AI Calling Agent & AI Chatbot Developer for Business Automation

We are looking for an experienced AI developer or agency to build an AI-powered calling agent and AI chatbot for our business. The goal is to automate customer interactions, answer common questions, qualify leads, schedule appointments, and provide 24/7 support while maintaining a natural, human-like conversation. Scope of Work AI Calling Agent Handle inbound and outbound phone calls Natural voice conversations with low latency Answer FAQs and customer inquiries Qualify leads based on predefined criteria Book appointments and send confirmations Transfer calls to human agents when needed Support call recording and conversation logs Integrate with CRM and calendar systems AI Chatbot Website chatbot with human-like conversations Answer customer questions using our knowledge base Lead qualification and information collection Appointment scheduling Live agent handoff when required Multi-language support (preferred) Integration with WhatsApp and other messaging platforms is a plus Preferred Tech Stack We're open to recommendations, but experience with some of the following is preferred: OpenAI (GPT-4.1/5) Claude ElevenLabs, Cartesia, or Deepgram Vapi, Bland AI, Retell AI, or Synthflow Twilio FastAPI / Node.js Python LangChain or similar AI frameworks Pinecone, Weaviate, or other vector databases Zapier, Make, or n8n HubSpot, Salesforce, GoHighLevel, or similar CRM integrations Deliverables Fully functional AI voice agent AI chatbot for our website Admin dashboard (preferred) CRM integration Analytics and conversation history Deployment to production Documentation and post-launch support Ideal Candidate Proven experience building AI voice agents Experience with LLMs and conversational AI Strong API integration skills Experience with telephony platforms Ability to deliver scalable and production-ready solutions Excellent communication skills To Apply Please include: Links to AI calling agent or AI chatbot projects you've built. Your recommended technology stack and why. Estimated timeline. Your fixed-price or hourly rate. Any suggestions that would improve this solution. We are looking for someone who can build a reliable, scalable solution and potentially work with us on future AI automation projects.