Voice AI Prompt Engineer

This is a rare chance to become the first engineer on a high-potential AI project in the healthcare space — the kind of opportunity where you help shape not just a product, but possibly a company. Imagine being the first developer behind what could become the next game-changing platform in healthtech.

You’ll work directly with seasoned founders who have successfully built and scaled profitable businesses in the healthcare industry for over a decade. The vision is clear, the domain expertise is real, and the commitment is strong. While this is an early-stage build, it’s backed by proven operators who know how to take products from zero to revenue.

The initial engagement is a 3-month contract to build the MVP, with the possibility to extend to 6 months — and ideally evolve into a full-time leadership role as the product gains traction and funding. If you’re excited by ownership, fast iterations, and solving real-world problems with AI, this is your moment.

Responsabilities

• Architect and build an end-to-end Voice AI workflow.
• Integrate telephony services like Twilio or Asterisk for call routing and orchestration.
• Set up STT/TTS pipelines using Google, AWS Transcribe Medical, or Azure speech APIs.
• Use large language models (like GPT-4) with prompt chaining to drive call logic.
• Implement fallback and human-in-the-loop workflows.
• Develop robust backend services in Ruby (on Rails) or Python with REST/gRPC APIs and database integrations.
• Ensure HIPAA-compliant handling of call logs, transcripts, and metadata.
• Collaborate directly with the founders in an async-first team, with weekly syncs.

Requirements

• 3+ years of voice/telephony development (e.g., Twilio, Asterisk)
• Experience with speech APIs (Google, AWS Transcribe Medical, Azure)
• Proficiency in LLM usage, prompt engineering, and API integration
• Backend development in Ruby (on Rails) or Python; REST/gRPC; DB integrations
• Familiarity with human-in-the-loop systems and fallback logic
• Excellent communication: ability to document, write clean code, and mentor

Nice to Have

• Experience with RCM billing or payer/provider workflows
• Strong understanding of healthcare interoperability – FHIR/HL7
• Familiarity with AWS HIPAA stack, Terraform, and security best practices
• Experience deploying to SOC2/HIPAA-compliant infrastructure

Our Recruitment Process

• Video Interview
• 20-minute take-home skills test
• 30-minute Call with the Recruiter (project, benefits, etc.)
• Interviews directly with the client (depending on the project the # of interviews may vary, this may include an assessment)
• Final Offer.

• Work remotely Monday - Friday, 40 hours a week (no weekends)
• Vacation: 10 business days a year
• Holidays: 5 National Holidays a year
• Company Holidays: 5 Company Holidays a year (Christmas Eve, Christmas Day, New Year's Eve, New Year's Day, Zipdev Day)
• Parental Leave
• Health Care Reimbursement
• Active Lifestyle Reimbursement
• Quarterly Home Office Reimbursement
• Payroll Deduction Purchase Plans
• Longevity Bonus
• Continuous Learning Bonus
• Access to Training and Professional Development Platforms
• Did we mention it's REMOTE?!!

One of our core values at Zipdev is "Be authentic." that's why we encourage you to answer the application form in your own words; we are interested in getting to know you, not a digital assistant.

Wondering how our remote environment or our payment method work? We've put together some helpful answers in our FAQs at the bottom our our career site. Take a look and let us know if you have any other questions!