Innovation, Data & Analytics Team, Senior Data Scientist (AI Lead)

Pfizer; Montreal (administrative region); Hybrid; CAD 120,000 - 165,000; Full time

Job summary

Pfizer seeks a senior data science leader to own the analytical methodology and evaluation rigor behind AI-based workflows. You will direct model selection, segmentation science, and agent decision logic in partnership with Engineering and Governance.

You will partner with the AI/ML Engineer to translate methodology into production-grade agents and pipelines, and mentor junior data scientists and data engineers. This role is hybrid with multiple U.S. and Montreal locations.

Qualifications

• Advanced degree in data science or related field.
• Experience in healthcare/pharma data (claims, EHR, HEDIS/OMOP) preferred.
• Hands-on experience evaluating LLMs and agentic systems.

Responsibilities

• Own the analytical methodology and evaluation frameworks for AI-based workflows.
• Design segmentation methodology using real world data sources.
• Direct analytical logic behind agentic workflows and production pipelines.

Skills

Leadership & mentorship

Cross-functional collaboration

Clinical data experience

LLMs & agent systems

Scientific communication

Education

Advanced degree in Data Science

Degree in Statistics or Biostatistics

Job description

Own the analytical methodology and evaluation rigor behind the Innovation, Data & Analytics team's AI-based workflows, directing model selection, cohort/segmentation science, and agent decision logic in partnership with Engineering and Governance.

Role Responsibilities

Methodology & Analytical Direction

• Own model selection and evaluation frameworks for AI-based workflows
• Design cohort and customer/HCP segmentation methodology using real world data sources
• Direct the analytical logic and decisioning behind agentic workflows, ensuring methodological rigor and defensibility
• Partner with the AI/ML Engineer to translate methodology into production-grade agents and pipelines

Strategic Support & Collaboration

• Support strategic and tactical planning with regard to medical/analytical priorities
• Collaborate with the Data Architect/Data Analyst to ensure analytical outputs align with data model and quality standards
• Communicate generated insights and analytical trade-offs clearly to business and technical stakeholders
• Proactively identify new data inputs, analytical techniques, and evaluation approaches to improve workflow quality and adoption
• Provide mentorship and coaching to junior data scientists and data engineering colleagues

Basic Qualifications

Candidate demonstrates a breadth of diverse leadership experiences and capabilities including: the ability to influence and collaborate with peers, develop and coach others, and oversee the analytical direction of AI-based workflows to achieve meaningful outcomes and create business impact.

• Advanced degree in Data Science, Statistics, Biostatistics, Computer Science, Clinical Informatics, or similar
• Experience (8+ years with Bachelor's; 7+ with Master's; 5+ with PhD) in data science, notably in the healthcare sector
• Healthcare/pharma data experience, including claims, EHR, and HEDIS/OMOP frameworks
• Hands‑on experience evaluating and experimenting with LLMs and agentic systems
• Demonstrated ability to independently lead projects and support the professional growth of colleagues
• Demonstrated effectiveness working in a cross‑functional business environment
• Proven influencing skills and strong interpersonal skills to quickly build rapport and credibility with Pfizer leaders and key external stakeholders
• Effective English verbal and written communication with flexibility to be clear, consistent, compliant, and appropriate for a variety of settings including scientific/technical, promotional, patient/consumer, regulatory, and media
• In‑depth understanding of the business of pharmaceutical medicine including clinical trial design, GCP and data interpretation, drug development, regulatory and promotional rules/guidance, legal and compliance, and issue management

Technical

• Anticipates Customer and Market Needs – Knows the industry; knowledgeable in current and possible future trends; is dedicated to meeting the expectations and requirements of internal and external customers; always focused on patient safety first; establishes and maintains effective relationships with customers and gains their trust and respect.
• Acts Decisively – Makes timely and effective decisions by applying business and analytical acumen. Acts with urgency and removes barriers that hinder productivity.
• Builds Change‑Agile Organizations – Develops teams that are facile at initiating and responding to change. Aligns teams and processes to support sustainable change.
• Strategic and Innovative Thinking – Demonstrates insightful thinking by developing creative approaches to analytical models and strategies and creates an environment to encourage others to do the same.
• Grows Leaders – Actively coaches and develops talent. Provides opportunities and experiences to develop skills, competencies, and business knowledge.
• Is a role model of Pfizer's values and behaviors.

Demonstrate ability to

• Drive transformational change
• Lead teams and engage diverse stakeholders
• Understand the applications of technology to the Life Science sector

Other Job Details

• Last Date to Apply for Job: September 23rd, 2026.
• Locations: NYHQ or PA-Collegeville or MA-Cambridge or CT-Groton or Europe any Pfizer site or QC - Montreal
• NOT Eligible for Relocation Package
• Position is hybrid and will require to work 2 to 3 days per week on site

Sunshine Act

Pfizer reports payments and other transfers of value to health care providers as required by federal and state transparency laws and implementing regulations. These laws and regulations require Pfizer to provide government agencies with information such as a health care provider’s name, address and the type of payments or other value received, generally for public disclosure. Subject to further legal review and statutory or regulatory clarification, which Pfizer intends to pursue, reimbursement of recruiting expenses for licensed physicians may constitute a reportable transfer of value under the federal transparency law commonly known as the Sunshine Act. Therefore, if you are a licensed physician who incurs recruiting expenses as a result of interviewing with Pfizer that we pay or reimburse, your name, address and the amount of payments made currently will be reported to the government. If you have questions regarding this matter, please do not hesitate to contact your Talent Acquisition representative.

EEO & Employment Eligibility

Pfizer is committed to equal opportunity in the terms and conditions of employment for all employees and job applicants without regard to race, color, religion, sex, sexual orientation, age, gender identity or gender expression, national origin, disability or veteran status. Pfizer also complies with all applicable national, state and local laws governing nondiscrimination in employment as well as work authorization and employment eligibility verification requirements of the Immigration and Nationality Act and IRCA. Pfizer is an E‑Verify employer. This position requires permanent work authorization in the United States.