John Grecsek

About John Grecsek

Specialties: Revenue Forecasting, Finance Process Re-engineering, Pharmaceuticals Finance and Strategic Analysis

Experience

1. Director of Epi - Forecasting, Center of Excellence

   辉瑞

   May 2023 — Present · New York, NY, US

   Led global forecasting modernization, deploying enterprise platforms across 60+ countries and 1,300+ users, eliminating hours of manual effort through automation and streamlined insight generation.• Designed and scaled AI-assisted and agentic forecasting capabilities (Clairos), enabling scenario planning, guided decision workflows, and faster strategic response across in-line, pipeline, and long-range forecasting.• Operationalized conversational scenario generation and insight drafting, standardizing how teams create assumptions, run sensitivities, and communicate outcomes across brands and markets.• Built chat-based forecasting workflows that enable stakeholders to generate scenarios, test assumptions, and surface insights on demand, shortening scenario cycles from days to hours.• Integrated epidemiology, patient funnel logic, and commercial data layers to improve forecast consistency, signal quality, and decision confidence at enterprise scale.• Partnered cross-functionally with Commercial, Finance, Supply Chain, Data Science, and IT to position forecasting as an AI-enabled decision system, not just a modeling exercise.• Established enterprise governance, enablement, and standards, including training programs, dashboards, and automated pipelines, increasing analytical throughput and adoption without incremental headcount.• Played a pivotal role in shaping Pfizer\'s forecasting strategy by standardizing metrics and integrating forecasts with performance reporting, leading to enhanced decision-making.• Led the design and prototyping of a data layer to modernize forecasting, enabling automated pipelines for priority brands and enhancing scalability across the Forecasting CoE.• Developed a standardized claims data layer to improve data quality and synchronization for forecasting and performance reporting.

Education

• The College of New Jersey

  Bachelor of Arts - BA, Communications

  1986 — 1991

• Tulane University - A.B. Freeman School of Business

  MBA, Finance

  1999 — 2001

• Stevens Institute of Technology

  AI in Business, Graduate Certificate, Artificial Intelligence

Skills

• Executive Management
• Revenue Forecasting
• Strategic Financial Planning
• Pharmaceutical Industry
• Business Process Improvement
• Cross-Functional Team Leadership
• Portfolio Management
• Competitive Analysis
• Management
• Budgets
• Finance
• Strategy
• Budgeting
• Financial Analysis
• Product Management
• Risk Management
• Financial Planning
• Forecasting
• Analytics
• Strategic Planning
• P&L Management
• Process Improvement
• Analysis
• Mergers & Acquisitions