Sagar J.

AI Automation & AI Agents | n8n, Make, Python, API & ERP Systems

I build AI automation and custom business systems for companies whose operations have outgrown their tools — 3,343 hours across 38 contracts on Upwork, 100% Job Success, Top Rated. ✅ Custom ERP built from scratch — accounting, inventory, CRM and HR modules — 662 hours, closed at 5.0, then extended by the same client ✅ 10+ years across manufacturing, healthcare, fintech, education and e-commerce ✅ Led a 25-person delivery team before going independent ✅ Full-stack in Python, Node.js and React — so automation isn't limited to what a no-code tool allows Most automation stops at the edge of the SaaS tools. Connect the CRM to the spreadsheet, fire a webhook, done. That works right up until the process you actually need to automate lives inside your ERP, your accounting system, or a database nobody has touched in five years. That's where I come in. I build both layers — the automation on top, and the custom system underneath. 𝗪𝗛𝗔𝗧 𝗜 𝗕𝗨𝗜𝗟𝗗 • AI agents and workflow automation — document reading, data extraction, record updates, approval routing, and escalation to a human when confidence is low • Business process automation — the repeat work your team does every week, moved into systems that don't forget • AI integration — OpenAI API, LangChain, retrieval over your own documents (RAG), function calling, prompt and cost optimisation • Custom ERP and ERPNext — full builds and deep customization across Accounting, Inventory, CRM and HR, with role-based permissions and audit trails • API integration — REST, GraphQL, webhooks, queues, scheduled jobs, and two-way sync between systems that were never designed to talk • Internal tools and dashboards — React and Next.js front ends a non-technical team can actually operate 𝗧𝗢𝗢𝗟𝗦 𝗜 𝗪𝗢𝗥𝗞 𝗪𝗜𝗧𝗛 Automation & Integration — n8n | Make | Zapier | REST APIs | Webhooks AI & LLM — OpenAI API | LangChain | RAG | Vector databases | Prompt engineering Voice AI — Vapi | Twilio CRM & Ops — GoHighLevel | Airtable | HubSpot | ERPNext Backend — Python | FastAPI | Flask | Django | Node.js Frontend — React | Next.js | Tailwind Databases — PostgreSQL | MySQL | MongoDB Mobile — React Native | Flutter CMS — WordPress | WooCommerce 𝗪𝗛𝗬 𝗧𝗛𝗜𝗦 𝗜𝗦 𝗗𝗜𝗙𝗙𝗘𝗥𝗘𝗡𝗧 Most AI projects fail at the integration layer, not the model. The demo works. Then it can't read the ERP, can't write back to the CRM, and nobody trusts the output enough to take the human out of the loop. I spent years building the systems first. That's why the automation holds up in production — error handling, retries, fallbacks and alerts, because integrations fail at 3am and someone has to know about it. 𝗜 𝗪𝗜𝗟𝗟 𝗧𝗘𝗟𝗟 𝗬𝗢𝗨 𝗪𝗛𝗘𝗡 𝗔𝗜 𝗜𝗦𝗡'𝗧 𝗧𝗛𝗘 𝗔𝗡𝗦𝗪𝗘𝗥 A fair number of "AI projects" are a database query and a scheduled job in a costume, and they cost a tenth as much. Sometimes the right answer is a cleaner integration, one source of truth, or fixing the process before automating it. I'd rather say that on the first call than bill you for the expensive version. 𝗛𝗢𝗪 𝗜 𝗪𝗢𝗥𝗞 • Scope first — cost, timeline and what's explicitly out of scope, in writing, before either of us commits • Working software you can see every week • Full handoff — documentation, naming conventions and a recorded walkthrough, so your team isn't dependent on me • I stay your point of contact throughout 𝗬𝗢𝗨'𝗥𝗘 𝗔 𝗚𝗢𝗢𝗗 𝗙𝗜𝗧 𝗜𝗙 🔹 Your team spends 10+ hours a week on work a system should be doing 🔹 Your ERP, CRM and spreadsheets don't talk to each other 🔹 Reporting is still assembled by hand 🔹 You tried automation and it broke silently 🔹 You want AI in the business, but only where it genuinely pays for itself 🔹 You need someone who can build the system, not just connect two apps Fluent English, 30+ hours a week, full overlap with European hours and morning overlap with the US East Coast. Typical response 4-8 hours. Tell me what the process looks like today, who does it, and how long it takes them. I'll tell you the simplest way to fix it — and whether it's worth your money.