I will build langgraph and langchain ai agents and multi agent systems


About this gig
Agent demos are easy. Agents that run every day without looping, calling the wrong tool or burning through tokens are much harder, and that's the part I focus on.
I build AI agents and multi-agent systems in Python with LangGraph and LangChain: explicit state, validated tool calls, persistent memory, human approval where the stakes are high, and a FastAPI service your product can call.
Things I've shipped:
- A booking agent for restaurants, hotels and spas across WhatsApp, Instagram, Messenger, LINE and web chat, built on LangGraph with nine business tools, replying in English or Thai
- A five-agent security pipeline that finds vulnerabilities, confirms them in a sandbox, writes patches and opens a pull request
- Multi-agent deal and entity intelligence for a US music-industry platform, as their AI engineer
What happens after launch matters too. I set up tracing (Langfuse or LangSmith) and an evaluation set built from real cases, so when you change a prompt or a model you can see whether results improved.
Works with OpenAI, Claude, Gemini, AWS Bedrock or local models, deployed on GCP, AWS or your own servers.
Get to know Abid
AI Engineer I Langraph I Langchain I AI Agents I n8n I OpenAI I Claude
- FromThailand
- Member sinceFeb 2016
- Last delivery4 years
Languages
English
My Portfolio
FAQ
LangChain or LangGraph: which do I need?
LangChain gives you building blocks: model wrappers, retrievers, tool integrations. LangGraph controls the flow: loops, branching, persistent state, retries and human approval. Most agents I build use LangGraph for control and LangChain where it saves time.
Why LangGraph instead of CrewAI or AutoGen?
LangGraph makes every step explicit, which makes agents easier to debug, test and trust. I can work in another framework if your team already uses one, and if a single LLM call or an n8n workflow would do the job, I'll say so.
How do you stop hallucinations and runaway loops?
Structured outputs validated with Pydantic, recursion and step limits, validation on every tool call, grounding answers in retrieved data, and an evaluation set that catches regressions before your users do.
Do I own the code? Can it run on my servers?
Yes to both. Full source goes to your repo, packaged with Docker. It can run on your cloud or servers, with local open-weight models or AWS Bedrock if data can't go to a third-party API.
What will it cost to run?
I estimate token cost per run during design. Common savings: smaller models for routing, caching repeated calls, and keeping prompts tight. You'll know the expected monthly cost before we build.
Do you build custom solutions or use templates?
Every project is designed around your workflow and business requirements. I focus on custom architectures rather than one-size-fits-all solutions.
Do I need to contact you before ordering?
Yes. AI projects vary significantly in complexity. Please message me first so we can discuss requirements, architecture, timeline, and scope.
Can you improve or extend an existing AI agent?
Absolutely. I can audit, optimize, migrate, or extend existing AI systems, including LangChain, LangGraph, RAG, and workflow automation projects.
1 reviews for this Gig
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handlinpiano

United States
Amazing work with my data. He was able to effectively process a ton of info in a short period of time. Will be working with again
$50-$100
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1 reviews for this Gig
| (1) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Recommend to a friend
- Service as described
Sort By
H 
handlinpiano

United States
Amazing work with my data. He was able to effectively process a ton of info in a short period of time. Will be working with again
$50-$100
Price
Helpful?

