Role overview
Senior Voice AI Engineer β Retell AI (Part-Time, Remote)
π Remote (US-based) | β± Part-time | π₯ Contractor or Part-time Employee
About Aura 300
Aura 300 is an AI-native revenue platform built for the global salon industry. Our AI voice agents handle front desk automation, missed call recovery, client retention, and new client acquisition for salons across Australia, the US, and the UK. 50+ salons, growing fast, and expanding into the US.
We're a small, high-conviction founding team that moves quickly and builds things that actually work in the real world β not just in demos.
The Role
We're looking for a Senior Voice AI Engineer who is as comfortable architecting elegant prompt systems as they are shipping production-ready voice agents. You'll own the technical quality of our AI voice agents.
This is a hands-on role. You'll be setting the standard, reviewing work, and shipping alongside your team β not just directing from a distance.
What you'll work on
- 3+ years in prompt engineering or conversational AI, with at least 1+ year specifically in voice AI
- Hands-on production experience with Retell AI β this is non-negotiable
- Strong working knowledge of ElevenLabs and Twilio
- Deep understanding of multi-turn conversation design, interruption handling, and real-world telephony constraints
- Experience integrating voice agents with third-party APIs and CRMs
- A portfolio or examples of live voice agents you've built and deployed β we'll ask to hear them
- Comfortable in a fast-moving startup environment where you ship, iterate, and own outcomes
What we're looking for
- Experience in the salon, hospitality, or service business vertical
- Familiarity with Vapi or Bland AI
- Prior experience managing or mentoring junior engineers