Pfizer Advanced: AI-Powered Document Insights & Data Extraction Externship
Prototype AI-powered document intelligence with Pfizer—using OCR, LLMs, and RAG to automate real enterprise PDF workflows and build a standout portfolio project.
/* Transforming data into insights with AI at Pfizer. I'm a passionate graduate student ready to innovate. */
🟢 Open to work
Discover my work at the intersection of AI and data science, including insights from my externship at Pfizer.
Prototype AI-powered document intelligence with Pfizer—using OCR, LLMs, and RAG to automate real enterprise PDF workflows and build a standout portfolio project.
Built full-stack React + Django REST app with multi-filter search over 500+ recipes; implemented reverse ingredient search using spaCy NLP and PostgreSQL full-text; designed UI with Bootstrap + React hooks; deployed via Docker + Azure
Developed scikit-learn pipeline with Pandas/NumPy to classify 7 disorders across 12K records; engineered 15+ features using SHAP and PCA; reduced model size by 60%; deployed via Flask API on Docker for telehealth integration
Engineered real-time voice assistant using OpenAI GPT-4, Whisper STT, and ElevenLabs TTS; built FastAPI backend with contextual memory module retaining session history; designed modular plugin system with custom voice profiles and emotion-aware tone modulation
Transforming data into insights with AI at Pfizer. I'm a passionate graduate student ready to innovate.
I'm a graduate student at California State University Northridge, majoring in Computer Science. Currently, I’m enhancing my skills through an externship with Pfizer, where I'm focusing on AI-powered document insights and data extraction.
Externships
Pfizer Advanced: AI-Powered Document Insights & Data Extraction Externship
Pfizer
Experience
AI Automation and Data Intelligence Extern
Extern Inc. · October 2025 – Present
QA Automation Intern
5HeadGames · Jan. 2025 – Aug. 2025
Education
California State University, Northridge
Bachelor of Science in Computer Science · Class of 2024
Meta Back-End Developer Certificate
In Progress
Skills
Prototype AI-powered document intelligence with Pfizer—using OCR, LLMs, and RAG to automate real enterprise PDF workflows and build a standout portfolio project.
During my externship with Pfizer, I developed an AI-powered document intelligence prototype. This project utilized Optical Character Recognition (OCR), Large Language Models (LLMs), and Retrieval-Augmented Generation (RAG) to automate PDF workflows, enhancing operational efficiency within the pharmaceutical industry.
In the course of this externship, I completed several projects that expanded my expertise in AI, Python, and document processing. Each project contributed to a comprehensive understanding of how to leverage AI for improved efficiency in managing pharmaceutical documentation.
Project 1: How AI Reads Pharmaceutical Documents
I explored Machine Learning, Deep Learning, LLMs, and NLP to understand how AI interprets pharmaceutical documents. By analyzing a real pharmaceutical documentation file, I gained insights into how AI models handle both structured and unstructured data, laying a solid foundation for improving
Project 3: Data Extraction from Documents Using Python
I converted digital PDFs into machine-readable formats using Python, employing tools like PyMuPDF and pdfplumber. By applying field heuristics, I successfully extracted key data fields, which are crucial for Pfizer's compliance workflow, including document dates and types.
Project 5: Introduction to Retrieval-Augmented Generation (RAG)
AI models can process vast amounts of text, but finding the right information quickly is a challenge. In this project, you’ll learn how to build a Retrieval-Augmented Generation (RAG) pipeline using LlamaIndex to help AI retrieve relevant data from large document sets.
Project 2: Learn to Work with Python for AI-Powered Document Processing
I utilized Python for data processing and cleaning of pharmaceutical documents, preparing them for AI automation. Through hands-on experience with Google Colab, I learned to standardize information and enhance OCR accuracy through effective image processing techniques.
Project 4: Advanced OCR Comparison and Layout-Aware Extraction
I conducted a comparative analysis of three OCR engines—Tesseract, PaddleOCR, and EasyOCR—on scanned pharmaceutical supplier documentation. I evaluated their effectiveness in text extraction and formatting preservation, ultimately recommending the best tool for real-world automation.
Built full-stack React + Django REST app with multi-filter search over 500+ recipes; implemented reverse ingredient search using spaCy NLP and PostgreSQL full-text; designed UI with Bootstrap + React hooks; deployed via Docker + Azure
Built full-stack React + Django REST app with multi-filter search over 500+ recipes; implemented reverse ingredient search using spaCy NLP and PostgreSQL full-text; designed UI with Bootstrap + React hooks; deployed via Docker + Azure
Developed scikit-learn pipeline with Pandas/NumPy to classify 7 disorders across 12K records; engineered 15+ features using SHAP and PCA; reduced model size by 60%; deployed via Flask API on Docker for telehealth integration
Developed scikit-learn pipeline with Pandas/NumPy to classify 7 disorders across 12K records; engineered 15+ features using SHAP and PCA; reduced model size by 60%; deployed via Flask API on Docker for telehealth integration
Engineered real-time voice assistant using OpenAI GPT-4, Whisper STT, and ElevenLabs TTS; built FastAPI backend with contextual memory module retaining session history; designed modular plugin system with custom voice profiles and emotion-aware tone modulation
Engineered real-time voice assistant using OpenAI GPT-4, Whisper STT, and ElevenLabs TTS; built FastAPI backend with contextual memory module retaining session history; designed modular plugin system with custom voice profiles and emotion-aware tone modulation