Mayur S.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

I build AI-powered products and the full-stack apps around them: AI agents, AI voice agents, custom LLM / RAG chatbots and n8n automations, plus the Next.js and Node.js web apps, dashboards and APIs that make them work inside a real business. 8+ years as a Full Stack Developer | 90% Job Success | React, Next.js, Node.js, NestJS, AWS WHAT I BUILD AI Integration & LLM Apps • Add ChatGPT (OpenAI), Claude or Gemini to your web app, mobile app or SaaS • Custom LLM apps: RAG chatbots trained on your documents, knowledge-base assistants, internal copilots • LangChain, embeddings, vector databases, function/tool calling, structured outputs • Prompt engineering plus cost, speed and accuracy tuning for production AI Agents & Automation • AI agents that read emails, qualify leads, update your CRM, create documents and report back • n8n, Zapier and Make workflows connecting your CRM, Google Sheets, Slack, email, Stripe and more • Business process automation that removes repetitive manual work AI Voice Agents • AI voice callers and receptionists built on Vapi: inbound calls, outbound and scheduled calls, appointment booking, lead qualification • Automatic call summaries, transcripts and CRM updates after every call Full Stack Web & SaaS Development • SaaS platforms, admin dashboards, client portals and internal tools • E-commerce and marketplace builds, Shopify API integrations • REST and GraphQL APIs, authentication, payments, third-party integrations (DocuSign, Stripe, etc.) • AWS deployment (EC2, RDS, S3, Lambda), Docker, CI/CD RECENT WORK • Next.js + NestJS application with full AWS deployment (EC2, RDS) - 5-star review • React / TypeScript product development, 130+ hours - 5-star • E-commerce: premium hair & skincare store, Sitka Gear outdoor apparel store • Claim submission platform, DocuSign + React/Strapi integration, Shopify-connected mobile app TECH STACK AI: OpenAI API, Claude API, Gemini, LangChain, RAG, vector databases, Vapi, n8n, Zapier, Make Frontend: React, Next.js, TypeScript, Tailwind CSS, Redux Backend: Node.js, NestJS, Express.js, REST & GraphQL APIs, WebSockets Database: PostgreSQL, MongoDB, MySQL, Supabase, Firebase Cloud & DevOps: AWS, Docker, CI/CD, Vercel HOW I WORK 1. Quick call to understand the business problem, not just the feature list 2. Clear plan, tech stack and timeline before any code 3. Small milestones with demos and regular updates 4. Launch, monitor and support after delivery Clients consistently rate me as a clear communicator who is committed to quality, and I usually reply within a few hours. Have an AI idea, or a manual process that eats your team's time? Send me a message and I'll tell you what's possible, what it will take, and the fastest way to get it live.