Voice AI Developer

BSG is a Communication Platform as a Service (CPaaS) that helps businesses connect with customers across multiple channels through flexible, cloud-based communication solutions. We are looking for a strong backend/software engineer who can design and build scalable production Voice AI systems, with a focus on distributed systems, real-time processing, asynchronous architecture, streaming, and low-latency voice interactions. Current tech stack: Python, FastAPI, Django, RabbitMQ, Memcached, JavaScript, REST, WebSocket, AI/Voice APIs. Your Responsibilities Design and develop production-grade Voice AI systems and backend services. Build the full voice pipeline: Audio STT/ASR LLM TTS Audio . Integrate external and self-hosted AI/Voice models and APIs . Build real-time streaming services for bidirectional voice conversations. Work with streaming STT, LLM and TTS and optimize end-to-end latency and time-to-first-audio. Implement conversation state, context management and interruption/barge-in handling . Integrate Voice AI with telephony, telecom and business systems . Develop APIs and asynchronous, event-driven services using message brokers. Ensure high performance, reliability, scalability and observability of production systems. Monitor and analyze latency, recognition quality, voice quality, errors and conversation stability. Design solutions capable of supporting high volumes of concurrent calls . Participate in architecture decisions, code reviews and technical improvements ac