Python Developer for AI System

We are seeking a skilled Python developer experienced with multi-agent AI systems. The project involves building and refining a multi-agent system using LangGraph (or LangChain) and creating a clean web interface with Streamlit or Gradio. This engagement will begin with a small fixed-price paid test task. An NDA must be signed before the test task is issued. Payment for the test will only be released if the deliverable meets the stated functional requirements after evaluation. Only candidates who successfully complete the test will be considered for the full project. All work product will be fully owned by the client, and an IP assignment will be required. Ideal candidates will have strong experience with Python, LangGraph/LangChain, Streamlit or Gradio, and integrating LLM APIs. Clear communication in English is required. What We Are Seeking: Strong Python skills. Hands-on experience with LangGraph or LangChain (or CrewAI). Experience building interfaces with Streamlit or Gradio. Experience integrating LLM APIs. Clean, readable code and clear communication in English. Engagement Structure: Application review. Shortlisted candidates will be required to sign an NDA. After the NDA is signed, a small fixed-price test task will be issued. The test deliverable will be evaluated for functionality and code quality. Payment for the test is fixed and released only if the deliverable meets requirements. Full project details will be shared only with the selected developer. The full project will be structured with fixed-price milestones and will include a formal IP assignment. Please include the following in your proposal: Relevant experience with LangGraph / LangChain / multi-agent systems. Examples of similar work (GitHub or project links preferred). Your typical hourly rate (for reference). Your location / time zone. Confirmation that you are willing to sign an NDA before receiving the test task. Confirmation that you accept a fixed-price test task whose payment depends on successful evaluation. Confirmation that you agree all work product will be owned by the client (IP assignment). We are seeking someone reliable who writes clean code and communicates clearly in English.