Raymond Lo
Senior Software Engineer at eBay
Old Toronto, Ontario, Canada
Summary
👤
Senior🎓
Top SchoolRaymond Lo is a senior full-stack engineer with 7 years of experience building high-throughput, user-focused e-commerce systems and currently contributing at eBay. He excels in React.js and TypeScript on the front end and has solid back-end experience with .NET, Node.js, GraphQL and databases, having refactored critical REST APIs and handled payment reliability at scale. His work on checkout systems has directly improved conversion rates and supported thousands of transactions per minute while also advancing accessibility to WCAG 2.1 standards. Raymond mentors junior engineers, drives performance optimizations (reducing page load times by ~25% at enterprise clients), and favors pragmatic, resilient designs that balance user experience with operational robustness. With a nontraditional background in biology, he brings analytical curiosity and cross-disciplinary thinking to engineering problems.
7 years of coding experience
5 years of employment as a software developer
Bachelor of Science - BS, Biology, General, Bachelor of Science - BS, Biology, General at Ontario Tech University
Github Skills (33)
socket-io10
javascript10
react-components10
react-native10
web-application10
electron10
python10
fig10
autocomplete10
typescript10
websocket10
material-ui10
apache10
calendly10
material-design10
Programming languages (6)
Github contributions (5)
rayy-lo/portfolio-v2
Dec 2020 - May 2022
new portfolio + design built with gatsby
Contributions:14 PRs, 23 pushes, 13 branches in 1 year 5 months
gatsbydesign-portfolioreactbuilt-with-gatsbygatsbyjs
rayy-lo/kaworyuenbbq
Sep 2018 - May 2020
Static website for a bbq restaurant using only HTML, CSS and JavaScript
Contributions:2 PRs, 22 pushes, 2 branches in 1 year 7 months
cssjavascripthtml-onlybbqhtml-css
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