Huy L.

I help startups and growing businesses build and improve SaaS products using Next.js, React, Node.js, PostgreSQL, and Stripe. Most of my work involves joining existing products, understanding how they work, fixing issues, building new features, and helping teams move faster without creating technical debt. I've worked on subscription platforms, customer portals, admin dashboards, internal business tools, and marketplace applications. I'm comfortable working across both frontend and backend development, from React and Next.js interfaces to APIs, databases, payments, and third-party integrations. Common areas I help with: ✔ Building and maintaining SaaS products ✔ Stripe subscriptions, billing flows, and webhooks ✔ Admin dashboards and internal tools ✔ API integrations and backend development ✔ Performance improvements and bug fixing ✔ Modernizing and scaling existing applications Tech Stack Frontend • Next.js • React • TypeScript • Tailwind CSS Backend • Node.js • Express.js • NestJS Database • PostgreSQL • Supabase • Firebase • MongoDB Integrations • Stripe • OpenAI APIs • Third-party APIs • Realtime systems and WebSockets Infrastructure • Vercel • AWS • DigitalOcean • Docker Clients typically work with me when they need someone who can quickly understand an existing codebase, work independently, communicate clearly, and deliver production-ready solutions without constant supervision. If you need help building a SaaS product, improving an existing platform, integrating Stripe, or delivering new features, I'd be happy to discuss your project.