Full-stack / AI systems engineer · Founder, Shibubu

Ryosuke Shibuya

Full-stack / AI systems engineer and founder of Shibubu — a production MCP server (shibubu.ai) that hosts AI virtual buddies with a 9-axis psychological parameter engine, OAuth 2.1 / JWT authentication, and a public developer SDK. B.S. in Computer Information Systems (CSUSM, 2026); M.S. in Computer Science student at CSU East Bay (2026–2028). Experienced in MCP protocol integration, multi-agent orchestration, RAG pipelines, async data processing, and full-stack TypeScript / Python architectures (React, Express, FastAPI, PostgreSQL). Independently design, deploy, and operate live services (Fly.io, Vercel, Docker, Sentry, CI). Bilingual in Japanese (native) and English (professional).

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Production AI Full-stack

Systems shipped 5

10 Major projects

MCP AI protocol systems

JP / EN Bilingual delivery

Stack

Languages TypeScript, JavaScript, Python, SQL, Java, C++, C#, HTML/CSS, PHP

Frontend Next.js (App Router, RSC), React, Tailwind CSS, Radix UI, shadcn/ui, Recharts, Framer Motion, Zustand, Fabric.js / Canvas API

Backend & Data Express, FastAPI, Prisma ORM, NextAuth, PostgreSQL, SQLite, Supabase, Celery + Redis, Vector Search, Social Graph Modeling, MCP servers (Streamable HTTP / stdio)

AI / Analytics pandas, NumPy, Claude API / Claude Agent SDK, OpenAI, Google Gemini, Vercel AI SDK, DeepL API, Ollama, RAG Pipelines, Evidence-based RAG, Structured JSON Validation, OCR, Speech-to-Text / TTS, ComfyUI

Engineering MCP (Model Context Protocol), OAuth 2.1 / JWT (Argon2), Async Data Pipelines, AI Safety Guardrails, Zod Validation, Property-based Testing (fast-check), Vitest, Playwright, Haversine Geo-Search, Caching Strategies, GitHub Actions, BeautifulSoup

Tools & Platforms Vercel, Fly.io, Docker, Supabase, Cloudflare R2, Sentry, Tableau, Git, GitHub Actions, Firebase

Ryosuke Shibuya

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