Browse categories
Explore
Fiverr Pro
English
$
USD
Changbao Z
@changboa66
AI Agent and RAG Backend Developer Java LangChain LangGraph
China
Chinese, English
About me
I am a backend developer with 13+ years of Java, API, database, and Linux experience. I now focus on AI application backends, including LangChain and LangGraph agents, RAG chatbots, OpenAI and Llama integrations, vector search, FastAPI services, and production ready API design.
I can help you build reliable AI workflows, document based chatbots, backend integrations, and agent systems with clean code, clear communication, and practical engineering judgment.
Skills
Changbao Z
Offline •
Average response time: 1 hour
See my services
AI Integrations
I will build langchain langgraph ai agents and rag chatbots
