Linh H.

(っ◔◡◔)っ ♥ 𝐃𝐨𝐧’𝐭 𝐥𝐞𝐭 𝐭𝐡𝐞 𝐩𝐫𝐞𝐭𝐭𝐲 𝐟𝐚𝐜𝐞 𝐟𝐨𝐨𝐥 𝐲𝐨𝐮 - 𝐈’𝐦 𝐚 𝐛𝐚𝐭𝐭𝐥𝐞-𝐭𝐞𝐬𝐭𝐞𝐝 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫. ♥ I'm a SaaS builder & senior full-stack developer who turns ideas into production-ready products. I build SaaS platforms, AI-powered apps, web applications, internal tools, APIs, and Chrome extensions - from MVP to production and beyond. My stack includes Next.js, React, TypeScript, Node.js, Firebase, Supabase, PostgreSQL, and AI APIs. I’m not just here to write code. I care about product architecture, UX, scalability, and long-term maintainability. ✅ Skills ⭐ JavaScript / TypeScript - React, Next.js, Node.js, jQuery ⭐ SaaS & Web Application Development - multi-tenant architecture, REST APIs, authentication, authorization, RBAC ⭐ Databases - PostgreSQL, Supabase, Firebase Firestore, Realtime Database ⭐ Google Cloud & APIs - Gmail, Google Sheets, BigQuery, OAuth 2.0, Google APIs ⭐ Authentication & Security - Google OAuth, Firebase Auth, JWT, role-based access control ⭐ AI Integrations - OpenAI API, Anthropic Claude API, Google Gemini ⭐ Payments & Subscriptions - Stripe, Lemon Squeezy, Gumroad, Zoho Billing, ExtensionPay ⭐ Cloud & Deployment - Cloudflare, Vercel, Firebase, GitHub Pages ⭐ Browser Automation & Data Scraping - Chrome Extensions, web scraping, browser automation ✅ What can I do ? ⭐ Build SaaS websites / web applications all the roles: backend, frontend, full-stack. ⭐ Build reliable, scalable multi-tenant SaaS - auth, billing, integrations & data isolation. ⭐ Create data scraping tool and exporting to external platforms (LinkedIn & LinkedIn Recruiter, Indeed...) ⭐ Custom ad injection within Google search results ⭐ Amazon automation & scraping - Amazon storefronts and Seller Central ⭐ Build email productivity tools - Gmail tracking, automated follow-ups & outreach workflows ⭐ Audit, review & validate existing codebases - whether written by humans or AI. ⭐ Deploy & maintain production applications - from MVP codebase to production. ⭐ Fix bugs / Improve existing system. ✅Featured Products: ⭐ 𝐎𝐫𝐢𝐠𝐢𝐧𝐚𝐥𝐢𝐭𝐲𝐀𝐈 𝐀𝐈 𝐂𝐨𝐧𝐭𝐞𝐧𝐭 𝐆𝐞𝐧𝐞𝐫𝐚𝐭𝐨𝐫 (20000+ users) ⭐ 𝐊𝐞𝐲𝐬𝐞𝐭 (Web Application+ Chrome Extension): Chrome Extension (Manifest V3), Next.js, React, TypeScript, NextAuth.js, REST API, Vanilla JS, MongoDB, Stripe. ⭐ 𝐀𝐮𝐭𝐨 𝐅𝐨𝐥𝐥𝐨𝐰 𝐔𝐩 𝐈𝐭! ⭐ 𝐀𝐮𝐝𝐢𝐨 𝐁𝐫𝐚𝐢𝐧 𝐅𝐨𝐜𝐮𝐬 ⭐ 𝐈𝐝𝐞𝐧𝐭𝐢𝐭𝐲𝐂𝐡𝐞𝐜𝐤 ⭐ 𝐒𝐢𝐭𝐞𝐣𝐚𝐛𝐛𝐞𝐫