Projects

Products I have designed, built and still run — open any of them to see the problem, how it was solved and what came of it.

All9

SaaS2

AI4

Infrastructure1

Web app2

Spark Store — retail store management platform (Web · iOS · Android)

Live

SaaS

Spark Store — retail store management platform (Web · iOS · Android)

Spark Store brings a retail store's sales, inventory, shifts, face-recognition attendance, payroll and cash flow into one system: an admin web app, iOS/Android apps for staff, and each store's own storefront with an AI assistant. It started as in-house software for CiCi 21 Chùa Láng and now runs several stores.

Core Agent Stack — MCP + ReAct Middleware

The AI agent layer of Core CMS: an MCP server wrapping 176 business tools, and a ReAct middleware that enforces permissions by role.

SPARK AI Gateway

Self-hosted, OpenAI-compatible API gateway that brokers between multiple tenants and OpenClaw agents.

SPARK Platform — GitOps on K8s

Self-hosted infrastructure shared by the whole SPARK DEV ecosystem: Kubernetes (K8s) + ArgoCD + Postgres/Mongo/Redis/Kafka.

Face Tracking Service

Standalone AI inference microservice for check-ins: detection → tracking → liveness → embedding → verification.

SPARK Finance — expense & debt management SaaS

Multi-tenant SaaS for tracking expenses, loans, overdrafts and partner lending: LLM-powered bank statement import, customizable dashboards, an AI assistant and a 28-tool MCP server that lets agents read and write financial data — one subdomain per tenant, isolated with PostgreSQL Row-Level Security.