Senior AI Chatbot Developer Needed (OpenAI, RAG, APIs, Production-Ready Solution)

We are looking for an experienced AI developer to build a custom chatbot powered by modern Large Language Models (OpenAI, Claude, Gemini, or similar). The chatbot will be used to assist users with business-related questions and should provide accurate, context-aware responses based on our data and workflows. Responsibilities Design and develop an AI chatbot using modern LLM technologies. Integrate APIs such as OpenAI, Anthropic, or Google AI models. Implement knowledge base retrieval (RAG) using our documents and data. Create conversation memory and context handling. Develop backend APIs and chatbot logic. Integrate with web applications and/or messaging platforms. Optimize response quality, speed, and reliability. Provide documentation and deployment support. Required Skills Experience with OpenAI, Claude, Gemini, or similar LLMs. Strong Python or Node.js development skills. Experience with RAG, vector databases, embeddings, and prompt engineering. Knowledge of LangChain, LlamaIndex, or similar frameworks. API integration experience. Understanding of chatbot UX and conversational design. Experience deploying AI applications to cloud platforms. Nice to Have Experience with voice AI. Multi-language chatbot development. Knowledge of WhatsApp, Telegram, Slack, or Discord integrations. Experience fine-tuning or evaluating AI models. Project Details Please include: Relevant AI chatbot projects you've built. Technologies and LLMs you've worked with. Estimated timeline. Proposed architecture for this project. Your hourly rate or fixed-price quote. Deliverables Fully functional AI chatbot. Source code and documentation. Deployment instructions. Testing and bug fixes before handoff.