Guy Langford-lee
Staff Software Engineer at GrowthBook (YC W22)
San Francisco, California, United States
Summary
🤩
Rockstar🎓
Top SchoolGuy Langford-Lee is a Staff Software Engineer with 11 years of full-stack experience, currently based in San Francisco and contributing to GrowthBook (YC W22) after a multi-year engineering tenure at Quizlet. He combines hands-on front-end work—improving UI/UX and fixing complex display and date bugs—with back-end configuration and feature-flagging expertise, evidenced by contributions to the open-source GrowthBook A/B testing platform. Comfortable leading teams and shipping product-focused solutions, he has held both engineering manager and senior engineer roles and brings practical experience from startups to scale-stage products. A New Zealand native with a cheerful, strong work ethic, he pairs technical depth with real-world interests like motorcycle racing and wakeboarding that keep his problem-solving energetic and grounded.
11 years of coding experience
9 years of employment as a software developer
bachelor of computer information sciences, software development, bachelor of computer information sciences, software development at Auckland University of Technology
English
Github Skills (12)
flags10
javascript10
feature-flags10
front-end-development10
react10
feature-toggle10
typescript-types9
typescript9
typescripts9
webhooks8
back-end-development7
nodejs7
Programming languages (5)
Github contributions (5)
growthbook/growthbook
Oct 2023 - Mar 2025
Open Source Feature Flagging and A/B Testing Platform
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:147 reviews, 98 PRs, 262 pushes in 1 year 5 months
Contributions summary:Guy primarily contributed to the front-end of the GrowthBook platform, focusing on UI enhancements and bug fixes. Their work included implementing features like tag display with ellipsis and wrapping, and fixing date-related display issues in graphs. They also added support for cache control through environment variables and made adjustments to settings and webhook implementations. The contributions span multiple front-end components and back-end configuration, suggesting a full-stack development role within the project.
operationdcosstorekitremote-configrollout
gazzdingo/walls.cool
Sep 2016 - Sep 2024
Algorithmic Art Generator
Contributions:16 PRs, 43 pushes, 18 branches in 8 years 1 month
art-generatorartalgorithmicalgorithmic-art
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