Senior Conversational AI & Prompt Engineer

This role is open to candidates based in LATAM, Africa, and Eastern Europe. Please note that as this role supports U.S.-based clients, candidates must be available to work during U.S. business hours aligned with the client’s time zone.

Our client is a pioneering telehealth company specializing in personalized weight loss programs using GLP-1 medications. They deliver medically supervised, data-driven solutions designed to help individuals achieve sustainable health outcomes through innovation, safety, and continuous patient support. By combining healthcare expertise with technology, they are reshaping the weight management experience through personalized digital care.

LOCATION

Fully Remote (Work from Home) | 9 AM – 5 PM EST

ROLE OVERVIEW

The Senior Conversational AI & Prompt Engineer will design, optimize, and maintain conversational experiences across voice and chat-based AI systems, ensuring natural, accurate, and clinically aligned patient interactions. This role requires deep expertise in prompt engineering, voice AI platforms, and conversational logic, with a strong focus on creating seamless digital experiences across multiple patient touchpoints in a telehealth environment.

KEY RESPONSIBILITIES

PROMPT ENGINEERING & OPTIMIZATION

- 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.

PLATFORM & TECHNICAL EXECUTION

- 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 l...