Hi, I'm

William

Fullstack Product Engineer

Focused on building complete systems from 0 to 1. Capable of the full lifecycle: product design, system architecture, development, deployment, and commercialization. Skilled at transforming complex requirements into scalable systems, enhancing efficiency through automation and AI integration.

Core Strengths

What I bring to the table.

End-to-End product development (concept to commercialization)
Modular architecture & scalable system design
Workflow engine & automation system design
Real-time systems (WebSocket / Event-driven)
AI + Automation integration
Cross-system integration (LINE / IoT / Web / Backend)

Projects

A selection of projects I've built or led end-to-end.

GingerBase ERP

Self-developed cloud No-code ERP platform. Dynamic data models (custom form engine + field system), workflow engine (automation & logic control), multi-tenant & permission management, calendar/Gantt chart/template printing, LINE/Email real-time notification. SaaS model with multiple plans.

C# Blazor WASM Node.js SQL Server
gingerbase.net

ScriptBuilder

Modular automation script building platform with commercial licensing and plugin extensions. Plugin-based architecture, script modular composition, licensing & payment system, containerized deployment.

JavaScript HTML/CSS Docker
Private Repo

Lazefish

Automation tool simulating human behavior for safety and stability. Timing control & behavior simulation, safety mechanism design, commercial licensing.

JavaScript
View on GitHub

Lazegather

Automated gathering system with route planning and coordinate computation. Path planning algorithms, GUI settings interface, automated process control.

JavaScript
View on GitHub

FlashCard & QRCode Apps

Learning application platform with audio and QR code integration. Custom authentication system, card data CRUD, QR code generation.

C# Blazor WASM
Private Repo

E-Book Manager

E-book management system with card-style UI. Book data management, CRUD system, clean UI architecture.

Python HTML/CSS
Private Repo

Online Game Server Infrastructure

Full-stack online game server deployment and operation. Server architecture setup, database management, game data engineering (XML/SQLite), real-time content configuration, player behavior analysis tools, automated boss AI design system, and community portal with 500+ registered users. Includes companion website with real-time server monitoring, event management, and SEO optimization.

Python Node.js SQL Server JavaScript HTML/CSS
tera.lazebot.com

ALPS Manufacturing

Aluminum casting manufacturer corporate website (ISO 9001:2015). Bilingual system (Chinese/English), product & equipment showcase, parallax scrolling design.

jQuery Bootstrap
alpsmfg.com.tw

LINE Bot + OctoPrint

3D printer remote control system via instant messaging. Real-time chat-based device control, API integration (OctoPrint), automated operation workflows.

Node.js
Private Repo

Data Engineering Tools

High-performance data processing and analysis system. Parsing 1GB+ XML structured data, SQLite query system, AI behavior logic design.

Python SQLite Node.js
Private Repo

Ollama Client

Local LLM integration system. Ollama API client, AI auto-response system (LINE integration), local model inference.

C#
Private Repo

Skills

Technologies I work with regularly.

Languages

JavaScript / TypeScript C# Python SQL / XML

Frontend

Blazor WebAssembly Bootstrap / jQuery PWA

Backend

.NET Node.js (Express) FastAPI

Database

SQL Server (MSSQL) SQLite MongoDB

Architecture

Modular Architecture Event-driven Workflow Engine Design

Real-time & Integration

WebSocket LINE Bot API Real-time Data Sync

AI & Automation

Local LLM (Ollama) Multi-Agent Design Telegram Bot API LINE Bot API AI Workflow Automation

System Integration

Web/IoT/Bot Integration API Design & Data Flow

DevOps

Docker Docker Compose Linux IIS Git / GitHub VMware Hyper-V

Embedded / Hardware

Raspberry Pi ESP32 / ESP8266 SPI / I2C E-paper Display

Contact

Feel free to reach out.