Heena t.

Is your app slow, buggy, or stuck halfway through development? I step in, find the real problem, and get your product working, from first build to production. I help startups and businesses turn ideas into reliable SaaS products, and turn messy codebases into ones they can scale. I'm a Top Rated Plus full-stack developer specialising in React, Next.js, Node.js and TypeScript. ✅ $200K+ earned on Upwork ✅ 80+ completed jobs ✅ 100% Job Success Score ✅ 9+ years of development experience ⭐⭐⭐⭐⭐ "Very professional, skilled and adaptable. Highly recommended." — Magdolin H. Projects I've built include a multi-tenant B2B marketplace, a SaaS platform for artists, a car auction app, and tools for building energy savings, plus long-term work rescuing and upgrading existing platforms. WHAT I CAN DO FOR YOU ✔ Build SaaS products and marketplaces end to end, from MVP to production ✔ Multi-tenant platforms with role-based access, dashboards and billing ✔ Fix, refactor and speed up existing React/Next.js + Node.js apps ✔ Add AI/LLM features, Stripe payments, API integrations and n8n automations to your product CORE STACK Frontend: React, Next.js, TypeScript, Tailwind CSS, React Native Backend: Node.js, Express, NestJS, REST APIs, GraphQL, WebSockets Data: PostgreSQL, Prisma, MongoDB, Supabase, Firebase Also: Laravel, PHP, Shopify, WooCommerce, Strapi HOW I WORK I don't just take a ticket and start coding. I first understand the existing architecture, identify the real problem, and choose an implementation that won't create unnecessary technical debt. ✔ Daily progress updates on Upwork, so you always know where things stand ✔ Available during US and European mornings for calls and quick replies ✔ Ownership from development through deployment, not just handing over code Send me your codebase, requirements or product idea, and I'll tell you the best place to start.