AI-Powered Customer Support Chatbot Development

I'm looking for an experienced AI developer to create a custom AI model for a chatbot with natural language processing (NLP) capabilities. The chatbot will handle customer interactions, providing accurate and contextual responses. You will be responsible for developing, training, and fine-tuning the AI model to ensure it performs effectively. The front-end and back-end development is already covered by my team, so your focus will be solely on the AI model, which will need to be integrated with the existing website. Experience with machine learning, NLP frameworks (e.g., TensorFlow, PyTorch, GPT), and seamless model integration is required.

Deliverables:
- Fully trained AI chatbot model
- Integration with back-end system
- Documentation for implementation and maintenance