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6 followers · 19 following

Achievements

Achievement: QuickdrawAchievement: Pair ExtraordinaireAchievement: YOLOAchievement: Pull Shark

Achievements

Achievement: QuickdrawAchievement: Pair ExtraordinaireAchievement: YOLOAchievement: Pull Shark

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Ryuichi-Yamafuji-Lun/README.md

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Typing Intro

Software Engineer – Backend • AI • Full Stack

M.S. Computer Science @ USC • Building robust, scalable, and impactful software

🌐 Connect

LinkedIn   Portfolio

🛠 Tech Stack


👤 About Me

  • 🛠 Software Engineer with experience in backend systems, AI applications, and full-stack web development
  • ☁️ Skilled in building cloud-ready applications using Java, Spring Boot, PostgreSQL, Docker, Google Cloud Run, and AWS
  • 🤖 Developed AI-powered tools with PyTorch, FastAPI, and large-scale datasets
  • 📊 Researched high-performance database systems, improving concurrency throughput to 610K TPS
  • 🚀 Creator of DormDrop, a USC-exclusive subleasing platform with secure transactions and geolocation search
  • 🌍 Cross-cultural perspective — studied and worked in the US and Japan, bringing diverse problem-solving approaches

🚀 Featured Projects

Project Description Stack
[DormDrop] USC-exclusive subleasing platform. Features secure JWT/OAuth2 login, school-based search, Stripe transactions, and a containerized backend for AWS deployment. Private repo available upon request. Java, Spring Boot, PostgreSQL, Docker, AWS, React
MediSkinAI AI melanoma screening web app (91% accuracy). Built with a FastAPI backend for model inference, deployed on Vercel + Google Cloud Run. Python, FastAPI, PyTorch, React, TailwindCSS
FafnirDT Enhanced 2PLSF concurrency protocol with dynamic timestamp injection and elastic locks. Achieved 610K TPS under delayed workloads. C, C++, Systems Programming

📊 GitHub Stats

GitHub Stats
GitHub Streak

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  1. ccbench ccbench Public

    Two-Phase-Locking with Starvation Freedom Implementation: sf2pl folder. FafnirDT: fafnir folder

    Shell 1

  2. MediSkinAI MediSkinAI Public

    JavaScript 1 1

  3. FafnirDT FafnirDT Public

    Shell 1

  4. New-York-Housing-Price-Prediction New-York-Housing-Price-Prediction Public

    Jupyter Notebook

  5. grocery-store-management-system grocery-store-management-system Public

    A full-stack grocery store management system.

    Python 1

  6. leochoo/maigo leochoo/maigo Public

    A GeoGuessr Clone for MMO

    Svelte 5