Seeking Full-Stack Developer for AI-Powered Sales Training MVP (Real-Time AI Audio Conversations)

I’m looking for an experienced full-stack developer to build an AI-powered SaaS MVP that allows sales reps to practice sales conversations in real-time with AI-driven voice interactions.

The MVP will simulate a live buyer persona, where reps speak into their microphone, and an AI responds back in real-time using advanced speech-to-text, AI processing, and text-to-speech.

For reference, here's a link to a competitor in my industry: https://www.youtube.com/@SecondNatureAI

If you have experience with real-time AI voice applications, WebRTC, and OpenAI APIs, this is the perfect project for you.

"MVP Core Features"
- User Authentication – Google & Email sign-in (Firebase Auth)
- AI-Powered Sales Role-Play (Live Voice) – AI acts as a virtual prospect
- Real-Time Speech-to-Text (STT) – Converts rep's voice into text (OpenAI Whisper API)
- AI Response Generation – GPT-4 processes conversation dynamically
- AI Voice Response (TTS) – AI speaks back in real-time (ElevenLabs API)
- Low-Latency Audio Streaming – Real-time conversation flow (WebRTC or similar)
- User Dashboard – Track past conversations & performance feedback

"Tech Stack"
- Frontend: React (Next.js) + Tailwind CSS
- Backend: Node.js (Express.js or Firebase Functions)
- Database: Firestore (NoSQL)
- AI Services:

Speech-to-Text: OpenAI Whisper API (or Deepgram/AssemblyAI for faster response)
AI Response: OpenAI GPT-4 API
Text-to-Speech (TTS): ElevenLabs API (realistic AI voice)
- Real-Time Audio Processing: WebRTC (preferred) or alternative low-latency solution

"Ideal Developer Requirements"
- Proven experience with real-time AI voice applications
- Expertise in WebRTC & real-time audio processing
- Strong React (Next.js) & Node.js skills
- Experience integrating OpenAI APIs (GPT-4, Whisper, etc.)
- Familiarity with Firebase (Firestore, Auth, Functions)
- Bonus: Knowledge of Stripe (for payments in future versions)

"Timeline & Budget"
- Budget: $7,000 USD
- Timeline: 6-7 weeks max
- Priority: Fast, scalable MVP with smooth AI audio conversation flow

"How to Apply"
If you have experience in real-time AI voice applications, please submit your proposal with:
- Your past AI voice projects (WebRTC, STT/TTS, etc.)
- Estimated timeline & budget
- Your recommended approach for minimizing AI response latency

Also, when you apply...start your application with the word "bananas"

Looking forward to working with an experienced developer to bring LevellUp to life!

Thanks,
Ian