Rafael Madrigal

Rafael Madrigal

Senior Machine Learning Engineer · Research Engineer · Applied AI Researcher

Toronto, ON, Canada

About

Senior ML & Research Engineer with 10 years of experience – last 5 years in the end-to-end translation of SOTA AI Research into production systems within regulated finance. My background combines the experience as an ML Research investigating algorithmic feasibility with an ML Engineer architecting enterprise-scale solutions. This dual perspective enables me to lead the full research-to-deployment lifecycle: from the exploration of Privacy-Enhancing Technologies and Responsible AI for tabular ML to building hardened, modular libraries that scale Multi-Agent Orchestration for millions of users.

Previously managed data science teams at GCash (90M+ users), co-developed LLM Operations and Red Teaming frameworks, and championed Responsible AI practices including 30+ pre-deployment model audits for bias and fairness across banking, finance, and utilities.

I thrive at the intersection of complex systems and cutting-edge research, building the infrastructure that makes foundation models useful at scale.

Experience

Senior Machine Learning Engineer
Manulife Canada 2024 – Present
Senior Machine Learning Researcher
GCash (Globe Fintech Innovations) 2022 – 2024
Data Scientist
Unionbank of the Philippines 2021 – 2022
Senior Strategy Analyst
Manila Water Philippine Ventures 2018 – 2021
MS Data Science, High Distinction
Asian Institute of Management 2021
Grad. Cert. Financial Technology
Seneca College, Toronto 2024
BS Chemical Engineering, Cum Laude
University of the Philippines - Diliman 2015

Tech Stack

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GenAI & NLP

LangChain LangGraph LlamaIndex OpenAI GPT-4o Azure OpenAI Hugging Face Cohere Anthropic Claude

ML & Data

Python SQL PyTorch TensorFlow Scikit-learn Pandas PySpark

Cloud & Tools

Azure AI Search Databricks AWS Tableau Power BI Git