Now · AI Engineer Trainee at PMAX
Trương Hoàng
Ngọc Nhi
Final-year Computer Science student (UIT–BCU) building applied AI systems — RAG, hybrid search and AI security — for fintech and ad-tech.
hi, I'm Nhi01 · About
Hi, I'm Nhi.
I'm Nhi, a final-year Computer Science student at UIT–VNU-HCM in partnership with Birmingham City University.
I build retrieval and AI systems where wrong answers are costly: due-diligence answers at a payment company, ad-policy and brand-protection audits at an ad-tech firm, and SQL-injection detection in my own projects.
I design for the human in the loop — the model drafts, people decide.
02 · Experience
Where I've worked
08/2026 – Present
PMAX (opens company website)
AI Engineer Trainee
- Contribute to AuditVista and GrowSure, which scan Facebook, TikTok and Google Ads for policy violations.
- Built full-stack APIs that pull creatives from connected ad accounts for automated model review.
- Engineered an automated AI auditing pipeline for 42 Ford Vietnam dealers: detects counterfeit websites for takedown and tracks unauthorised out-of-territory ad campaigns.
- Developed automated domain-reconnaissance workflows to uncover who owns illicit sites, replacing manual checks.
04/2026 – 07/2026
VietUnion (Payoo) (opens company website)
Business Analyst Intern · AI Team
- Built an on-premise RAG assistant that drafts due-diligence answers; wrote the SRS and implemented the full stack (FastAPI, Next.js, PostgreSQL/pgvector).
- Implemented hybrid retrieval (embeddings + BM25, fused with RRF); routed low-confidence queries to LLM drafts for human review.
- Integrated a local LLM (Ollama) and the Gemini API so users can choose the drafting model.
- Completed RFPs for enterprise clients; wrote a payment-gateway integration manual with a bilingual developer portal.
03 · Selected work
Projects
Regex → Bi-LSTM → Gemini
case studyAI-Shield
A hybrid SQL-injection firewall that escalates from cheap rules to a local model to an LLM only when needed.
Spring Boot · FastAPI · TensorFlow (Bi-LSTM) · Gemini API · PostgreSQL
BM25 + Vector → RRF → LLM draft
case studyinternal · overview onlyDDQ Knowledge Assistant
An on-premise RAG assistant that drafts due-diligence answers for analysts to review.
FastAPI · Next.js · PostgreSQL + pgvector · SQL Server · Ollama · Gemini API
Survey → REST API → Charts
Credit Scoring Dashboard
A multi-step survey with REST API integration and interactive charts that visualise the factors behind a credit score.
Next.js 15 · React 19 · TypeScript · Tailwind 4 · Chart.js
Staff · Timesheet · Payroll
HustleFlow HRM
University project. I led front-end development of the employee, timesheet and payroll modules.
Vue 3 · Vuetify
More on GitHub.
04 · Toolbox
Skills
- AI / LLM
- RAGHybrid search (BM25 + vector)EmbeddingsTensorFlow / KerasGemini APIOllama
- Backend & data
- Python (FastAPI)Java (Spring Boot)PostgreSQL + pgvectorSQL Server
- Frontend
- TypeScriptReactNext.jsVue 3
- Tools
- GitPostmanSRS / PRD writing
05 · Education
Study
2024 – 2027 (expected)
BSc (Hons) Computer Science
University of Information Technology – VNU-HCM, with Birmingham City University
- Average mark 79.38% (latest semester 83.83%), UK grading scale.
- Modules: Mobile & Wearable App Development, UX Design, AI & Machine Learning, Cloud Computing.
Honors & activities
- International Talent Student Scholarship
- UIT Academic Encouragement Scholarship (Semester 2, Year 2)
- President, Photography Club (20 members)
Languages
- English (IELTS 6.0)
- Vietnamese (native)