About this role

Design, develop, and refine high-performance prompts for Voice AI agents and chatbots, ensuring clarity, engagement, and alignment with the brand’s clinical voice.
Debug and optimize prompts to improve response accuracy, natural language flow, and user satisfaction across both text and voice interactions.
Manage context continuity so AI systems maintain patient history and conversational state across chat-based and voice-based interactions.
Use Retell AI and Vapi for real-time voice interactions, focusing on low-latency responses and natural conversational turn-taking.
Utilize orchestration tools such as LangChain, OpenAI Assistants API, or similar frameworks to build logic-driven conversational experiences.
Implement SSML and phonetic optimization for voice applications, while using Markdown and structured data for chat interfaces.

5+ years of experience in prompt engineering across voice AI and text-based conversational systems.
Proven experience with Retell AI and Vapi.
Experience with chat orchestration frameworks such as LangChain, Intercom, OpenAI Assistants API, or custom LLM wrappers is highly preferred.
Direct-to-consumer experience, particularly in health-related support or high-intent customer journeys.
Experience running A/B testing on prompts to optimize conversion and information accuracy.

Senior Conversational AI, Prompt Engineer

Key skills