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Hi, I’m Li Ou, a full-stack developer based in San Francisco. I specialize in building responsive, accessible UIs and robust REST APIs using React/Next.js, TypeScript, Express, Prisma, and PostgreSQL. I enjoy turning Figma designs into polished products and continuously improving performance and developer workflows. I thrive in cross-functional teams, value clean code and thoughtful UX, and love mentoring others to grow their skills. When I’m not coding, I enjoy exploring new tech, contributing to CI/CD improvements, and ensuring secure, scalable deployments.…Hi, I’m Li Ou, a full-stack developer based in San Francisco. I specialize in building responsive, accessible UIs and robust REST APIs using React/Next.js, TypeScript, Express, Prisma, and PostgreSQL. I enjoy turning Figma designs into polished products and continuously improving performance and developer workflows. I thrive in cross-functional teams, value clean code and thoughtful UX, and love mentoring others to grow their skills. When I’m not coding, I enjoy exploring new tech, contributing to CI/CD improvements, and ensuring secure, scalable deployments.

Li Ou

Full Stack Developer, Web Developer, Back-End Developer, +2

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Hi, I’m Li Ou, a full-stack developer based in San Francisco. I specialize in building responsive, accessible UIs and robust REST APIs using React/Next.js, TypeScript, Express, Prisma, and PostgreSQL. I enjoy turning Figma designs into polished products and continuously improving performance and developer workflows. I thrive in cross-functional teams, value clean code and thoughtful UX, and love mentoring others to grow their skills. When I’m not coding, I enjoy exploring new tech, contributing to CI/CD improvements, and ensuring secure, scalable deployments.…Hi, I’m Li Ou, a full-stack developer based in San Francisco. I specialize in building responsive, accessible UIs and robust REST APIs using React/Next.js, TypeScript, Express, Prisma, and PostgreSQL. I enjoy turning Figma designs into polished products and continuously improving performance and developer workflows. I thrive in cross-functional teams, value clean code and thoughtful UX, and love mentoring others to grow their skills. When I’m not coding, I enjoy exploring new tech, contributing to CI/CD improvements, and ensuring secure, scalable deployments.

Available to hire

Hi, I’m Li Ou, a full-stack developer based in San Francisco. I specialize in building responsive, accessible UIs and robust REST APIs using React/Next.js, TypeScript, Express, Prisma, and PostgreSQL. I enjoy turning Figma designs into polished products and continuously improving performance and developer workflows.

I thrive in cross-functional teams, value clean code and thoughtful UX, and love mentoring others to grow their skills. When I’m not coding, I enjoy exploring new tech, contributing to CI/CD improvements, and ensuring secure, scalable deployments.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

English

Fluent

Work Experience

Full Stack Developer at Squared

July 1, 2024 - Present

Delivered UI and API features across ~40 sprints in a cross-functional team, owning implementation from Figma review through release and post-release fixes. Improved Core Web Vitals by reducing JS payload (selective imports) and adopting Next.js SSR/SSG; added React Query caching to cut repeat-fetch latency and stabilize page interactions. Integrated CodeRabbit into CI (GitHub Actions) and reviewed 30+ PRs, standardizing feedback and shortening review cycles. Implemented Clerk authentication for secure, role-based access, ensuring personalized workspaces. Reduced unnecessary React re-renders with memoization, boosting key-page interaction latency by ~25%. Refactored shared UI/data-fetch logic into reusable custom hooks, reducing duplicated code and speeding feature development.

Full Stack Developer at Developer Pro (Mentorship)

October 1, 2022 - May 1, 2024

Built a crypto portfolio web app with real-time market data using React + TypeScript, implementing watchlists/holdings tracking and authenticated portfolio persistence. Developed responsive, accessible UIs from a Figma prototype with Tailwind CSS and Styled Components, ensuring pixel-accurate UI across devices. Visualized market data with dynamic charts (Chart.js). Implemented Express REST APIs with Prisma + PostgreSQL to persist portfolios (CRUD), enforcing authorization and input validation. Optimized state architecture by splitting contexts into smaller providers, reducing unnecessary re-renders and improving overall UI performance by ~40%. Deployed the app to AWS EC2 with Nginx/HTTPS, environment secrets, and basic uptime monitoring.

IT Support / Systems Administrator at Porsche Center Nanhai Foshan

January 1, 2010 - December 31, 2018

Provided IT support and systems administration for dealership operations, including infrastructure maintenance, user support, and security.

Maintenance Service Technician at Panasonic Avionics, Burlingame CA

January 1, 2018 - December 31, 2023

Maintenance Service Technician, Burlingame CA, delivering on-site maintenance and technical support for avionics systems.