Engineering student in Tokyo with experience across AI engineering, product management, data analysis, and software development. I enjoy turning technical ideas into products that people can understand and use.
- Building iOS applications with Swift and SwiftUI
- Designing reliable backend services and asynchronous processing systems
- Applying AI and data analysis to product decisions
- Improving product development through automation and rapid prototyping
A durable background job queue implemented in Go. It includes atomic job claiming, concurrent workers, expiring leases, exponential retries, idempotency-key deduplication, a dead-letter queue, Prometheus metrics, a TTL cache, OpenAPI documentation, and Docker.
Tech: Go, SQLite WAL, Prometheus, OpenAPI, Docker, GitHub Actions
An iOS app for learning algorithms and data structures through daily interactive puzzles. It includes more than 130 questions, algorithm visualizations, learning statistics, achievements, reminders, and a WidgetKit extension.
Tech: Swift, SwiftUI, Charts, WidgetKit, MVVM
- GitHub Profile Card Generator - TypeScript app using the GitHub REST API
- TechPulse Japan - Live technology trend feed using Qiita, Hacker News, and GitHub data
- AI & Data Engineering: Developed predictive models and data pipelines using Python, SQL, and BigQuery
- Product Operations & Automation: Improved internal workflows and supported UI/UX prototyping
- Software Engineering: Worked on product development at a global C2C marketplace
- Product Management: Connected user needs, business requirements, and engineering execution
Backend
Mobile
AI and Data
Web and Product
- Clear ownership from problem discovery through implementation
- Products grounded in user needs and measurable outcomes
- Documentation that helps others understand and maintain the work