Michael S.

I build bulletproof React and Node.js platforms right the first time, or step in to rescue projects others couldn't finish. Clean code, lightning-fast performance, zero excuses. You need it done perfectly? Let's talk. With 10+ years of experience as a full stack developer, I've delivered 50+ projects that helped businesses launch reliable products and improve existing systems. My focus is scalability, maintainable code, fast performance, responsive design and secure delivery, from the first line of code to long-term support. WHAT I DO 🔌 API development & integrations REST API and GraphQL design, third-party and CRM integrations, webhooks, authentication, payments (Stripe), Twilio API, Facebook Conversion API, Twitter API. Secure, documented APIs that connect your product to the tools your business runs on. 🧱 Full-stack web apps, SaaS platforms & MVPs, built from scratch End-to-end products from zero: React and Next.js front ends powered by Node.js, Express.js or Python (FastAPI, Django) back ends, multi-tenant SaaS, authentication and roles, subscription billing, real-time features, admin panels, dashboards, portals and business systems (CRM, ERP, marketplaces). 🤖 AI integration & AI-powered products OpenAI and Claude integrations, LangChain, AI agents, AI chatbots, RAG with vector databases and embeddings, NLP workflows, machine learning features and intelligent automation inside React, Node.js and Python products. 🎨 Front-end development React, Next.js, TypeScript, Redux, Vue.js, Tailwind CSS, Bootstrap, HTML5, CSS3, responsive design, UI/UX from Figma, reusable component systems and fast, SEO-friendly pages. 🗄️ Back-end & databases Node.js and ExpressJS services, REST and GraphQL back ends, PostgreSQL, MySQL, MongoDB, Supabase, SQL, database architecture and design, role-based access control, caching and performance tuning. 🔧 Rescue, refactoring, upgrades & ongoing support Taking over unfinished or broken projects, fixing bugs, stabilizing and refactoring legacy code, migrations and platform upgrades, adding features, code reviews, automated testing and QA, long-term support and contract or part-time development. ☁️ Cloud & DevOps AWS, Docker, Kubernetes, Git and CI-ready workflows for reliable MERN stack deployments. 📱 Mobile React Native apps with scalable API architecture. TYPICAL PROJECTS - Build a SaaS platform or MVP from scratch with React, Node.js or Python - Add AI features, agents, chatbots or RAG to an existing product - Build or fix API integrations with third-party platforms, CRMs and payments - Build an admin panel, dashboard, portal or internal tool - Take over, stabilize and finish a project another team could not complete - Refactor, upgrade or migrate a legacy web application - Long-term development partnership, contract or part-time INDUSTRIES E-commerce · SaaS · Real Estate · Healthcare · Education · FinTech · AdTech · LegalTech · EdTech · Travel · Logistics · Retail · Marketplaces · Startups · Enterprise · Media · HR & Recruitment · Insurance · Gaming 💡 PROJECTS I'M PROUD OF 🔹 AI SaaS platform: scalable SaaS product built with React, Node.js, Express.js, PostgreSQL and GraphQL, with AI integration for analytics automation and machine learning features. Increased engagement by 45%. 🔹 E-commerce platform: storefront with React, Node.js, MongoDB and API integrations, secure checkout and inventory systems. Improved load speed by 40%. 🔹 Analytics dashboard & admin panel: built with Python, Django, React and Redux, with AI chatbot and advanced analytics features. Reduced API response time by 35%. 🚀 WHY WORK WITH ME ✔ 10+ years as a full stack developer, 50+ projects delivered ✔ Front-end and back-end ownership: no handoff gaps between UI, API and database ✔ AI integration built into the architecture from day one ✔ Long-term support from MVP to scaling 🔹 TECH STACK JavaScript · TypeScript · React · Next.js · Node.js · ExpressJS · Python · FastAPI · Django · Vue.js · React Native · Redux · MongoDB · PostgreSQL · MySQL · SQL · GraphQL · REST API · Supabase · HTML5 · CSS3 · Bootstrap · Tailwind CSS · Figma · OpenAI · Claude · LangChain · AWS · Docker · Kubernetes · Git · MERN Stack 📩 Ready to build your next web application, SaaS or AI-powered product? Send me an invite or message me directly with your idea, a link to your product or a short description of the task, and I will reply with a first assessment. 📆 Last Updated: 11/3/26