Vadym C.

⚡ Full Stack Developer React Node: 11 years in software development, 50+ projects, 100K+ users on a single platform. I build web apps end-to-end with React, Next.js, Node.js and TypeScript and take real ownership, from scratch or an existing codebase to deployment, with documentation and production-ready code. 🏆 WHAT I BUILD ✔ As a full stack developer React Node I have shipped 50+ products with React, Node.js, Express.js, NestJS and TypeScript, including Node.js Next.js and Nextjs Nodejs apps that stay maintainable. ✔ As a full stack Next.js and React developer I delivered 30+ SPAs and SSR apps with Tailwind CSS, HTML, HTML5, CSS and CSS 3: Next.js Supabase, Prisma Next.js, Nextjs Strapi and Nextjs SaaS projects. As a front end developer Next.js I build the Nextjs frontend; as a backend developer Nest.js, the API. MVP in 4-6 weeks. ✔ As a full stack developer React Node, full stack developer SaaS and saas developer I build multi-tenant platforms with authentication, RBAC, SSO, 20+ Stripe integrations and admin dashboards, as an mvp developer for startups or on a live product. ✔ As a full stack developer AI and full stack developer LLM I add AI features to full stack Node.js React products with OpenAI, Claude, LangChain, RAG and n8n: AI agents, automation and semantic search that save clients 15+ hours/week. 🔥 CLIENT RESULTS ✔ As a full stack developer React Node I built an AI website builder with 100K+ users: real-time AI content generation, a site in under 30 seconds. Next.js, Node.js, Stripe, AWS. ✔ As a full stack Node.js React developer I shipped an AI agents platform with 80K+ users: agents set up in 5-10 seconds, 10+ integrations, up to $4K saved per agent per month. ✔ As a full stack Node.js React developer I scaled an e-commerce backend to 300 req/s at peak with zero downtime and cut response time from 1.2s to 180ms on a 184M+ records database. ✔ As a full stack developer ecommerce I built omni-channel commerce with a Next.js storefront: 12K+ SKUs, 5 warehouses, 3K+ orders/month, POS sync under 30 seconds. ✔ As a full stack Node.js React developer I built a real-time energy storage monitoring platform with Next.js, NestJS and PostgreSQL: 50+ data points/sec, 6 modules, zero downtime. ✔ I built an enterprise no-code platform on Node.js and Vue.js with Docker and Kubernetes: 3K+ apps created, 70% faster than traditional development. ✔ I shipped an e-commerce storefront with 95+ PageSpeed and sub-2s load on Next.js, TypeScript and Tailwind CSS. ✔ I cut consulting prep by 60% with an enterprise SaaS: multi-tenant architecture, RBAC, SSO, 200+ workflows mapped. ✔ I reduced manual data processing by 70% with a logistics control tower: 8 API integrations, real-time tracking across 4 providers. ✔ As a full stack developer CRM I improved campaign performance by 38%: lead routing, data sync and CRM workflows automated with n8n. ✔ 7x faster workflows for clients, and 70% of my clients continue long-term collaboration. 🚀 WHERE I DELIVER 📌 As a full stack developer React Node I also work as a full stack developer fintech, full stack developer healthcare and full stack developer marketplace: vendors, inventory, commissions, payment gateways, booking flows as a b2b saas booking system developer, reporting dashboards. 📌 As a full stack Node.js React developer I delivered 15+ integrations including Stripe, HubSpot, Twilio, SendGrid, Meta and Google. I also work as a full stack developer Twilio, full stack developer React Firebase and full stack developer Supabase React: REST APIs, webhooks, WebSockets, third-party API integration and data migration. 📌 As a full stack Node.js React developer and full stack developer MERN I build on the MERN stack: MongoDB, Express.js, React, Node.js. As a full stack developer Node.js or front end developer React I take one side of the stack. 📌 As a full stack Node.js React developer and mobile app developer I build React Native apps for iOS and Android. 📌 As a full stack developer Laravel I work with PHP, Laravel, Vue.js, MySQL, Bootstrap, jQuery and web design on existing platforms: debugging, code review and rebuilds. 📌 Searching for a python full stack developer (Django, Flask), .NET full stack developer, WordPress developer, UX designer, full stack developer Shopify, full stack developer Webflow, webflow developer saas, gambling or coin flip platforms? My core is JavaScript and TypeScript; I will tell you honestly if it fits. ⚙️ HOW I WORK Hands-on full stack developer React Node, full stack web developer and web developer: I work independently in React.js and Node.js codebases, reply within 2 hours and keep clear communication. Full-stack development with Git, code review, CI/CD, security and best practices built in. 🚀 Looking for an experienced full stack developer React Node or full stack AI SaaS developer who takes real ownership? Share your context and I will come back with structure and next steps