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AI Calling Agent Developer (Vapi, Retell, Twilio, CRM)

Search - API Integration · local_filter_skipped · UID ~022074943848862292729

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Job Details

Budget $25.00 - $47.00/hr
ExperienceExpert
DurationUnknown
Weekly hoursUnknown
Client countryUnknown
ProposalsUnknown
InterviewingUnknown
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First seenWed, Jul 8, 2026 8:22 PM
Last seenThu, Jul 9, 2026 10:16 PM

Description

We're looking for an experienced AI Voice Agent Developer to build and optimize a conversational calling bot for our business. You'll be responsible for designing, developing, and deploying a production-ready voice automation system that handles inbound/outbound calls, integrates with our CRM, and delivers a natural, human-sounding voice experience. Responsibilities: Build and configure AI voice agents using Vapi.ai or Retell AI Set up call flows, prompts, and function/tool calling for real-world use cases (appointment booking, lead qualification, support, etc.) Integrate voice agents with Twilio for inbound/outbound calling Connect the voice bot to our CRM (HubSpot/Salesforce/GoHighLevel or similar) for bidirectional data sync Select and fine-tune voice over / TTS providers for natural, human-like speech (e.g., Cartesia, Deepgram, ElevenLabs, Rime) Build backend services using Python and FastAPI to handle business logic, auth, and data persistence Develop a React-based dashboard/admin panel for monitoring calls, managing agents, and viewing analytics Implement automation workflows to trigger calls, follow-ups, and CRM updates Test, debug, and optimize latency, turn-taking, and conversation quality Deploy and maintain the system in a production environment Requirements: Proven experience with Vapi.ai, Retell AI, or similar voice agent platforms Strong hands-on experience with Twilio (Programmable Voice, SIP trunking a plus) Solid backend skills in Python / FastAPI (async, RES

Skills

OpenAI API Twilio API API API Integration AI Agent Development JavaScript AI Development +1

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