AI Voice Engine Developer

About the job

Design and implement real-time AI voice agent systems using Twilio for inbound and outbound calls. Develop backend services using FastAPI or Express.js for voice session control, call routing, and AI response management. Build and optimize real-time audio streaming pipelines using WebRTC, RTP, or Twilio Media Streams. Implement Large Language Models (LLMs) like GPT-4 / OpenAI Realtime for contextual AI-driven conversations. Manage session memory, call context, and message states using Redis or similar technologies. Handle call recording, transcription, and analytics pipelines. Collaborate with AI engineers and frontend teams (React/Next.js) to ensure full system integration. Focus on optimizing latency, reliability, and performance in low-latency environments. Strong proficiency in Python (asyncio, FastAPI) or Node.js (Express.js). Proven experience with Twilio Voice, WebRTC, or similar real-time communication frameworks. Experience integrating speech APIs (Whisper, Deepgram, Google Speech, OpenAI TTS, etc.). Working knowledge of LLM APIs (OpenAI GPT, Anthropic Claude, etc.). Experience with PostgreSQL, SQLAlchemy/SQLModel, and Docker. Familiarity with REST API design and backend architecture best practices. Ability to work independently, manage time efficiently, and meet project deadlines. If you are passionate about building intelligent, AI-driven voice systems and want to work in a dynamic, innovation-focused environment, this is the perfect opportunity for you.

Requirements

• AI voice solutions
• Twilio
• FastAPI
• Express.js
• WebRTC
• RTP
• Redis
• Python
• Node.js
• PostgreSQL
• Docker

Preferred Technologies

• AI voice solutions
• Twilio
• FastAPI
• Express.js
• WebRTC
• RTP
• Redis
• Python
• Node.js
• PostgreSQL
• Docker

About the company

Our client, a digital marketing agency that helps brands get noticed. Their services include Website Development, SEO, Social Media Marketing, PPC, Email Marketing, and Content Creation. What sets apart is their commitment to continuous learning, innovation, and teamwork. Every challenge is viewed as an opportunity to grow, and collaboration lies at the heart of everything they do.