Harmitkumar M.

I build AI agents, automations, and AI-powered SaaS that actually survive production — 10+ years full-stack, Top Rated Plus, 99% Job Success, 4,000+ hours, $60K+ delivered on Upwork. Most AI projects die between the demo and the real world. My focus is the part that keeps them alive: evaluation, guardrails, error handling, human-in-the-loop fallbacks, and clean architecture — so your agent doesn't hallucinate to customers or silently break when an API changes. WHAT I BUILD - AI Agents & Multi-Agent Systems — LangGraph, Pydantic AI, custom agentic loops, MCP servers - AI Voice Agents — inbound/outbound calling, appointment booking, lead qualification (Twilio-based stacks) - RAG & AI Knowledge Bases — chunking, vector search, citations, "I don't know" behavior instead of hallucinations - Workflow Automation — n8n, Make, custom Node.js/Python pipelines with logging and retry logic - AI Chatbots & Assistants — web, WhatsApp, Slack; context-aware and grounded in your data - LLM Integration — OpenAI, Anthropic Claude, Gemini, and local/open-source models (Ollama, Llama) when privacy or cost demands it - AI features inside your existing platform — Shopify, WordPress/WooCommerce, Wix, Webflow; I've shipped on these platforms for a decade, AI is the new layer, not a rebuild - CRM & Business Tool Automation — GoHighLevel (GHL), HubSpot, Zoho, Airtable, Notion, Slack, WhatsApp Business; AI-powered lead follow-up, SMS/email reactivation campaigns, pipeline automation, and appointment booking inside the tools you already run - SaaS Platforms — MVP to scale: React/Next.js, Node.js, Python/FastAPI, AWS/GCP, Docker, CI/CD HOW I WORK I develop AI-natively: Claude Code, Cursor, and Codex do the heavy lifting; my value is the senior judgment that validates what they produce — security, maintainability, and architecture that your next developer can actually read. If you're hiring someone to direct AI coding tools, that's literally my daily workflow. Every engagement includes: clear acceptance criteria up front (accuracy targets, latency, channels), transparent API/usage cost planning, documented handover, and post-launch support. WHAT YOU GET Not a demo. A system with measurable results — hours saved, tickets deflected, calls booked — that keeps working after I'm gone (though most clients keep me on retainer to make it better). Building an AI product, automating a workflow, or adding AI to your platform? Message me — I'll reply with a concrete first step, not a template. API Integration, REST API, Webhooks, Claude API, Anthropic API, Claude Code, Python, OpenAI API, ChatGPT, AI Agents, AI Agent Development, n8n, PostgreSQL, LLM Integration, Workflow Automation, AI Automation, Business Process Automation, CRM Automation, AI SaaS, React, TypeScript, Make, Structured JSON Output, Twilio, SMS Automation, Zapier, Lead Qualification, Lead Scoring, Dashboards, Reporting Automation, AWS, Docker, Error Handling, Monitoring, Document Processing, OCR, PDF Data Extraction, MCP, Model Context Protocol, RAG, Tool Calling, Function Calling, Supabase, Email Automation, WhatsApp Automation, QuickBooks Online, GoHighLevel, GHL, AI Voice Agent, AI Chatbot, FastAPI, Multi-Tenant SaaS, Web Scraping, Data Pipelines, LLM Evaluation, Stripe, OneDrive, Vector Database, LangGraph, CrewAI, Prompt Engineering, HubSpot, Vapi, Retell AI, ElevenLabs, Microsoft 365, SharePoint, Browser Automation, RPA, Node.js, Next.js