Justin Fan
Senior Software Engineer at DoorDash
San Francisco, California, United States
Summary
👤
Senior🎓
Top SchoolJustin Fan is a Senior Software Engineer based in San Francisco with nine years of experience building full-stack systems and platform tooling. He currently focuses on Server Driven UI at DoorDash after leading engineering efforts at Ansa, where he helped shape merchant-facing dashboards and developer SDKs. Comfortable across Go, TypeScript, React/Next.js, and scalable backend systems, he has been a core maintainer of Blend’s Go SDK and built high-throughput services at FlightAware. Justin also spent time as an indie hacker and solo founder, shipping product-focused projects end-to-end, which informs his pragmatic product sensibility. He blends hands-on implementation with technical leadership, often owning both architecture and day-to-day delivery. Expect a developer who moves fluidly between frontend UX, backend services, and developer tooling to accelerate teams.
9 years of coding experience
7 years of employment as a software developer
Bachelor’s Degree Computer Science, Bachelor’s Degree Computer Science at Rice University
English, Chinese, Chinese
Github Skills (70)
browser8
react8
async7
rest7
fetch7
nextjs7
combobox7
redux7
rest-api6
mobx-state-tree6
compiler6
js6
observable6
react-component6
mongojs6
Programming languages (10)
Github contributions (5)
Justinfan827/ai-fit
Nov 2024 - Jan 2026
Ai generated workout plans
Contributions:5 PRs, 72 pushes, 5 branches in 1 year 1 month
Justinfan827/CodePlayground
Jun 2017 - May 2020
Playground of code
Contributions:3 PRs, 32 pushes, 9 branches in 3 years
playground
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