning agility and sense of urgency

  • Willing to perform hands-on laboratory work

At BD, we prioritize on-site collaboration because we believe it fosters creativity, innovation, and effective problem-solving, which are essential in the fast-paced healthcare industry. For most roles, we require a minimum of 4 days of in-office presence per week to maintain our culture of excellence and ensure smooth operations, while also recognizing the importance of flexibility and work-life balance. Remote or field-based positions will have different workplace arrangements which will be indicated in the job posting.

For certain roles at BD, employment is contingent upon the Company’s receipt of sufficient proof that you are fully vaccinated against COVID-19. In some locations, testing for COVID-19 may be available and/or required. Consistent with BD’s Workplace Accommodations Policy, requests for accommodation will be considered pursuant to applicable law.

Why Join Us?

A career at BD means being part of a team that values your opinions and contributions and that encourages you to bring your authentic self to work. It’s also a place where we help each other be great, we do what’s right, we hold each other accountable, and learn and improve every day.  

To find purpose in the possibilities, we need people who can see the bigger picture, who understand the human story that underpins everything we do. We welcome people with the imagination and drive to help us reinvent the future of health. At BD, you’ll discover a culture in which you can learn, grow, and thrive. And find satisfaction in doing your part to make the world a better place.  

To learn more about BD visit https://bd.com/careers

Becton, Dickinson, and Company is an Equal Opportunity Employer. We evaluate applicants without regard to race, color, religion, age, sex, creed, national origin, ancestry, citizenship status, marital or domestic or civil union status, familial status, affectional or sexual orientation, gender identity or expression, genetics, disability, military eligibility or veteran status, and other legally-protected characteristics.

Required Skills

Optional Skills

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Primary Work Location

USA CA - San Diego (BDB)

Additional Locations

Work Shift

At BD, we are strongly committed to investing in our associates—their well-being and development, and in providing rewards and recognition opportunities that promote a performance-based culture. We demonstrate this commitment by offering a valuable, competitive package of compensation and benefits programs which you can learn more about on our Careers Site under Our Commitment to You.

Salary or hourly rate ranges have been implemented to reward associates fairly and competitively, as well as to support recognition of associates’ progress, ranging from entry level to experts in their field, and talent mobility. There are many factors, such as location, that contribute to the range displayed. The salary or hourly rate offered to a successful candidate is based on experience, education, skills, and any step rate pay system of the actual work location, as applicable to the role or position. Salary or hourly pay ranges may vary for Field-based and Remote roles.

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