About Atsushi
CodeRabbit Developer Advocate, CEO of MOONGIFT Inc., and Representative Director of the DevRel Association. After working as a programmer and engineer at several companies, he became independent at the age of 28. In 2004, when information on open source software was still scarce, he launched the technical blog MOONGIFT and has been publishing content daily ever since. He incorporated the business in 2013 and began evangelism activities in Developer Relations (DevRel), bridging business and engineers. All social IDs are goofmint.
Skills
- Developer Relations (DevRel)
- Community building and management
- Content creation (blogs, videos, podcasts)
- Programming (JavaScript/TypeScript, Python, Ruby, PHP, Dart/Flutter, Java, C#, Kotlin, VBA, etc.)
Experience
DevRel leader with 11+ years of experience building Japanese developer ecosystems for global tech companies. Proven impact across B2C and B2B domains, including 100% contract closure, enterprise negotiations, and large-scale community building. Expert in AI-assisted development (Claude Code, GitHub Copilot, Cursor) and cross-cultural collaboration.
CEO — MOONGIFT (Oct 2013 – Present)
- Operates own media platform MOONGIFT
- DevRel as a Service for 100+ technology companies
- Organized DevRel/Tokyo, DevRel Meetup, and international communities
- Published 500+ technical articles
- Created 50+ SDKs in 10+ programming languages
Developer Advocate — CodeRabbit (Jan 2025 – Present)
Primary Responsibilities
- Japanese DevRel and developer marketing for AI code review product
- Cross-cultural coordination between Japan and US headquarters
- Customer advocacy and enterprise negotiation
- Content strategy and localization
Results
- Resolved 20+ complex enterprise account issues
- Established repeatable Japan–US collaboration frameworks
- Built developer communities across Japan
Technology Evangelist — blastengine (Dec 2021 – Mar 2025)
- Technical blog writing and documentation
- SDK development (Python, PHP, Ruby, Java)
- Conference speaking and workshops
- Evangelist for email delivery service blastengine
Technology Evangelist — GROWI (May 2024 – Mar 2025)
- Open-source wiki platform evangelism
- Community management and developer support
- API documentation and SDK development
Technology Evangelist — Hexabase (Aug 2022 – Jun 2024)
- BaaS evangelism for enterprise developers
- Technical blogging and use case documentation
- Hackathon and community event design
Technology Evangelist — Nifty Cloud Mobile Backend (Apr 2014 – Nov 2023)
- Evangelist for Nifty Cloud mobile backend (mBaaS)
- 200+ technical articles
- 10+ annual enterprise seminars
- SDK development (Python, Java, Flutter, React Native, GAS, VBA)
Community Leadership
DevRel/Tokyo (Sep 2015 – Present)
- Founder and manager
- 2,200+ active members
- Monthly events and weekly podcast (DevRel Radio)
DevRel Meetup in Bengaluru (Aug 2017 – Present)
- Founder and community manager
- Cross-border DevRel knowledge exchange (Japan ↔ India)
Monaca Sommelier Program (Aug 2017 – Apr 2020)
- Japan’s first mobile development champion program
- Designed selection criteria and advocacy framework
- 20+ enterprise adoptions influenced
Conference Organizer
- DevRelKaigi Tokyo 2025
- DevRelCon Tokyo Series (2017–2023)
- DevRel/Japan Conference (2019–2024)
- DevRel/Asia 2020 (Online, pan-Asia)
- Global AI Hackathon Tokyo 2017
- PWA Night Conference (2019–2022)
Blog & Editorial Work
- Blog Writer: Asial, HENNGE, Val Laboratory, Valtes
- Case Study Editor: Classmethod
Previous Experience
- Project Manager — Miil Inc.
- System Development & Consulting (Freelance)
- Office Engineer — iREP Inc.
- Programmer — Racoon Inc.
- Quality Control Engineer — AIM Electronics
Education
- Bachelor of Science, Mechanical Engineering National Institute of Technology, Tokyo College
Japanese Developer Platform Presence
Qiita
- 720 articles
- 56+ consecutive months
- 2,752 contributions
Zenn
- 75 articles
- 197 likes
AI-Driven Development Expertise
- CodeRabbit
- Claude Code
- GitHub Copilot
- Cursor
- Codex
Recently OSS Projects
Skills
- Languages: Python, JavaScript/TypeScript, Google Apps Script, Go, Java, Dart/Flutter, C#, PHP, Ruby, Swift, Kotlin, VBA
- Frameworks: React Router, Hono, Vue, Remix, Next.js, Flutter
- Languages: Python, JavaScript/TypeScript, Go, Java, Dart/Flutter, PHP, Ruby, Swift, Kotlin, VBA
Publications (Japanese)
- The 3Cs for Becoming Engineer-Friendly in DevRel
- Docker Expert Training Guide
- Developer Marketing DevRel Q&A
- Get Started with Online Events in One Book!
- Expanding Developer Careers Through English
Packages
- npm: https://www.npmjs.com/~moongift
- PyPI: https://pypi.org/user/goofmint/
- Packagist: https://packagist.org/users/goofmint/packages/
- RubyGems: https://rubygems.org/profiles/moongift
- pub.dev: https://pub.dev/packages/hexabase
Contact
- Email: [email protected]
- X/Twitter: @goofmint
- LinkedIn: Atsushi Nakatsugawa