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Job Opportunity: Full-Stack AI Engineer for Voice Agent Development We’re looking for an experienced AI & Full-Stack Engineer to help us build a production-ready Voice Agent. The goal is to integrate real-time telephony with conversational AI, delivering seamless natural voice interactions. Required Skills Twilio – Call handling, SIP/WebRTC integration, real-time media streams. Rasa – Conversational AI (NLU, dialogue management, intent/entity handling). Google Cloud Speech-to-Text & Whisper – Speech recognition pipelines with fallback/latency optimization. React – Frontend dashboard/agent console with real-time updates. Express/FastAPI – Backend API for orchestration, authentication, and middleware. What You’ll Build A Voice AI Agent that receives calls via Twilio, transcribes audio in real-time (Google STT + Whisper), and routes text to Rasa for intelligent responses. A backend service (Express or FastAPI) to manage conversation orchestration, retries, and logging. A React frontend to visualize conversations, logs, and usage metrics. Nice to Have Experience with Docker/Kubernetes for deployment. Knowledge of vector DBs (Pinecone, Weaviate) for RAG-style context injection. Familiarity with OpenAI/Anthropic APIs for fallback LLM responses. NOTE: if you don’t have past working links, you will be ignored. Please share your portfolio/examples (applications without relevant examples will not be considered).
Project ID: 39718647
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6 freelancers are bidding on average $36 USD/hour for this job

Hello Daniel, I am excited about the opportunity to work as a Full-Stack AI Engineer for your Voice Agent development project. With over 10 years of experience in AI and web development, I specialize in integrating real-time telephony with conversational AI, ensuring seamless natural voice interactions. My expertise includes Twilio for call handling and SIP/WebRTC integration, Rasa for conversational AI, and Google Cloud Speech-to-Text for optimized speech recognition. Additionally, I have a strong background in building dynamic frontends using React and creating robust backend solutions with Express and FastAPI. Having worked on similar projects, I can deliver a production-ready Voice AI Agent that meets your specifications. I would be happy to share relevant examples from my portfolio that demonstrate my capabilities. Thanks, Oleh
$25 USD in 27 days
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Dear Hiring Manager, I am a skilled AI Engineer with expertise in Twilio, Rasa, Google Cloud Speech-to-Text, React, and Express/FastAPI. I am excited about the opportunity to develop a Voice AI Agent that seamlessly integrates telephony with conversational AI for natural voice interactions. I have experience in building backend services for conversation orchestration, as well as frontend dashboards for real-time updates. Additionally, I am familiar with Docker/Kubernetes for deployment and have knowledge of vector DBs for context injection. I am confident in my ability to deliver a high-quality solution that meets your project requirements. Please find relevant examples in my portfolio. Thank you for considering my proposal.
$50 USD in 40 days
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Hello Daniel, I am Vishal Maharaj, a seasoned professional with 20 years of expertise in FastAPI, OpenAI, Conversational AI, Docker, and Kubernetes. I have carefully reviewed the requirements for the Full-Stack AI Engineer for Voice Agent project. I propose to develop a robust Voice AI Agent that seamlessly integrates Twilio for call handling, Rasa for conversational AI, and Google Cloud Speech-to-Text for speech recognition. The solution will include a backend API (Express/FastAPI) for orchestration and a React frontend for real-time visualization. Additionally, I will leverage my experience in Docker/Kubernetes for deployment and knowledge of vector DBs for context injection. I am eager to discuss this project further and explore how we can collaborate effectively. Cheers, Vishal Maharaj
$50 USD in 40 days
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Hi, I’ve been working with Docker, Twilio, Kubernetes, FastAPI, OpenAI, Conversational AI, AI Development, Vector Databases for over 7 years, and I love helping people bring their ideas to life. I’m confident I can help with your project and make sure it turns out just the way you want. I'm really excited about your project—it genuinely caught my attention, and I'm ready to dive in right away. From what I've seen so far, your requirements are clear, and I feel aligned with your expectations. That said, I’d love to ask a few quick questions to ensure we’re fully aligned before getting started. I’m excited to work with you and make this project awesome! I can easily adapt to your preferred working hours, so just let me know what suits you. Talk soon, Cheers Liam
$40 USD in 40 days
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