AACA — AI Contact-Center Platform
Aug 1, 2025
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1 min read
Project Details
01
Microservices Architecture
Separated a latency-sensitive realtime voice edge from a stateful business control plane for independent scaling, deployment, and ownership.
02
Low-Latency Voice Edge
Developed FastAPI and WebSocket services for streaming call audio and realtime agent interactions.
03
Telephony Integration
Bridged Twilio Media Streams to the OpenAI Realtime API with native G.711 u-law audio to minimize transcoding overhead.
04
Speech Performance
Delivered bidirectional speech-to-speech interaction with sub-second voice AI latency.
05
RAG & Tool Calling
Used OpenAI embeddings and Milvus retrieval with tools for knowledge search, customer verification, and ticket workflows.
06
Secure Operations
Enforced identity verification before sensitive tool operations inside live voice sessions.
07
Agent Handoff
Designed Redis pub/sub channels for cross-instance WebSocket delivery, call assignment, transfer, and human handoff coordination.
08
Deployment Stack
Containerized MongoDB, Redis, Milvus, MinIO, and PostgreSQL with Docker Compose for Cloud Run horizontal scaling.
Tech Stack
Voice & AI
Python
GCP
GenAI
LLMs
Agents
RAG
OpenAI Realtime API
Twilio
WebSockets
Backend & Data
FastAPI
Milvus
Redis
MongoDB
JWT
Deployment
Docker
Docker Compose
MinIO
Postgres
Cloud Run
Authors
Lead Engineer — GenAI / Agentic AI & Applied ML
Lead Engineer with 5 years of hands-on experience developing and deploying GenAI, RAG, Agentic AI, and deep learning systems from scratch. I build production-grade AI platforms for realtime voice interaction, enterprise knowledge retrieval, regulatory search, and automated finance analysis. My work spans NLP, autonomous driving, computer vision, and Camera-LiDAR-Radar fusion, with a focus on reliable architecture, model optimization, and scalable data pipelines.
Stack: Python, GCP, GenAI, LLMs, Agents, Docker, FastAPI, Cloud SQL, Google ADK, Vertex AI, Agent Engine, Cloud Run, OpenAI Realtime API, WebSockets, Redis, MongoDB, Milvus, JWT, Docling, BM25, ModernBERT, vLLM, and FAISS.