| Project | What it is | Stack |
|---|---|---|
| Amazon-Clone · demo | Graduation thesis — multi-vendor marketplace with 12 recommendation models (LightGCN, two-tower, iALS, item2vec, cross-encoder, hybrid RRF ranker), wallet + payments, logistics | React, FastAPI, PostgreSQL, PyTorch, FAISS |
| Trello-Clone | Realtime kanban with drag-and-drop, Gantt + critical path, Butler automation, AI agent that proposes and executes actions | React, Express, Prisma, Socket.IO, pgvector, Vercel AI SDK |
| Document Intelligence Pipeline | Invoice intelligence: OCR → LLM extraction → code-side validation, RAG + guarded text-to-SQL, PII encrypted at rest, 600+ tests | FastAPI, pgvector, PaddleOCR, Next.js, QLoRA |
| OCR Scanning · Enterprise | Signs and stamps Vietnamese administrative documents; OCR only locates anchor coordinates. AES-256-GCM, Argon2id, MFA, HMAC-signed API | FastAPI, PaddleOCR, PyMuPDF, React, Vite |
| Dining Verse · demo | Online food ordering with live SSE kitchen display, modifiers, vouchers, flash sales | React, Express, Prisma, PostgreSQL, SSE |
| Weather Application · demo | Built during the AWS Vietnam cloud trainee programme | JavaScript |