data engineer in tokyo — I make data reliable for AI systems. large-scale pipelines by day, LLM/agent tooling the rest of the time.
- Tokyo, Japan
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mcp-servers
mcp-servers Public17 Model Context Protocol servers in daily use — browser automation, DuckDB, document processing (PDF/DOCX/XLSX), ChromaDB, multi-provider AI. Python/FastMCP, 16k+ lines.
Python 1
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shardate
shardate Publiclightweight Python library for reading date-partitioned Parquet with PySpark. published on PyPI
Python
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migrate
migrate Publiccompare cities for relocation — quality of life, cost of living, and socioeconomic indicators for 24+ cities. TypeScript + Python, live demo
TypeScript
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nonnative
nonnative Publicstatic-site engine for Obsidian vaults — wikilinks, backlinks, graph view, tag pages. publish any vault to GitHub Pages via a reusable Actions workflow
TypeScript
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consultant
consultant Public50+ consulting frameworks used by McKinsey, BCG, Bain, and Accenture — packaged as a Claude Code plugin
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naxos
naxos PublicPoC: secure multi-tenant AI agent platform on GCP — Claude Agent SDK, guarded BigQuery/GCS tools, governance built in
Python
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