Winston
Bartle.

I'm an Senior Consultant in Financial Risk Management at Ernst & Young (EY) Hong Kong, where I apply cutting-edge artificial intelligence and machine learning algorithms to help financial institutions navigate an increasingly complex regulatory and risk landscape.

Malaysian at heart, data-driven by passion—leveraging AI, econometrics, and advanced analytics to reshape financial risk and decision-making in a fast-evolving world.

Alumnus of MCKL, where I achieved straight A* in CIE A-Levels (Further Mathematics, Mathematics, Physics, Chemistry). Initially gearing up for mechanical engineering, I pivoted toward data science and econometrics, drawn by their power to uncover insights from complex systems. This foundation led to a BSc in Econometrics and Data Science at the University of Amsterdam, followed by an MSc in Financial Technology from HKUST.

At EY, I drive innovation in financial risk management, specializing in behavioral models for interest rate risk in the banking book (IRRBB), early redemption risks, and predictive accuracy.

I harness Python automation, R, machine learning, and Retrieval-Augmented Generation (RAG) with large language models to streamline workflows, boost model performance, and deliver explainable, regulatory-compliant solutions.

Outside of work, I have a genuine passion for aviation — commercial airliners, airport operations, and the elegant complexity of flight networks and logistics. It’s a hobby that constantly reminds me of the beauty in high-dimensional systems and precise optimization.

Open to conversations on AI in finance, behavioral modeling, LLMs/RAG in risk, econometrics, or just sharing a solid data pun. Let’s connect!