Prompt Engineer at Scale Army Careers

Posted on

LATAM
Africa
Eastern Europe
Remote

Industry: Staffing and Recruiting

Job Type: Contract

Experience Level: Senior

Job Description

The Senior Conversational AI & Prompt Engineer will design, optimize, and maintain conversational experiences across voice and chat-based AI systems for a telehealth client, ensuring natural, accurate, and clinically aligned patient interactions. This contract role is remote for candidates based in LATAM, Africa, and Eastern Europe, with availability during U.S. business hours.

Responsibilities

  • 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.
  • Apply direct-to-consumer experience to tailor conversational flows for telehealth users, balancing empathy, medical guardrails, and conversion objectives.
  • Maintain a consistent AI persona across SMS, web chat, and phone interactions to create a unified concierge-style patient experience for GLP-1 users.
  • Partner with clinical, product, and engineering teams to align AI behavior with medical protocols and business goals.
  • Generate performance reports, analyze transcripts and call logs, and recommend improvements based on user feedback and behavioral data.
  • Monitor trends in speech-to-text, text-to-speech, and LLM reasoning to identify opportunities for innovation and competitive differentiation in telehealth.

Requirements

  • 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.
  • Strong analytical ability to evaluate conversational performance and optimize outcomes.
  • Deep understanding of conversational design differences between spoken and written language.
  • Ability to troubleshoot technical constraints related to real-time voice latency.
  • High attention to detail and creativity in designing natural user experiences.
  • Proactive problem-solving mindset within regulated telehealth environments.
  • Adaptability in fast-moving product and healthcare settings.
  • Based in LATAM, Africa, or Eastern Europe, with availability 9 AM–5 PM EST.
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