Senior AI Scientist for Biomedical Discovery

Pfizer Inc.; Bothell (WA); Hybrid; USD 106,000 - 177,000; Full time

Job summary

Pfizer is seeking a Senior Machine Learning Research Scientist to develop and advance AI methods across biomedical data. You will work with world-class researchers to design rigorous experiments, assess model robustness, and translate research into trusted capabilities deployed across drug discovery and development programs.

You will own model components and benchmarks, contribute to scientific planning, and mentor colleagues while collaborating with engineers, biologists, and domain experts to

Qualifications

• PhD or Master’s with strong research track record in ML/AI or related field.
• Proven ability to develop and evaluate advanced ML methods for high-value biomedical problems.
• Experience translating research into scalable, impactful capabilities.
• Strong Python, research design, and reproducible workflow practices.

Responsibilities

• Develop frontier AI methods for biomedical research across modalities.
• Design and execute rigorous, controlled experiments with clear hypotheses.
• Set evaluation standards at scale with robust datasets and benchmarks.
• Translate models into scientific evidence with domain experts to inform decisions.
• Build reusable foundational components and workflows for cross-disease transfer.
• Raise scientific impact through credible research planning and publications.

Skills

Python

PyTorch

JAX

Model development

Experimental design

Reproducible research

Scientific reasoning

Education

PhD in ML/AI/CS/Statistics/Applied Math/Computational Biology

Master's with 2+ years of relevant experience

Tools

PyTorch

JAX

Job description

Pfizer is seeking a Senior Machine Learning Research Scientist to develop and advance AI methods across biomedical data. You will work with world-class researchers to design rigorous experiments, assess model robustness, and translate research into trusted capabilities deployed across drug discovery and development programs.

You will own model components and benchmarks, contribute to scientific planning, and mentor colleagues while collaborating with engineers, biologists, and domain experts to