Pfizer logoPfizer Externship via Extern

Experienced pro returning to work

Established career background, now reentering the workforce after a break and ready to contribute with focus and reliability.

Work samples

A concise portfolio of past work and outcomes I can draw on as I return to professional life, emphasizing tangible tasks and steady delivery.

  • 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

Established career background, now reentering the workforce after a break and ready to contribute with focus and reliability.

I am gbonju Adesanya, an established professional reentering the workforce after a career break. I bring prior experience and a fresh focus on rebuilding momentum and contributing reliably to projects and teams.

Externships

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

In progress

Experience

SENIOR CLOUD ENGINEER

Sitecore · May 2021 - Present

INFRASTRUCTURE ENGINEER

CaseWare IDEA · Apr 2019 - Apr 2021

IT ENGINEER

Nova Networks · Aug 2018 - Apr 2019

Education

University of Ottawa, Canada

MEng, Electrical and Computer Engineering · Class of 2019

Federal University of Agriculture Abeokuta

BEng (Honours), Electrical and Electronics Engineering · Class of 2015

Skills

Career reentry and workplace readinessTranslating prior experience into current roles

✅ 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 built an AI-powered document intelligence prototype combining OCR, LLMs, and retrieval-augmented generation to process enterprise PDF workflows. Work included researching model behavior, designing ingestion and retrieval pipelines, and producing demonstrable extraction and question-answering artifacts.

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

What I've accomplished

I produced a technical explanation of LLM internals, describing tokenization, vector embeddings, and transformer attention as the mechanism producing generated outputs.

Project breakdown

A compulsory task asked how LLMs work. I described that text was split into tokens, tokens were embedded as vectors, and a transformer model applied attention with the prompt to produce generated outputs.

View all work