Achievements & capabilities

2025/08–Present

E-commerce Shop Operations Consulting

Technology E-commerce consulting

AI used Gemini, Claude, Codex

Outcome Strategic planning and operational optimization for e-commerce site management, with initiatives to increase sales.

2026/05–Present

E-commerce Site and Product Development, Strategy Planning and Execution

Technology Cloudflare Pages / Pages Functions / TypeScript / JavaScript / D1 / Stripe / Cloudflare Email Service

AI used Codex, NotebookLM

Outcome Supported e-commerce product development, strategy planning, website design updates, and the transition to e-commerce that generated sales.

2026/05–06

Internal Guidance and Adoption Support for AI Agents

Technology GitHub Copilot / MCP / TypeScript / React

AI used GitHub Copilot

Outcome Explained and created MCP tools and skills, presented practical applications, and built a chat web app for demonstrations.

2026/04–05

Invoice and Qualified Invoice Issuance System Demo

Technology React / TypeScript / Vite / Cloudflare Pages / PDF document generation

AI used Codex

Outcome Created a demo for a web-based system that manages business partners, products, invoices, and qualified invoices with PDF output.

2026/03–04

Remote CLI

Technology React / TypeScript / Vite / Cloudflare Pages / Cloudflare Workers (Hono) / WebSocket / Durable Objects / D1 / KV

AI used GitHub Copilot, Claude

Outcome Built a system for remotely operating a local PC AI CLI from a browser. Session sharing, authentication, and real-time communication reduced PC-based development effort and accelerated natural-language development.

2026/02–06

TikTok Shop System Development

Technology React / TypeScript / Vite / Supabase Auth / Cloudflare Workers / Supabase / TikTok Shop Partner API

AI used GitHub Copilot, Claude, NotebookLM

Outcome Built an operations dashboard that centrally manages products, orders, inventory, and sales performance. API synchronization, scheduled updates, and KPI visualization made shop operations easier to monitor and analyze.

2026/02–03

E-commerce Consultant AI Agent Development

Technology TypeScript / Hono / Cloudflare Workers / AWS Bedrock / Amazon S3 / Trigger.dev / Google Drive API / RAG

AI used GitHub Copilot, Claude

Outcome Automated analysis report generation using e-commerce data and a knowledge base, building an AI workflow from requirements organization and task decomposition through parallel analysis and final report generation.

2026/02–03

IoT System for Collecting Environmental Sensor Data

Technology React / Vite / TypeScript / Tailwind CSS / Recharts / Cloudflare Workers / Hono / D1 / KV / Durable Objects / WebSocket / Workers AI (Llama 3) / Cloudflare Pages

AI used GitHub Copilot, Claude

Outcome Built an IoT SaaS platform that combines sensor data collection, visualization, and AI analysis, enabling real-time edge processing and device operations.

2026/02–03

Slack and Canvas to NotebookLM Automation

Technology Cloudflare Workers / Hono / TypeScript / D1 / Queues / Cron Triggers / Slack Events API / Google Drive API / Google Admin SDK / Clerk JWT

AI used GitHub Copilot, Claude, NotebookLM

Outcome Built a system that continuously collects Slack messages and Canvas content and synchronizes them as NotebookLM sources through Google Drive, improving weekly progress visibility and reducing handover time.

2025/09–2026/01

External Manager for a Venture Company

Technology Project management

AI used GitHub Copilot

Outcome Supported projects as a manager and led initiatives to improve operational efficiency.

2025/10–12

Rakuten Store Contribution Margin Calculation System

Technology Google Apps Script / Google Sheets / SpreadsheetApp / Rakuten order data integration

AI used GitHub Copilot, Gemini

Outcome Automated contribution margin calculations using cost, order, and SKU data, centralizing cost-sheet synchronization, SKU recalculation, and monthly summary backups.

2025/09–10

BUYMA Automated Listing System

Technology Python / Selenium / Google Sheets API / Google Docs API / CSV / JSON

AI used GitHub Copilot, Gemini

Outcome Automated the process from retrieving product information and images from spreadsheets to transforming product data and creating draft listings on BUYMA.

2025/07–08

eBay Product Research Efficiency Tool

Technology Python / Selenium / Google Sheets API / JSON / HTML output

AI used GitHub Copilot, Gemini

Outcome Automatically collected market indicators such as average selling price, price range, shipping cost, sell-through rate, and seller count from eBay keyword searches and turned them into reports.

2025/07–08

eBay Price and Advertising Rate Update System

Technology Google Apps Script / OAuth 2.0 / eBay Selling API / eBay Marketing API / Google Sheets

AI used GitHub Copilot, Gemini

Outcome Bulk-updated prices and advertising rates for eBay products specified in a spreadsheet, automating authentication, listing updates, advertised-product management, and API rate-limit visibility.

2025/06–07

eBay Competitor Data Collection System

Technology Python / eBay API

AI used GitHub Copilot, Gemini

Outcome Scheduled the collection of competitor data such as eBay search rankings and prices.

2025/04–06

Project Management (Multiple Projects)

Technology Project management

AI used GitHub Copilot, Gemini

Outcome Handled requirements organization, schedule management, and coordination with external developers.

2025/04–06

Amazon and Prister Order Processing Automation

Technology Python / Selenium / BeautifulSoup / pandas / Amazon SP-API / AWS authentication / JSON / CSV / PDF

AI used GitHub Copilot, Gemini

Outcome Retrieved unshipped data from Prister, processed Sagawa and Yamato shipment data and tracking numbers, registered shipment information through Amazon SP-API, and automated successful-shipment JSON and HTML generation.

2025/04–06

Rakuten Store Inventory and Sales Management Program

Technology Google Apps Script / Google Sheets / Rakuten RMS API / CSV output

AI used GitHub Copilot, Gemini

Outcome Centralized the retrieval and aggregation of Rakuten order data, inventory transfers, backups, sales forecasting, and CSV output, reducing spreadsheet API calls by approximately 80% and speeding up processing.

2025/04–05

Rental Property Availability Monitoring and Notification System

Technology Python / Selenium / Google Sheets API / Gmail

AI used GitHub Copilot, Gemini

Outcome Automated regular monitoring of vacancy information, condition-based application data entry, repeated execution, and email notifications.

2025/03–06

E-commerce Order-to-Shipping VBA Tool

Technology VBA

AI used GitHub Copilot, Gemini

Outcome Processed Rakuten and Mercari order data to generate shipping data.

2025/03–04

Public Facility Availability Check System

Technology Python / GCP / AWS

AI used GitHub Copilot, Gemini

Outcome Built and put into operation a notification system.

2025

Other Business Efficiency Tools

Technology Various scripts

Outcome Automated routine processes across a range of operations.

2022/08–10

E-commerce Site Development Using Shopify, Instagram Integration and Consulting

Technology Shopify / Instagram integration

Outcome Built an e-commerce site and provided Instagram consulting.

2020/04–10

Stock Information Scraping and Notification System

Technology Google Apps Script

Outcome Developed tools to retrieve and aggregate stock prices and identify stocks; used by more than 100 people.

2019–Present

Internal Business Efficiency Tools

Technology Python / VBA / C++ and more

Outcome Created and operated many internal automation tools.

2018/10–2019/03

Web Server for Cell Culture Equipment

Technology Apache Tomcat

Outcome Set up a web server development environment.

2017/04–2019/03

University Laboratory Experiment Data Processing

Technology VBA / Mathematica

Outcome Created automation programs for research work.

2017/03–2018/10

Digital Signage Distribution System

Technology HTML / CSS / JavaScript / PHP

Outcome Set up the server and improved the frontend.