Hearth AI is seeking a top-tier Voice AI prompt specialist for a high-impact consulting engagement. We are refining the user experience for our fast-growing flagship AI receptionist. We are looking for a top-tier, freelance Prompt Engineer who specializes in voice agents to help us achieve a more natural, effective, and human-like conversational flow. This is a short-term consulting engagement. You will work directly with our product team and CEO to: Audit & Review: Analyze our current prompt library and conversation flows, identifying areas for improvement in clarity, tone, and efficiency.
Design & Engineer: Design, test, and refine write new, experimental prompts for various scenarios (e.g., call routing, message taking, appointment scheduling, handling ambiguity, repeat callers).
Test & Optimize: Help us structure A/B tests to measure the performance of new prompts against existing ones. This is the right role for you if: You have at least 1-2 years of professional experience focused specifically on prompt engineering and conversational design for voice-first AI products (e.g., AI assistants, advanced IVR, voice-controlled applications). Deep understanding of the nuances of spoken language vs. written language (e.g., handling pauses, interruptions, and non-linear conversations). Ability to define and embody a specific persona/tone of voice for an AI agent. Your portfolio demonstrates a deep understanding of Voice User Interface (VUI) design principles. We must see examples of your work for voice agents. You have a sophisticated understanding of modern prompt engineering techniques (e.g., chain-of-thought, few-shot learning, ReAct) and how to apply them to spoken dialogue. You are results-obsessed and have direct experience measuring and improving conversational AI performance through A/B testing and data analysis. You have a "good ear" for what makes a conversation feel natural and can write dialogue that leverages the high-fidelity output of platforms like ElevenLabs. Bonus points for: Current or previous experience at a leading voice-first company Experience with workflow automation tools (n8n, Zapier) and an understanding of how prompts fit into an API-driven system. Excellent communication skills and the ability to articulate the rationale behind your prompt design choices. How to Apply: Please begin your proposal with the word "HEARTH" so we know you've read the details. In your proposal, please include: A link to your portfolio or 2-3 specific examples of voice-related prompt engineering or conversational design work. A brief paragraph on your experience and philosophy for creating effective prompts for a voice-based AI receptionist to achieve desired user or business outcomes.
Unity Mobile Police Radar Patrol Game Category: 3D Modelling, Android App Development, C#, Programming, Game Design, Game Development, Game Testing, IPhone, Mobile App Development, Unity, Unity 3D Budget: $250 - $750 USD
11-May-2026 21:54 GMT
Traditional Kitchen & Pantry Visualisation Category: 3D Architecture, 3D Design, 3D Modelling, 3D Rendering, 3D Visualization, 3ds Max, Interior Design, SketchUp Budget: $30 - $250 USD
Business Analytics Interview Project Category: Business Analytics, Business Intelligence, Data Analysis, Data Extraction, Data Visualization, Database Administration, Excel, Microsoft Access, Power BI, SQL Budget: ₹600 - ₹1500 INR
11-May-2026 21:40 GMT
Web Scraping Expert! Category: BeautifulSoup, Data Collection, Data Entry, Data Extraction, Data Mining, Data Processing, Excel, Python, Scrapy, Web Scraping Budget: ₹600 - ₹666 INR
11-May-2026 21:40 GMT
Long-Term Indian Marketplace Listings Category: Amazon, Content Writing, Data Entry, ECommerce, Internet Marketing, Inventory Management, Keyword Research, Market Research, SEO, Web Search Budget: ₹12500 - ₹37500 INR
Webflow Business Site Development Category: Animation, CMS, Graphic Design, HTML, UI / User Interface, User Interface / IA, UX / User Experience, Web Design, Webflow Budget: $750 - $1500 CAD