Works

An AI agent that autonomously operates a client's customer-facing service, delivered as a contract project — AI-driven automation implemented at production level.

Planned, designed, and built the portfolio website of "krystasis," a creator exploring the fusion of AI, music, and technology.

A Chrome extension that visualizes every connection your browser makes and automatically blocks trackers and dangerous domains — developed in-house from concept to release.

Single-handedly built a database of millions of companies — the core of a sales-support AI — covering data collection logic, cost management, and master data design.

Served as Python instructor for Toyota Motor Corporation's new engineer training, covering everything from programming fundamentals to practical application.

Joined a large-scale project to build a general trading company's ERP system entirely from scratch, serving as project leader (PL) from the requirements phase.

An AI tool that automatically matches Excel data against PDF documents, developed as a full-stack engineer — featuring a high-speed matching engine built in Rust.

Served as PM and full-stack engineer for two marketing SaaS products that improve website conversion rates, from development through operations.