Principal AI Build Engineer

Pfizer; New York (NY); Hybrid; USD 177,000 - 294,000; Full time

Benefits offered by this job

401(k) with Pfizer Matching

Paid vacation, holidays, and personal/

Parental and medical leave

Health benefits

Job summary

Pfizer is seeking an accomplished hands‑on software engineer to lead AI-augmented development for the Medical Affairs AI Acceleration portfolio. You will take product requirements from prototype to production, shipping scalable AI systems and maintaining rigorous verification of AI-generated code.

The role emphasizes cross-functional collaboration with Solution Architecture, Data Integration, Product, and UX to deliver production-grade solutions.

Qualifications

• Bachelor's degree in Computer Science, Engineering, or related field.
• 8+ years of hands-on software engineering experience.
• Experience building and shipping production software across the full stack.
• Experience integrating AI/ML or LLM-based capabilities into production systems.
• Experience taking prototypes/MVPs through to production-grade systems.
• Experience with modern cloud architecture (AWS or Azure), API-first design, and CI/CD.
• Experience with Agile/Scrum delivery frameworks.
• Strong verification and code-review discipline, including AI-generated code review.
• Experience designing and optimizing LLM/agent prompts for production efficiency.

Responsibilities

• Build, test, and ship production-grade software across the full stack.
• Integrate Agentic AI, LLM-based capabilities, and RAG pipelines into products.
• Collaborate with Data Integration Engineer to ensure reliable data pipelines.
• Partner with Solution Architecture and Product/UX to translate requirements into working software.
• Maintain engineering documentation, code reviews, and knowledge sharing.

Skills

Full-stack software engineering

AI/ML integration

Cloud (AWS/Azure)

CI/CD

Agile/Scrum

LLM prompts/agents

Technical writing

Code review/verification

Education

Bachelor's degree in CS/Engineering

Tools

Veeva CRM

Salesforce Life Sciences Cloud

Salesforce Marketing Cloud

Job description

Pfizer is seeking an accomplished hands‑on software engineer to lead AI-augmented development for the Medical Affairs AI Acceleration portfolio. You will take product requirements from prototype to production, shipping scalable AI systems and maintaining rigorous verification of AI-generated code.

The role emphasizes cross-functional collaboration with Solution Architecture, Data Integration, Product, and UX to deliver production-grade solutions.