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Tay Za

Deep Dives & Systems

A look under the hood. Beyond the UI, I love exploring scalable architectures and building real-world solutions.

Live in Production

Fintech / Automation
OPERATIONAL

Mobile Top-up Automation (MyanTop)

Next.js 15SupabasePostgreSQLNext-Intl
150k+API calls per month
2.4k+Active users
<0.1%Reported error rate
Wallet RPC locksBalance handling
Mobile Top-up Automation (MyanTop) Preview
P2P Marketplace / Security
OPERATIONAL

SecureXchange (Baht-Kyat Swap)

LINE LIFF SDKDeno Edge FunctionsPostgres CDCTypeScript
Real-time CDC feedRate updates
LINE push notificationsNotifications
Server-sideRate calculation
0% reportedTransaction spoofing
SecureXchange (Baht-Kyat Swap) Preview
F&B SaaS / Multi-Tenant
OPERATIONAL

MenuGo (QR Dine-in Ordering)

Fastify v4React 19 + VitePostgreSQL 16 + DrizzlePostgres RLSTanStack Query v5SSE Realtime
HMAC-SHA256QR security
Realtime via SSEKitchen display
ESC/POS thermalReceipts
10Automated test suites
MenuGo (QR Dine-in Ordering) Preview

Technical Deep Dives

Quantitative Analytics / ML

Trading AI (USD-M Futures Signal)

PyTorch LSTMFastAPIReact 18 / ViteXGBoost + SHAP
Execution: Analysis only
Model explanations: SHAP
Streaming: FastAPI WebSocket
Data store: SQLite

Problem

Crypto futures trading suffers from extreme volatility, high noise-to-signal ratios, and lack of visual feature explanations.

Solution

Developed an analysis-only futures prediction suite combining XGBoost classifiers and PyTorch LSTM sequence engines running under Nvidia CUDA, paired with FastAPI WebSocket streaming and transparent SHAP explanations.

Computer Vision / Accessibility

AuraVision (Assistive Spatial AI)

OpenCV / YOLOGemini 3 FlashLlamaIndex / ChromaDBPython Multiprocessing
Object detection: YOLO
Scene understanding: Gemini multimodal
Context retrieval: LlamaIndex / RAG
Focus: Accessibility

Problem

Visually impaired individuals face dangerous physical navigation challenges and lack real-time context of spatial changes.

Solution

Built a spatial AI system using yoloe-26N-seg object locators, multiprocessing face identification queues, Gemini-3-Flash multimodal scene understanding, and an adaptive RAG memory using LlamaIndex.

The Experiment Lab

Prototypes, micro-SaaS MVPs, and lessons from failed builds.

Enter Lab