Six Production Systems (Internship)
Six live operations systems for registration, scheduling, dashboards and attendance.
AI APPLICATION · PRODUCT ENGINEERING · SYSTEM INTEGRATION AI · PRODUCT · SYSTEMS
TAIWAN / UTC+8
BOYAN CHUANG · 莊柏彥 AI Application & Product Engineer
I turn vague operational requirements into AI and full-stack systems that ship, hold up in production, and stay maintainable — from breaking down the requirement through API, data, permissions, deployment and day-to-day operations. Multiple production systems delivered, plus a merged open-source upstream contribution.
- BUILD
- TypeScript · Node.js · React · PostgreSQL · AI/LLM Integration
- FOCUS
- AI Application · System Integration · Operations automation
01 / IDENTITY CARD
BOYAN
AI APPLICATION
PRODUCT ENGINEER
AI · API · DATA
INTEGRATION · OPS
- 01 AI application & product engineering
- 02 Full-stack & system integration
- 03 Production & operations
CAPABILITIES
Capabilities & stack
From requirement breakdown through AI and system integration to production operations: the problems I solve, the tools I use, and how each one shows up in the work below.
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AI application & product engineering
Break vague operational requirements into verifiable flows, wire them to LLM classification, automation and APIs, and take them all the way to launch and daily operations.
Requirement breakdown · LLM integration · AI message classification · Operations automation · Product Engineering
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Full-stack & system integration
UI, API, database, permissions and third-party services joined into one data flow. LINE, Ragic and PostgreSQL are systems I have actually integrated.
TypeScript · Node.js · Express · React · PostgreSQL · LINE API · Ragic
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Production & operations
What happens after launch: permission audits, performance, backup and recovery, incident handling — plus content structure that both people and search engines can read.
Permissions & audit · Performance optimisation · Backup & recovery · Incident handling · SEO / AEO
TECH INDEX
Tools I have actually used
Compiled from real projects, prototypes and dev environments. Depth varies by project — used is not the same as mastered.
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Frontend & interaction
- Astro
- React 19
- React Native
- Expo
- TypeScript
- JavaScript
- HTML
- CSS
- Vite
- Wouter (routing)
- TanStack Query
- Tailwind CSS
- shadcn/ui + Radix UI
- React Hook Form + Zod
- Framer Motion
- Recharts
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Backend & API
- Node.js
- Express
- Python
- REST API
- WebSocket (ws)
- Passport (local)
- express-session + connect-pg-simple
- Helmet + express-rate-limit
- LINE Bot / LIFF
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Data & integration
- Drizzle ORM
- PostgreSQL (Neon serverless / pg)
- MongoDB + Mongoose
- MySQL
- Redis
- Ragic
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Build, test & tools
- esbuild
- tsx
- Vitest
- Drizzle Kit
- Docker Desktop
- Git
- GitHub / GitHub Desktop
- Postman
- MongoDB Compass
- Anaconda
- Cloudflare Workers
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AI & discoverability
- AI-assisted research & development
- AI message classification
- Semantic HTML
- Structured Data
- SEO / AEO (ongoing research)
WORK OVERVIEW
