Hitish S.

🚀 AI/ML ENGINEER | VOICE BOTS, AGENTIC AI & AGENT ORCHESTRATION With 13+ years in software engineering and 4+ years architecting autonomous AI systems, I build production-grade multi-agent workflows, real-time voice bots, and the scalable cloud backends required to run them at scale. Most AI projects stall between a prototype and production. I bridge that gap—turning complex LLM architectures into reliable, low-latency, revenue-generating applications. ⚡ AGENTIC WORKFLOWS & VOICE AI 🔹 Multi-Agent Orchestration: Autonomous agent pipelines (Planner ➔ Parallel Tool Executor ➔ Synthesizer) using LangGraph and LlamaIndex across complex APIs. 🔹 Real-Time Voice AI: Ultra-low-latency conversational voice agents built with Gemini Live API, Azure OpenAI Realtime, Pipecat, WebRTC, and Twilio Media Streams. 🔹 Governed NL2SQL & Data Agents: Self-service analytics with automated schema retrieval, few-shot generation, and multi-tenant SQL validation to prevent data leakage. 🔹 Multi-Tenant Enterprise RAG: High-throughput semantic retrieval using Elasticsearch and PostgreSQL (pgvector) with strict tenant isolation. 🔹 Dynamic Model Routing: Task-aware routing across GPT-4o, Claude, and Gemini Flash to minimize latency and token expenditure. ⚙️ PRODUCTION SAAS & BACKEND ENGINEERING A multi-agent system is only as reliable as its backend. I build the infrastructure that keeps it operational under load: 🔹 Scalable Backends: High-concurrency Node.js/Express and Python (FastAPI) microservices backed by PostgreSQL. 🔹 Data Orchestration: Dagster ETL pipelines for continuous POS sync, transaction reconciliation, and automated vector indexing. 🔹 Serverless Cloud: Event Grid–triggered Azure Functions for real-time unstructured document parsing (PDF, CSV, JSON). 🔹 Payments & Integrations: Deep Stripe billing integration, multi-carrier shipping APIs (Shippo), and omni-channel messaging (WhatsApp Business API, Twilio). 🛠️ CORE TECH STACK 🔹 AI & Agents: LangGraph, LlamaIndex, Google ADK, Pipecat, Mem0 🔹 Voice & Audio: WebRTC, Twilio Media Streams, Gemini Live, Azure Realtime API 🔹 Languages & APIs: Python, Node.js, Express, FastAPI, WebSockets 🔹 Databases & Vector: PostgreSQL (pgvector), Elasticsearch, Redis (HNSW), Neo4j 🔹 Cloud & DevOps: Azure (Container Apps, Functions, Service Bus), Docker, Dagster 🤝 WHY WORK WITH ME ✔️ End-to-End Ownership: From agent logic to production APIs, database schemas, security, and cloud deployment. ✔️ Latency & Cost Optimized: Engineered for execution speed, predictable token budgeting, and reliable error fallbacks. ✔️ Battle-Tested Production Experience: Proven experience delivering software handling live transactional traffic in e-commerce, retail, and healthcare. 📩 Ready to deploy your agentic workflow or voice AI system? Send a message with your project details or schedule an intro call.