AI Voice Developer

We are seeking an on-site Mid-Level Voice AI Developer with 5 to 8 years of experience to join our team in Dallas. In this role, you will own the technical execution of our voice automation stack, focusing on building high-performing inbound/outbound sales/scheduling and customer service agents. Deep hands-on production experience with Retell AI is requirement or any other Voice Agents . You will design and implement the logic, state machines, and API integrations that allow our voice agents to resolve client issues, handle real-time calendars, and drive outbound growth initiatives.

Key Responsibilities

• Retell AI Agent Architecture: Build, test, and deploy production-grade inbound and outbound voice agents using the Retell AI / Voice Agents platform, SDKs, and custom LLM WebSockets.
• Sales & Scheduling Integration: Connect voice agents directly to scheduling APIs (e.g., Cal.com, Calendly, custom CRMs and apps) to allow agents to pull availability, book appointments, and process cancellations live on a phone call.
• Low-Latency Loop Optimization: Fine-tune Retell setups to achieve ultra-low latency, minimizing dead air and handling human interruptions naturally during fluid sales and support conversations.
• Data & CRM Synchronization: Ensure call outcomes, reservation data, and customer notes are instantly and accurately synced with our internal databases and CRM via webhooks and REST APIs.
• Prompt & State Engineering: Write, test, and refine structured LLM prompts to enforce business compliance, overcome customer objections in sales flows, and handle edge cases gracefully.
• Analytics & Quality Monitoring: Analyze Retell call logs and audio records to track key performance indicators (KPIs) like call resolution, booking conversion rates, and latency drops.