Supriya K.

Are you looking for a Node.js Developer, React.js Developer, or MERN Stack Developer to build a scalable web application, AI SaaS platform, or AI-powered product? I specialize in Node.js Development, React.js Development, MERN Stack Development, Full Stack Development, Backend Development, and AI-Powered Application Development. I work with international clients across EST/EDT, PST/PDT, CST/CDT, and GMT/BST time zones, with flexible overlapping hours for meetings, sprint planning, and project updates. I specialize in AI SaaS Development, AI Workflow Automation, and AI Integration, helping businesses turn AI ideas into scalable, production-ready solutions. From building AI-powered SaaS platforms to automating complex business processes, I focus on delivering intelligent systems that improve efficiency, reduce manual work, and create real business value using LLMs, Claude, and Python. My expertise includes AI Agent Development and AI Architecture, building intelligent agents and multi-agent systems using LangGraph, LLM orchestration, and AI-powered workflows. I help businesses integrate AI into their products, connect multiple AI models and tools, and develop context-aware systems that can reason through tasks, retrieve relevant information, and automate complex operations. Whether you need an AI SaaS product built from scratch, custom AI agents, LLM-powered applications, RAG-based knowledge systems, or end-to-end AI workflow automation, I can help turn your vision into a reliable, scalable solution using the right combination of LLMs, Claude, Python, LangGraph, and modern AI technologies. I help startups, SaaS companies, and established businesses turn ideas into reliable web applications, business platforms, dashboards, APIs, and automation solutions. 🚀 WHAT I BUILD Node.js Backend Development REST API development and API integration Express.js and NestJS applications Authentication, authorization, and role-based access Database design and integration React.js Frontend Development Custom React.js application development MERN Stack Development: MongoDB, Express.js, React.js, and Node.js development End-to-end MERN stack application development SaaS platforms and multi-tenant applications MVP development from idea to production Marketplace, CRM, business management, and workflow applications Database integration, API development, authentication, and deployment When you need a dedicated Node.js backend developer, a React.js frontend developer, or a MERN Stack Developer to build your complete product, I can help across the development lifecycle. 🤖 AI-POWERED DEVELOPMENT I use AI-powered development tools such as Claude, Cursor, and OpenAI Codex to accelerate software development, debugging, refactoring, testing, and implementation. My AI-assisted development workflow helps me explore solutions, reduce repetitive work, and improve development efficiency while maintaining control over architecture, security, code quality, and final implementation. I can also help integrate AI capabilities into applications with Node.js APIs and React.js applications 🔌 THIRD-PARTY API INTEGRATION I build integrations that connect your application with payment providers, communication platforms, authentication services, and business APIs. Examples include Stripe, PayPal, Twilio, SendGrid, Plaid, Google Maps, Google Calendar, OAuth providers, webhooks, and external REST APIs. My focus is on reliable API communication, proper error handling, secure authentication, and smooth data exchange between systems. 💼 SELECTED PROJECT EXPERIENCE 1. Inspection Management & Client Communication Platform: An inspection management platform focused on business workflows and client communication, relevant to Node.js backend development, React.js interfaces, and full-stack web applications. 2. Hiring & Recruitment Platform: A recruitment platform built around hiring workflows and user-facing functionality, aligned with Node.js development, React.js frontend development, and MERN stack applications. 3. Local Community Discovery Platform: A community discovery platform that helps users explore local communities through interactive web experiences and API-driven application functionality. 4. Blood Donation & Healthcare Platform: A healthcare-focused blood donation platform supporting user workflows and information management through modern web application development. 5. Enterprise Emissions Inventory Management Platform: Built with React.js, TypeScript, node, PostgreSQL, and AG Grid, featuring Excel/CSV imports, inventory navigation, and role-based access control. Whether you need a Node.js Developer, React.js Developer, MERN Stack Developer, Full Stack Developer, or AI-Powered Application Developer, let's discuss your requirements and build a solution that supports your business.