AI Voice Agent Developer Needed for Inbound & Outbound Call Automation

We are missing leads because inbound calls are not always answered, outbound follow-ups are delayed, and our team spends too much time qualifying prospects, booking appointments, writing notes, and updating CRM records manually. We need an AI voice automation developer to build a reliable inbound and outbound calling workflow that can answer calls, make follow-up calls, qualify leads, collect details, summarize conversations, update our CRM, book appointments, and trigger human handoff when needed. Skills / Tech Stack: OpenAI API, Claude API, Vapi, Retell AI, Bland AI, ElevenLabs, Twilio, Python, FastAPI, LangChain, LangGraph, Webhooks, API Integration, GoHighLevel, HubSpot, Make.com, Zapier, PostgreSQL, Docker, Call Transcript Processing, Appointment Booking Automation Scope: Build inbound and outbound AI calling workflows Create call scripts and lead qualification logic Connect calls through Twilio, Vapi, Retell AI, Bland AI, or ElevenLabs Capture transcripts, summaries, lead details, and call outcomes Update CRM records and trigger follow-ups automatically Add call logs, error handling, and clear documentation We want to reduce missed calls, improve lead response time, and automate repetitive sales/support calling with a reliable AI voice agent.