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张元垚 | Software / Backend / AI Application Developer\n\n四川大学计算机科学与技术本科。关注软件工程、后端开发、AI 应用、计算机视觉与游戏系统工程。\n\n## Current Job Target\n\n**Primary:**\n- Java Backend Developer\n- Python / AI Application Developer\n- Backend / Platform Engineer\n\n**Secondary:**\n- Game Tool Engineer\n- Game Engineering / Testing-oriented Developer\n\n## Focus\n\n- Backend Development: Java, Spring Boot, MySQL, Redis, RESTful API\n- AI / CV: PyTorch, Remote Sensing Change Detection, Evaluation \u0026 Ablation\n- LLM Application: Streamlit, OpenAI-compatible API, Model Routing, Context Management\n- Systems \u0026 Tools: Linux Process Scheduling, FIFO, Signals, GitHub Actions\n- Game Engineering: Godot 4, GDScript, State Management, CI / Headless Tests\n\n## Featured Projects\n\n| Project | Description | Tech | Highlights |\n|---|---|---|---|\n| [Study Agent](https://github.com/2002yy/study-agent) | AI learning assistant with LLM, memory, web search | Python / Streamlit / LLM | 5 providers, 140 tests, multi-agent context |\n| [Smart Elderly Care](https://github.com/2002yy/smart-elderly-care) | Java Spring Boot multi-role elderly care service backend — backend \u0026 integration (team project) | Java 17 / Spring Boot / JPA / JWT | 4 tables, 16 APIs, JWT auth, state machine |\n| [Smart Calligraphy Edu](https://github.com/2002yy/smart-calligraphy-edu) | AI-powered calligraphy teaching platform with teacher/student web apps and FastAPI backend | Vue 3 / FastAPI / AI vision | Dual Vue3 frontends, FastAPI backend, AI scoring, public demo |\n| [LiteCDNet](https://github.com/2002yy/LiteCDNet) | Lightweight remote sensing change detection model | PyTorch | 2.47M Params, 2.14G FLOPs, A0-A7 ablation |\n| [BallWar](https://github.com/2002yy/BallWar) | 2D territory-control arcade game | Godot 4 / GDScript | Releases, Android export, 10 CI test runners, 1083 checks |\n| [AutoClicker-Pro](https://github.com/2002yy/AutoClicker-Pro) | Windows automation tool with macro recording and encryption | Python / CustomTkinter | Macro recording, packaging, CI, 43 tests |\n\n## Prototype / Practice Projects\n\n| Project | Description | Tech | Area |\n|---|---|---|---|\n| [Vector Breach Godot](https://github.com/2002yy/vector-breach-godot) | Godot FPS prototype — graybox level, weapon system, headless tests | Godot 4 / GDScript | FPS prototype |\n| [Plane-Shot](https://github.com/2002yy/Plane-Shot) | Java 17 Swing early GUI practice — plane shooter with jpackage | Java 17 / Swing | Desktop GUI practice |\n\n## Engineering Habits\n\n- Write README before treating a project as portfolio-ready\n- Keep runnable commands and test commands visible\n- Use CI / smoke tests / regression tests when possible\n- Separate demo assets, docs, source code and release artifacts\n- Avoid publishing secrets, local paths, oversized build 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