Senior AI Architect for Scientific Discovery

Pfizer Inc; United States; Hybrid; USD 106,000 - 177,000; Full time

Job summary

Pfizer Inc. is seeking a Senior AI Research Engineer to build production-grade AI systems that enable scientific discovery. You will own end-to-end subsystems and collaborate with AI scientists, data engineers, and platform teams to deliver robust, scalable solutions in a hybrid work model across multiple U.S.

locations. You will design, deploy, and optimize multimodal AI and agentic architectures, balance tradeoffs, and drive measurable scientific impact while mentoring less-experienced

Qualifications

• PhD or MS/BS with relevant experience in software or ML systems.
• Strong fundamentals in software engineering and ML.
• Experience delivering production-grade AI solutions.

Responsibilities

• Design, develop, and deploy production-grade AI systems.
• Own end-to-end subsystems, platform capabilities, or workflows.
• Collaborate with AI scientists, engineers, and platform teams.
• Improve model evaluation, observability, and reliability.
• Mentor and coach less-experienced engineers.

Skills

Python

PyTorch / JAX

ML System Design

Distributed GPU Training

APIs CI/CD

MLOps

Data Pipelines

Leadership

Education

PhD in CS/CE/Applied Math or related

MS in CS with ML experience

Bachelor's with 4+ years

Tools

Docker

Kubernetes

Cloud platforms

Knowledge Graphs

Job description

Pfizer Inc. is seeking a Senior AI Research Engineer to build production-grade AI systems that enable scientific discovery. You will own end-to-end subsystems and collaborate with AI scientists, data engineers, and platform teams to deliver robust, scalable solutions in a hybrid work model across multiple U.S.

locations. You will design, deploy, and optimize multimodal AI and agentic architectures, balance tradeoffs, and drive measurable scientific impact while mentoring less-experienced