Pfizer logoCurrently an Extern @Pfizer·🟢 Open to work
Harleen Kaur portrait

Aspiring Systems Integration Technician

I’m a passionate IT student on a journey to develop my technical skills and gain real-world experience through externships, hands-on projects, and certifications.

Work samples

Explore my projects and experiences that showcase my growing skills in information technology and database architecture.

  • Pfizer Advanced: AI-Powered Document Insights & Data Extraction Externship
    Pfizer Advanced: AI-Powered Document Insights & Data Extraction Externship
    Pfizer logo

    Pfizer · ✅ Verified by Extern · ⏱️ In progress

    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.

    AI & MLPythonDocument IntelligencePresentation Skills

About me

I’m a passionate IT student on a journey to develop my technical skills and gain real-world experience through externships, hands-on projects, and certifications.

Through projects and externships, I’ve learned that technology is about connecting systems, people, devices, and data to create solutions that are reliable, secure, and safe.

Externships

Pfizer Advanced: AI-Powered Document Insights & Data Extraction Externship

Pfizer

Experience

Peer Mentor

Sinclair Community College · Feb 2025 - May 2028

Education

Sinclair Community College

Bachelor of Applied Science Internet of Things · Class of 2028

Skills

SQLDatabase ArchitectureNetworkingPythonData VisualizationData AnalysisSystem DesignAPI Integration
Back to works

Smart Airport Network & Operations Monitoring System

Network SecurityIoTNetworkingSystem DesignPythonSQLCloud ComputingData AnalyticsData Visualization

Overview

Smart Airport Network & Operations Monitoring System
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✅ Verified by Extern · ⏱️ In progress

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.

AI & MLPythonDocument IntelligencePresentation Skills

Overview

The externship prototyped AI approaches for extracting and interpreting pharmaceutical documents. The work summarized how large language models learn from corpora, how inputs are tokenized, how transformer attention models context, and how pretraining plus human-feedback fine-tuning alters model behavior.

Pfizer Advanced: AI-Powered Document Insights & Data Extraction Externship

What I've accomplished

I produced a technical summary describing LLM pretraining on large corpora, tokenization, transformer attention, and human-feedback fine-tuning as applied to pharmaceutical document processing.

Project breakdown

The submission summarized how LLMs learned language from large text corpora, tokenized inputs, used transformer attention to model context, and were pretrained then fine-tuned with human feedback to improve accuracy and safety.

During the image-preprocessing task I converted a color scan to grayscale, removed noise with denoising and Gaussian blur, enhanced contrast, and applied thresholding, producing a cleaner black-and-white document for OCR.

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