As a result of the combination of the BD Biosciences and Diagnostic Solutions business with Waters Corporation (NYSE: WAT), by applying to this role, you will be applying for a position with Waters. Waters is a global leader in life sciences, dedicated to accelerating the benefits of pioneering science through analytical technologies, informatics, and service. With a focus on regulated, high-volume testing environments, Waters’ innovative portfolio harnesses deep scientific expertise across biology, chemistry, and physics. Waters collaborates with analytical laboratories around the world to advance the release of effective, high-quality medicines, assure the safety of food and water, and drive better patient outcomes by detecting diseases earlier, managing routine infections, and combatting growing antibiotic resistance. Through a shared culture of relentless innovation, Waters’ passionate team of approximately 16,000 colleagues partner with customers to turn scientific challenges into breakthroughs that improve lives worldwide.

We are the people who give possibilities purpose

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.

Job Description

About the role

The Senior Scientist will lead the design and development of innovative reagents and assay solutions for flow cytometry applications, advancing our clinical reagent portfolio. This role is responsible for driving experimental design, developing and executing robust test strategies, and delivering high‑quality data to support reagent systems, assays, workflows, and instruments. The Senior Scientist will analyze and interpret complex datasets, clearly communicate scientific findings to technical teams and at scientific meetings, and contribute to solutions that meet customer needs and regulatory requirements.

Working cross‑functionally with project management, systems engineering, medical affairs, regulatory, quality, marketing, system verification, and clinical trial teams, the Senior Scientist plays a key role in product development from concept through validation. This highly trusted expert applies independent judgment, critical thinking, and deep technical expertise to troubleshoot complex challenges, develop system‑level requirements, and prepare protocols, reports, and technical summaries. As a mentor and scientific leader, they support the growth of junior scientists while fostering innovation, rigor, and excellence across the team.

Main responsibilities will include:

• Leads experimental studies in the laboratory and participates in cross functional discussions to support the programs goals.

• Knowledgeable of customer workflows, scientific and technological advancements.

• Effective communication of technical concepts/issues of project plans, development of test strategies that balance risk and business objectives and support budget planning based on functional project scope.

• Lead analysis and presentations of moderate to high complexity at technical reviews

• May direct and supervise teams or mentor junior team members

• Serve as a technical contributor on cross-functional core teams, supporting decision making across functions, and provides input to senior management on strategic and functional decisions.

About you

• MSc or PhD in Immunology, Cell Biology, Clinical Laboratory Science or related scientific discipline with a minimum of 5 years of relevant industry experience

• Experience in leading studies/ projects in the field of flow cytometry.

• Experience in Flow Cytometry and customer workflows

• Experience researching and applying scientific principles to create new or optimise existing processes with a focus on Immunology/Immuno-oncology and expertise in immunophenotypic analysis of human tissue samples by flow cytometry preferred.

• Execute complex experiments independently, perform analysis & interpret experimental results, to make sound conclusions, and perform statistical analysis

• Apply creative problem-solving skills to novel or complex applications

• Critically evaluate proposed study designs with knowledge of statistics, the calculation of sample sizes and/or estimation of statistical power

• Experience researching and applying scientific principles to create new or optimise existing laboratory procedures

• Experience training bench-level personnel at multiple levels of education and/or expertise

• Strong interpersonal skills with a proven ability to collaborate with others in multi-disciplinary team settings, influence decision making, and build group consensus

• Excellent written and oral communication skills

Click on apply if this sounds like you!

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.

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.

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

Why Join Us?

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 healthcare. At BD, you’ll discover a culture in which you can learn, grow and thrive.

We believe that when people connect in person, we learn faster, collaborate more deeply, and build a stronger culture. Join us and enjoy a culture where face-to-face collaboration supports your learning, your progress, and your success.

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

IRL Limerick - Castletroy

Additional Locations

Work Shift

At BD, we reward, support and develop our associates through our comprehensive Total Rewards program. We are committed to attracting and retaining high quality talent by providing reward and recognition opportunities that promote a performance-based culture, as well as a competitive package of compensation and benefits programs. You can learn more on our career site under "Our Commitment to You."

Our salary or hourly rate ranges reward associates fairly and competitively. We regularly review these ranges and factors, such as location, contribute to the range displayed.

Our pay is based on the role and the necessary skills and education to perform it successfully. The salary or hourly rate offered is determined by the role's specific requirements, including any applicable step rate pay system at the work location. Salary or hourly pay ranges are influenced by labor laws and Collective Bargaining Agreement (CBA) requirements applicable to the work location which may also affect the workplace arrangement of the role.

Salary Range Information

€56,600.00 - €86,300.00 EUR Annual