Jin

Jack

Production AI Agent Engineer specializing in Python, LangChain/LangGraph, MCP integrations, RAG systems, FastAPI backends, and data automation. I build reliable, testable tools that connect APIs, wallet and exchange data, structured and unstructured data, and LLM workflows. For crypto and Web3 clients, I can help with transaction-data cleanup and reconciliation, on-chain or exchange data pipelines, research knowledge bases, monitoring, and backend integrations. I work in small, clearly scoped milestones, provide concise documentation, and keep credentials and private keys under the client's control. Available for fixed-price prototypes, production hardening, debugging, and ongoing maintenance.