Pfizer logoCurrently an Extern @Pfizer·🟢 Open to work
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Data-Driven Aspiring Product Manager

I harness data to optimize workforce strategies and enhance organizational efficiency, paving my way into a competitive career.

Work samples

Dive into my work showcasing innovative data strategies and analytics, aimed at solving real-world workforce challenges.

  • Amazon Operational Strategy & People Analytics Externship
    Amazon Operational Strategy & People Analytics Externship
    Amazon logo

    Amazon · Apr 2026 · ✅ Verified by Extern

    Amazon Operational Strategy & People Analytics Externship

    Imagine shaping how AMAZON — yes, THE Amazon — welcomes and keeps its workforce. Every year, Amazon loses billions because new hires leave before Day 90.You’re going to fix that. In this externship, you’ll web scrape real-world employee reviews from across the web, extract actionable insights, and d

    OperationsStrategyAI & MLPythonData Analysis
  • Extern - Pfizer AI Document Intelligence

    Extern - Pfizer AI Document Intelligence

    Cut manual document review time on regulatory PDFs by building a RAG pipeline that parses text-based and scanned pharmaceutical documents (PyMuPDF + OCR) and surfaces expiration dates and test specs through a chat interface. Improved retrieval accuracy on technical QA documents by implementing hybri

    PyMuPDFOCRBM25HuggingFace vector embeddings

About me

I harness data to optimize workforce strategies and enhance organizational efficiency, paving my way into a competitive career.

I'm Jacky Zheng, a Data Savvy College Assistant passionate about leveraging data to enhance workforce strategies. With a Bachelor's in Business Management and experience at the United Nations and Amazon, I'm committed to shaping effective, data-driven solutions.

Externships

Pfizer Advanced AI-Powered Document Intelligence Externship

Pfizer

Experience

Strategic Workforce Planning Intern - Analyst/Product Manager

United Nations Headquarters · Nov 2024 - May 2025

Data Savvy College Assistant

Guttman Community College · April 2026 - Current

Education

Stony Brook University

Bachelor's in Science Business Management (Specialization: Operations Management), China Studies Minor

Korea University

Study Abroad

Skills

SQLPythonPower BIExcelStatistical AnalysisSharePoint OnlineRAG PipelinesVector & Hybrid SearchHuggingFace EmbeddingsClaude CodeCursorOpenAI APIEmployee Lifecycle TransactionsHeadcount & Attrition ReportingOnboarding/Offboarding

âś… Verified by Extern

Amazon Operational Strategy & People Analytics Externship

Imagine shaping how AMAZON — yes, THE Amazon — welcomes and keeps its workforce. Every year, Amazon loses billions because new hires leave before Day 90.You’re going to fix that. In this externship, you’ll web scrape real-world employee reviews from across the web, extract actionable insights, and d

OperationsStrategyAI & MLPythonData Analysis

Overview

Amazon Operational Strategy & People Analytics Externship

What I've accomplished

Project breakdown

View all works

Extern - Pfizer AI Document Intelligence

Cut manual document review time on regulatory PDFs by building a RAG pipeline that parses text-based and scanned pharmaceutical documents (PyMuPDF + OCR) and surfaces expiration dates and test specs through a chat interface. Improved retrieval accuracy on technical QA documents by implementing hybri

PyMuPDFOCRBM25HuggingFace vector embeddings
View all works

âś… Verified by Extern

Pfizer Advanced AI-Powered Document Intelligence Externship

Prototype AI-powered document intelligence with Pfizer—using OCR, open-source LLMs, and RAG to automate real enterprise PDF workflows. Build a chatbot built with Gradio to allow users to query expiration dates and product quality metrics from large sets of uploaded documents.

AI & MLPythonDocument IntelligencePresentation SkillsPyMuPDFComputer VisionDesign Systems

Overview

Prototype AI-powered document intelligence with Pfizer—using OCR, open-source LLMs, and RAG to automate real enterprise PDF workflows. Build a chatbot built with Gradio to allow users to query expiration dates and product quality metrics from large sets of uploaded documents.

Pfizer Advanced AI-Powered Document Intelligence Externship

What I've accomplished

â—Ź Built AI pipelines to process pharmaceutical vendor files using OCR (Tesseract, PaddleOCR) and RAG for data extraction and classification. â—Ź Developed a RAG-based document retrieval system with LlamaIndex, optimized with chunk tuning and open-source LLMs(Mistral, Phi-2). â—Ź Conducted end-to-end evaluation of the document intelligence system: benchmarking OCR accuracy, RAG retrieval quality, and routing performance. â—Ź Delivered a technical report outlining model trade-offs, optimization strategies, final deployment recommendations, and built a UI for demo purposes.

Project breakdown

View all works