Spanish-Speaking AI Voice Agent Developer – Retell AI / Vapi / Twilio

We are looking for an experienced AI Voice Agent Developer to build a production-ready AI phone receptionist for a medical/aesthetic clinic in Puerto Rico. The AI agent should: Answer inbound phone calls naturally Speak fluent Spanish (Puerto Rican/Latin American preferred) and English Answer questions about our services, pricing and promotions Qualify potential clients Book, reschedule and cancel appointments Integrate with our calendar/CRM Transfer calls to a human when necessary Save call information and client details Handle multiple conversations/scenarios professionally We prefer Retell AI or Vapi + Twilio, but we are open to your recommendation. Requirements: Proven experience building AI Voice Agents Experience with Retell AI and/or Vapi Twilio experience API/webhook and CRM integration experience Spanish-speaking developer strongly preferred Experience with GoHighLevel, healthcare, dental clinics or med spas is a big plus Timeline: We want the system LIVE within 7–10 days. We also want the developer to be available for ongoing maintenance/support after launch. All platform accounts, phone numbers, APIs, prompts and integrations must be created under or transferred to our ownership. IMPORTANT: Please include examples or demos of AI Voice Agents you have already built, preferably Spanish-speaking agents. Also tell us which platform you recommend (Retell/Vapi/etc.), your estimated delivery time, and your fixed price for the complete project. We are ready to hire and start immediately.