Hi, I'm Tuấn

Full-stack & AI Development. I build and deploy web applications, AI retrieval systems, and mobile apps.

About

I study Software Engineering at Vietnam-Korea University of Information and Communication Technology (2022-2026, GPA 3.1/4). I build full-stack websites, integrate APIs and AI capabilities, and deploy applications to the cloud. At Safehorizons, I developed React Native interfaces for SpeakFast, an AI-powered English conversation app. My graduation project is a Vietnamese traffic-law AI assistant with hybrid retrieval, PDF-page citations, and evaluation.

Work Experience

Developed SpeakFast mobile interfaces using React Native, Expo, and TypeScript. Integrated REST APIs for authentication, voice recording, audio uploads, AI responses, transcripts, and grammar feedback. Implemented login, registration, protected navigation, call, feedback, and grammar-practice screens. Handled timeouts, server errors, loading states, and fallback transcripts. Expanded the app to 20 real-life conversation scenarios and improved reusable UI components for Android and iOS.

Education

Vietnam-Korea University of Information and Communication Technology

Software Engineering - GPA: 3.1/4

2022 - 2026

Skills

Python

TypeScript

JavaScript

React Native

Expo

REST APIs

RAG

LLM Integration

LangGraph

ONNX Runtime

Git

Cloudflare

My Projects

Check out my latest work

I've worked on a variety of projects, from simple websites to complex web applications. Here are a few of my favorites.

Website

Vietnamese Traffic Law AI Assistant using RAG

Graduation project - In progress

Built a Vietnamese traffic-law RAG assistant with follow-up chat and PDF-page citations. Developed PDF/OCR cleaning and legal chunking workflows. Combined BM25 and dense retrieval with a fine-tuned INT8 ONNX reranker for CPU inference. Created gold-standard benchmarks and regression tests for retrieval, citations, refusal handling, and prompt injection.

RAG

BM25

Dense Retrieval

Reranking

INT8 ONNX

PDF / OCR

Evaluation

Contact

Get in Touch

Have a project in mind or want to connect? Email me at contact@tuanpq.com and I'll get back to you as soon as I can.