Masahito Hebiishi (蛇石 真民)

A restaurant-floor-trained AI × DX implementer. Eight years in restaurants, then independent.

Masahito Hebiishi

8 years on the restaurant floor × AI.
No buzzwords.

I know the difference between AI that actually gets used and AI that only works on paper. Whether it is getting found by customers or running daily operations, I land it in a form the floor can actually use — never "install a tool and call it done." In the shop's own words, for the shop.

LL.B., Meiji University (Law) 8 years in restaurants AI × DX — restaurant-focused

Background

8 years — Restaurant industry

From part-time to full-time floor work: operations improvement, numbers, staff training — every part of running a store.

Transition — Self-taught engineering

Driven to fix the inefficiencies I lived with daily. React, Next.js, FastAPI, Cloud Run.

Now — Solo practice

Notion, Google Apps Script and AI automation through to web and AI product development. Several products built and run in-house.

What sets me apart

I handle design, implementation and operation alone. The person who designed it is the one who builds it and owns running it — no spec degrading through a game of telephone the way it does at a typical SIer.

And I know the floor. I understand from experience — not from an IT-department whiteboard — what a system used every day in a restaurant has to be. "We rolled it out but nobody uses it" gets prevented at the design stage.

Products

LeadNavi — Sales lead generation SaaS

Auto-generated prospect lists via Google Places API and scraping. Team management and Stripe billing built in.

StreamlitPostgreSQLCloud RunStripe

Hidamari — Anonymous peer-support SNS

An anonymous community designed around psychological safety. Crisis-keyword detection and SOS button. iOS / Android.

ReactFirebaseCloud RunCapacitor

LLMO Dashboard — LLM visibility audit

Audit how your brand shows up across ChatGPT, Gemini, Claude and Perplexity. Integrated reports with competitive deltas.

ReactExpressPostgreSQLStripe

aiyolab — AI learning platform for dietitians

2,400+ national-exam questions with AI explanations, AI meal planning, RAG-based nutrition chat (8,200+ chunks, 87.5% accuracy). Three-tier subscription.

Next.jsPrismaPostgreSQLClaude APIStripe

AI BI Tool — Restaurant analytics in natural language

Natural language → SQL → charts → AI interpretation, end to end.

FastAPIReactEChartsClaude API

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