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I will build custom ai agents and multi agent workflows with langgraph
Nivakaran S
About this gig
I build AI agents that do real work, not demo chatbots.
I'm an AI engineer and founder focused on agentic systems with LangGraph and LangChain: multi-agent workflows, tool-calling agents, RAG over your documents, and LLM automation wired into your existing APIs and databases.
What you get:
- A working agent or multi-agent workflow in Python, built with LangGraph
- Integrations with your tools: APIs, databases, CRMs, internal docs
- Claude, GPT or Gemini, whichever fits your cost and quality needs
- Clean source code and a walkthrough of how it works
- Basic evals so you can see it behaves, not just hope it does
Good fit if you need:
- A support or ops agent that answers from your own data
- A multi-step workflow automated (research, triage, data entry, reporting)
- A prototype turned into something reliable enough for production
I also have hands-on experience in US healthcare revenue cycle management, so healthcare billing and admin workflows are familiar ground.
Message me before ordering with what you want automated. I'll tell you honestly whether an agent is the right tool and which package fits.
Get to know Nivakaran S
Nivakaran S
AI Engineer: LangGraph Agents, LLM Apps and Full Stack
- FromSri Lanka
- Member sinceJun 2025
Languages
Tamil, English, Sinhala
I am a Full Stack AI Engineer engineering end-to-end, production-ready platforms. I specialize in secure backend infrastructure, custom machine learning integrations, and mobile deployments.
My expertise includes architecting healthcare applications, managing vector databases (pgvector), integrating local LLMs (LangChain), ensuring HIPAA compliance with tamper-proof logging, and deploying final Android builds to the Play Store.
Tech Stack: Python, PyTorch, PostgreSQL, Docker, and Mobile UI integration. If you need a secure, data-sensitive AI product launched, let's talk.
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FAQ
Which LLM do you use?
Whichever fits your budget and quality bar: Claude, GPT or Gemini. You keep your own API keys, so usage costs are billed to you directly and stay under your control.
Do I own the code?
Yes. Every package includes full source code. Once the order is complete, it's yours to run, modify and deploy wherever you want.
What do you need from me to start?
A short description of the task you want automated, sample data or documents, and API access to any tools the agent should use. If you're unsure, message me first and we'll scope it together.
Can you deploy it for me?
Yes, deployment is included in the Production Build package: an API, hosting on your cloud account, and tracing so you can see what the agent is doing. Lower tiers deliver code you can run locally.
