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Docat0209/README.md

Hi, I'm Docat (Shane)

Full-Stack Developer | AI-Integrated Tooling

I build end-to-end systems that connect AI capabilities with real-world applications — from voice-driven AI agents and face recognition kiosks to mobile apps and POS systems. I care about shipping working products, not just prototypes.

  • Information Management @ National Yunlin University of Science and Technology (YunTech)
  • Practicing AI-assisted development since 2023
  • Currently focused on OpenAI Realtime API agents, RAG pipelines, and edge deployment on Raspberry Pi

Tech Stack

Languages

Python Kotlin Java C# JavaScript

AI / ML

OpenAI Claude Code LightGBM FAISS Optuna

Backend & Frontend

FastAPI Django Spring Boot Flask React TailwindCSS

Mobile & Desktop

Android iOS .NET

Database

MySQL SQLite SQL Server

Infra & Integration

Raspberry Pi LINE Cloudflare Google Maps

Experience

Period Role Organization Description
2025.03 — Present LLM Application Developer YunTech (Research Assistant) Building voice-driven AI agents for industry-academia collaboration projects — including an AI English tutor kiosk and an HIV education assistant with OpenAI Realtime API, RAG, and edge deployment
2024 Project Developer YunTech Built a campus electric scooter rental platform (Spring Boot + Android) and a voice-driven AI VTuber (OpenAI + Live2D)
2023.10 — 2023.12 Mobile App Developer (Part-time) 樂活資訊服務股份有限公司 Part-time maintenance of 3 production apps (2 Flutter, 1 native iOS/Android) for a running event platform. Upgraded SDKs to meet store listing requirements, fixed BLE packet transmission bugs, and refreshed UI layouts
2022.07 — 2023.02 Freelance Developer Delivered a POS & online ordering system (Django) and a delivery route dispatch tool (C# .NET) as contracted projects
2021 National Skills Competition 勞動部中彰投分署 · 臺中市立臺中工業高級中等學校 🥉 3rd Place — Mobile Applications Development / Skill 08 (National) · 🥉 3rd Place — IT Software Solutions for Business / Skill 09 (Central Region)

Case Studies

Closed-source projects showcased as case studies with architecture diagrams and technical write-ups.

Project Description Stack
case-ai-tutor-kiosk AI English tutor kiosk with face recognition and animated character OpenAI Realtime, InsightFace, VLC, Raspberry Pi
case-hiv-edu-assistant HIV pre-screening education voice assistant (YunTech × St. Joseph Hospital) OpenAI Realtime, RAG, FAISS, LINE Bot
case-ai-vtuber Voice-driven AI VTuber with long-term memory and emotion expression OpenAI, FAISS, Live2D, Discord.py
case-escooter-rental Campus electric scooter sharing platform for YunTech Spring Boot, Android (Kotlin), Google Maps
case-pos-system POS & online ordering system for 清真恩德元餃子館 Django, Bootstrap, ESC/POS thermal printing
case-delivery-dispatch Drag-and-drop delivery route dispatch tool C# .NET 6, WinForms, GDI+ printing

Personal Open-Source Projects

Project Description Stack
qlib-tw-trader Quantitative trading system for Taiwan stocks — DoubleEnsemble model, 300+ factors, Walk-Forward backtesting Qlib, LightGBM, DoubleEnsemble, FastAPI, React
BreezyVoiceX Fine-tuned Taiwanese-accented Mandarin TTS model with zero-shot voice cloning BreezyVoice, PyTorch, SFT
GitHub Stats

GitHub Stats

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Popular repositories Loading

  1. BreezyVoiceX BreezyVoiceX Public

    An enhanced version of MediaTek BreezyVoice, focused on usability.

    Python 1

  2. qlib-tw-trader qlib-tw-trader Public

    End-to-end quantitative trading system for Taiwan stocks — DoubleEnsemble model, 300+ factors, Walk-Forward backtesting, React dashboard

    Python

  3. case-ai-vtuber case-ai-vtuber Public

    Voice-driven AI VTuber system with long-term memory, emotion expression, and real-time Live2D animation control.

  4. case-escooter-rental case-escooter-rental Public

    Campus electric scooter sharing platform with real-time GPS tracking, geofenced return zones, and mobile-first UX — built at YunTech.

  5. case-pos-system case-pos-system Public

    POS and online ordering system for Halal En De Yuan — featuring thermal receipt printing, iPad POS, and sales analytics.

  6. case-delivery-dispatch case-delivery-dispatch Public

    Drag-and-drop delivery route dispatch tool with multi-temperature support and printable dispatch reports.