KEAT YANG KOAY

Hands-on Data Science Leader

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Introduction

Keat Yang Koay

I'm a Senior Staff Data Scientist at Shopify with over 10 years of experience driving impact through data science and AI. I excel at both technical leadership—working with LLMs, anomaly detection systems, and predictive models—and people leadership, having managed cross-functional data teams supporting multi-million dollar product initiatives.

I am also passionate about ocean conservation, and hold a PADI Divemaster qualification.

View Resume

Experience

🚀 IC Role

Senior Staff Data Scientist

Commerce-Loop, Shopify
Aug 2023 - Present
  • Agentic AI for Commerce (unannounced feature)
  • Built an LLM pipeline that analyzes merchant theme codes and generates recommendations for conversion improvement and assessment of code changes.
  • Helped with the launch and data-driven iterations of Shopify Bundles, increased variant limits (highly requested merchant feature), Catalogs (now part of Markets) in Merchandising.
  • Led the data team for Custom Storefronts (Hydrogen, Headless, Shopify Web Components) including the onboarding of multi-million dollar GMV merchants who adopted Shopify's "headless" solutions.
  • Significantly improved the time-to-connect of 3rd Party Domains to Shopify, enabling merchants to onboard to Shopify faster through data analytics and A/B testing on enhancements to domain flows.
  • Improved Product Marketing analytics by building a strong analytics pipeline and reporting on Shopify Editions.
  • Automated metric anomaly detection and growth accounting to automate data science tasks, leading to 20% less full time employee time needed to support a domain.
  • Owner of Shopify's data team's pair programming loop.
👥 Management

Senior Manager, Finance Data Decision Science

Shopify
Jul 2017 - Aug 2023
  • Build anomaly detection dashboard with anotation of drivers, enabling cross-company reaction to unexpected trends and revenue opportunities.
  • Revamped affiliates programme to align LTV to CAC
  • Supported price increase and margin optimization on Shopify Payments
  • Automate chargeback work and increase win rate from 3% to 4.2%, reducing the need to hire about 7 Full Time Employees
  • Automated monthly variance to free up accounting's time
  • Investor Relations and Public Relations data support
  • Business insights to executives and the board on big macro impact in the business
  • Automated tax team's audit request workflow
  • Shipped Data Models to support Monthly Recurring Revenue (MRR), Gross Merchandise Volume (GMV) metrics for reporting, merchant-grained profit and loss for forecasting and analysis.
  • Promoted from Individual Contributor, to Manager to eventually Senior Manager
🚀 IC Role

Business Intelligence Analyst

Bell Canada
Prior to 2017
  • Generated $31.9 Million in benefits by driving capital allocation decisions and identifying opportunities to reduce churn, generate sales leads, reduce customer calls and improve customer satisfaction with Bell's quality of service.
  • Led data acquisition and development projects, creating a foundation for generalisable and connectable data sets to improve customer experience, identify problematic business processes and generate sales opportunities.
  • Consulted for analysts from different business units on leveraging data assets to develop business cases, identify campaign targets, define and improve measurements, and to support capital allocation decisions.
  • Conducted analysis with statistics and machine learning to improve business processes and products, and to identify emerging opportunities.
  • Enhanced the process of data acquisition to ensure that the company invests in projects with an acceptable return on investment and to support business analysts and developers with the right documentation.
  • Trained team members on various data preparation and wrangling techniques to extract insights from data of various types, structures and size.
  • Merged various data sources to provide comprehensive insights on business case assessments and opportunity discovery.
  • Awarded Customer Operations Execution Excellence Award for analysis that reduced 15% of calls from new customers through an understanding of call drivers that power self-serve initiatives.

Portfolio

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