Open to AI Engineer opportunities

Hi, I'm Phuoc Sang.

>_

I build intelligent systems with Large Language Models — from retrieval-augmented chatbots to fine-tuned domain experts. Currently an AI R&D Intern at CodePresso and a Research Assistant at the NLP-KD Lab, TDTU.

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profile.py 
class AIEngineer:
    name     = "Tran Phuoc Sang"
    focus    = ["LLM", "RAG", "NLP"]
    stack    = ["PyTorch", "LangChain"]
    learning = True

    def mission(self):
        return "Build AI that matters"
LLM
RAG
PyTorch
01 · About

A bit about me

TS

Tran Phuoc Sang

Computer Science Student · AI Researcher

As a fourth-year student passionate about AI, I am constantly seeking opportunities to apply and expand my knowledge in machine learning and deep learning. My goal is to contribute to developing impactful AI solutions that drive organizational success.

Education

Ton Duc Thang University — GPA 8.1

Phone

0347763291

English

Aptis B2 (L: C1 · S: B1 · R: B2 · W: B2)

02 · Skills

What I work with

AI & Machine Learning

Large Language Models RAG Fine-tuning · LoRA PEFT PyTorch LangChain LangGraph Hugging Face

Programming & Databases

Python PostgreSQL Qdrant Git & GitHub

Web & Deployment

Streamlit Docker REST APIs
03 · Experience

Where I've worked

AI R&D Intern

CodePresso · Ho Chi Minh City

Jun 2025 — Present
  • Develop and enhance an automatic generation system to efficiently respond to the consumption cycle of assessment content.
  • Enhance the scoring function for a reliable competency assessment service, assessing logic, code quality, and output.
  • Develop an automatic error description generation function for efficient learning.
  • Reduce service costs through the introduction of open-source LLM and sLLM models.
  • Implement a code interview performance and analysis system.
Python PyTorch LangChain LangGraph LLM Hugging Face

Research Assistant

NLP & Knowledge Discovery Lab, TDTU · Ho Chi Minh City

Jan 2025 — Present
  • Conducting research on advanced RAG techniques for legal document analysis.
  • Fine-tuning large language models for domain-specific question answering.
  • Developing and maintaining data processing pipelines for NLP tasks.
Python PyTorch RAG NLP LoRA Hugging Face
04 · Projects

Things I've built

Fine-tune Qwen2.5-3B for Legal Chatbot

Fine-tuned Qwen2.5-3B on a Vietnamese legal corpus and QA dataset using the Unsloth library combined with LoRA.

Python PyTorch Hugging Face LoRA
🤗 Hugging Face

Legal Chatbot with Advanced RAG

Advanced legal chatbot for Vietnamese law using RAG with hierarchical document retrieval and a Streamlit interface.

Python PostgreSQL Qdrant Streamlit LangChain
GitHub

Fine-tune Vistral-7B for Travel Chatbot

Loaded Viet-Mistral-7B-Chat in 4-bit precision and applied LoRA to fine-tune on a Vietnamese travel QA dataset generated by Gemini-1.5-Pro.

Python PyTorch Hugging Face LoRA PEFT
GitHub
05 · Publications & Achievements

Research & recognition

Publications — coming soon

Scientific publications will be updated here soon.

Top 2 — Olympic AI HCMC 2025

Runner-up at Olympic AI Ho Chi Minh City 2025, held at HUTECH University.

06 · Contact

Let's work together

I'm currently looking for AI Engineer opportunities. Whether you have a question or just want to say hi — my inbox is open.

Email

transhack09@gmail.com

Phone

0347 763 291

GitHub

PhuocSang07
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Hugging Face

phuocsang

LinkedIn

phuocsang2412