Vu Nguyen Tuan

Developed end-to-end customer-facing features for an AI-driven enterprise coaching platform using React, TypeScript, Node.js, and MongoDB, integrating LangChain/LangGraph for workflow orchestration and OpenAI/Anthropic models for intelligent, brand-specific interactions. Contributed to core architecture and design decisions, including rapid prototyping of UI/UX flows for end-user interfaces and admin dashboards. Owned integration of real-time voice and video features using 11labs and LiveKit, enhancing frontline team upskilling modules for global enterprise clients. Scaled applications from pilot builds to production deployments, optimizing for thousands of users while maintaining fast iteration cycles.

Designed and deployed AI voice agents, chatbots, and RAG systems using LangChain, OpenAI, and FastAPI. Integrated automation workflows with n8n, Zapier, and Make to handle complex business logic and reduce repetitive tasks. Built voice assistants with Vapi and Retell AI for lead qualification, customer service, and booking calls. Developed custom retrieval systems using Pinecone, ChromaDB, and Weaviate to improve knowledge accuracy and model performance. Collaborated with clients from idea and prototyping through production and monitoring, delivering production-ready systems that cut manual work and improved conversions and customer experience.