AI Full Stack Developer for Small OpenAI Chat Feature

I'm looking for an AI Full Stack Developer to complete a small task in my existing web application. Task: Integrate a simple AI chat feature using the OpenAI API. Create one API endpoint. Connect the frontend chat input with the backend. Display the AI response in the chat window. Ensure the feature works correctly. This is a small task and should take an experienced developer about 30–60 minutes. If the work is completed successfully, I'll have more AI development tasks in the future.