Harsh C.

Senior Full Stack AI SaaS Developer | Node.js, Next.js, AWS I build AI-powered SaaS products, scalable web applications, and production-ready backend systems using Node.js, Next.js, React, TypeScript, OpenAI, PostgreSQL, and AWS. Whether you are launching an AI SaaS MVP, adding AI features to an existing product, or scaling a web application for real users, I can help turn your requirements into reliable, maintainable software. ⚡ WHAT I CAN BUILD AI Applications and Automation: AI agents, LLM integrations, RAG pipelines, AI chatbots, document processing, intelligent workflows, and third-party AI integrations. SaaS Products and Platforms: Multi-tenant architecture, authentication, role-based access control, subscription management, admin dashboards, analytics, and scalable product infrastructure. Backend Systems and APIs: Node.js, NestJS, Express.js, REST APIs, GraphQL, PostgreSQL, Redis, WebSockets, background jobs, and event-driven systems. Modern Web Applications: Next.js, React, TypeScript, Tailwind CSS, responsive interfaces, dashboards, and end-to-end product development. Cloud, Deployment, and Integrations: AWS, Docker, CI/CD, Linux, Nginx, production deployments, Stripe subscriptions, payment webhooks, and external API integrations. ⚡ HOW I HELP YOUR PRODUCT MOVE FORWARD I can work with an existing codebase, understand the current architecture, identify bottlenecks, implement features, integrate services, and improve reliability without automatically resorting to a complete rewrite. I focus on clean architecture, maintainable code, secure integrations, performance, and practical engineering decisions that support the product as it grows. ⚡ PROJECTS I AM A GOOD FIT FOR Building an AI SaaS MVP from an established specification; adding AI agents, RAG, or automation to an existing application; developing a Node.js backend or Next.js product; taking an MVP or Replit-built application toward production; implementing SaaS subscriptions, Stripe billing, and webhooks; refactoring an existing codebase and improving application reliability; integrating APIs, databases, AI services, and cloud infrastructure. ⚡ MY TECH STACK Frontend: Next.js, React, TypeScript, Tailwind CSS Backend: Node.js, NestJS, Express.js, Python AI: OpenAI API, LLM integrations, RAG, AI agents, automation Databases: PostgreSQL, MongoDB, MySQL, Redis Cloud and DevOps: AWS, Docker, CI/CD, Linux, Nginx, DigitalOcean Payments and APIs: Stripe, REST, GraphQL, WebSockets, third-party integrations If you have a product to build, an existing application to improve, or an AI workflow to turn into a reliable feature, let's discuss the requirements, technical approach, and the best way to deliver it.