Vector Nguyen

MoMo
AI Engineer

Welcome!

Hi, I'm Vector Nguyen, an AI Engineer specializing in multi-agent systems, LLMs, agentic voice, and production AI infrastructure. I studied Mechatronics Engineering at HCMUTE, then transitioned into AI — first at FPT Software building computer vision and NLP systems, then at FPT's AI Center working on multimodal RAG, multi-agent architectures, and multilingual AI solutions for enterprise clients.

I'm currently an AI Engineer at MoMo, where I designed and built Tro Ly An Choi — a zero-to-one AI chat assistant with 1 orchestrator and 6 domain agents, integrated across 10+ MoMo mini-app surfaces. The system has achieved over 100K monthly engaged users. I built 70+ agent tools covering cinema, airline, bus, train ticketing, and food ordering — all with deep payment integration into MoMo's checkout system.

Outside of work, I build Assistant Core (assistantcore.com) — a platform for deploying one AI assistant everywhere: web, IoT devices, wearables, and embedded widgets, with sub-1s voice pipeline, 7+ AI providers, agentic RAG, and white-label multi-tenant architecture. Feel free to explore my projects or reach out to collaborate!

new icon September 2025
Won Champions of Hacking Week at Tech Day MoMo 2025! 🏆
December 2024
Joined MoMo as an AI Engineer and built Tro Ly An Choi from zero — a multi-agent AI chat assistant (1 orchestrator + 6 domain agents) integrated across 10+ MoMo mini-app surfaces, reaching over 100K monthly engaged users. 🚀
April 2024
Moved to Ho Chi Minh city and work as AI Engineer at AI Center - FPT Software, focusing on LLMs, multi-agent architecture, and multimodal RAG! 🚀
January 2023
Received the Most Valuable Player 2022 award at FPT Software! 🏆
September 2022
Won Second Prize in the Quy Nhon AI Hackathon 2022, demonstrating innovative solutions in AI applications! 🥈
June 2022
Moved to Quy Nhon and started journey as AI Engineer at FPT Software Quy Nhon, receiving AI training at Central Talent Academy (CTA)! 🌊
June 2022
Achieved First Prize in Defend Graduation Project at HCMUTE, showcasing excellence in Mechatronics Engineering! 🎓
January 2022
Joined Hao Phuong Corp as a Back End Engineer, working on smart Farm management solutions! 💻
June 2021
Started learning Artificial Intelligence and building AI projects, beginning an exciting journey into machine learning and deep learning! 🤖
September 2018
Started Mechatronics Engineering journey at Ho Chi Minh City University of Technology and Education (HCMUTE)! 🎓

Product

Assistant Core assistantcore.com Jan 2024 – present

Deploy one AI assistant everywhere — web, mobile widgets, IoT devices, wearables, and embedded surfaces — from a single configuration.

  • Multi-provider: 7+ AI providers (OpenAI, Anthropic, Google, xAI, DeepSeek, AWS Bedrock, ElevenLabs, Soniox) — switchable without reconfiguration
  • Voice pipeline: sub-1s ASR → LLM → TTS streaming with VAD auto mode, barge-in interruption, and wake-word customization
  • Knowledge & tools: agentic RAG over documents, websites, and databases; MCP server integration; custom API tool calling
  • White-label multi-tenant: RBAC, custom domain routing, admin dashboard for config, user management, device pairing, and voice quota controls

Side Projects

A full list of side projects available at GitHub