Innovation, Data & Analytics Team, AI/ML Engineer (Agentic Systems)

Pfizer • Montreal, QC

2d • $162,900 - $271,500 • Hybrid

About The Position

Own the orchestration layer and agent architecture behind the Innovation, Data & Analytics team's AI-based workflows, building and hardening agentic systems that translate analytical methodology into reliable production tools.

Requirements

• Candidate demonstrates strong technical execution and the ability to operate independently in a fast-paced, regulated environment, partnering effectively across data science, data engineering, and governance functions.
• Degree in Computer Science, Software Engineering, Machine Learning, or a related field
• Experience (8+ years with Bachelor's; 7+ years with Master's) in software or ML engineering, notably in the healthcare/pharma sector
• Experience with agentic frameworks (e.g., LangGraph, Pydantic AI, or similar)
• Strong software engineering background, including production system design and testing
• Experience integrating LLM APIs and exposure to MLOps practices (evaluation, monitoring, cost control)
• Effective English verbal and written communication with flexibility to be clear, consistent, compliant, and appropriate for a variety of settings including scientific/technical, regulatory, and business audiences
• Anticipates Customer and Market Needs – Knows the industry and technology landscape; is dedicated to meeting the expectations of internal and external customers; always focused on patient safety first.
• Acts Decisively – Makes timely and effective engineering decisions; acts with urgency and removes barriers that hinder productivity.
• Builds Change-Agile Systems – Designs agentic systems that are flexible and adaptive to evolving business needs.
• Strategic and Innovative Thinking – Demonstrates insightful thinking by developing creative approaches to agentic system design.
• Is a role model of Pfizer's values and behaviors.
• Demonstrate ability to drive transformational change
• Demonstrate ability to engage diverse technical and business stakeholders
• Demonstrate ability to understand the applications of technology to the Life Science sector
• Permanent work authorization in the United States.

Nice To Haves

• Healthcare data experience preferred

Responsibilities

• Own orchestration frameworks and agent architecture for AI-based workflows
• Build and harden agentic workflows for production use
• Design prompt architecture and tool/API integrations across agentic systems
• Translate the Senior Data Scientist's methodology and evaluation criteria into deployed, production-grade agents
• Partner with the Data Engineer to ensure agents consume clean, well-structured data
• Partner with the Senior Data Analyst to ensure agentic workflows meet governance, audit, and compliance requirements
• Implement monitoring, evaluation, and cost controls for LLM-based systems in production
• Document agent architecture, prompt design, and tool integrations to support governance and audit needs
• Proactively identify opportunities to improve workflow reliability, latency, and cost

Benefits

• 401(k) plan with Pfizer Matching Contributions
• Additional Pfizer Retirement Savings Contribution
• Paid vacation
• Holiday and personal days
• Paid caregiver/parental and medical leave
• Health benefits to include medical, prescription drug, dental and vision coverage

What This Job Offers

• Job Type: Full-time
• Career Level: Senior