Colorado, US
Tomada
Software engineer · practitioner and teacher of AI-driven development
Software engineer based in the U.S. I started out at a systems integrator in 2016, moved into web application development in 2021, and went independent in 2024. Alongside financial media, large-scale service replacements and helping companies adopt AI-driven development, I keep building my own tools and putting Claude Code and Codex CLI through their paces. The book, the Udemy courses and the YouTube channel are the record of that.
Profile
Since
2016
Courses
16
Udemy students
10,000+
Book
Book
An introduction to Claude Code that you follow by building a real app.
Cover
Title
Claude Codeで作って学ぶ AI駆動アプリ開発入門
- Released
- Publisher
- Price
- Format
- ISBN
The book starts with installing Claude Code and holding your first conversation with it, then covers the basics of that conversation — @ references and slash commands — how to hand a project its rules through CLAUDE.md, and how to connect Playwright and Supabase over MCP. Every step is something you can follow along with at the keyboard.
In the later chapters you put all of it together: you build a task management app with Next.js and Supabase, then deploy and publish it on Vercel. Reading and refactoring existing code, requesting reviews on GitHub, and working this way as a team are covered too.
It is written for people about to pick up Claude Code, but there is material here for current users as well — layered CLAUDE.md management, running MCP in earnest, and rolling the practice out to a team.
Teaching
Teaching
Udemy
Udemy instructor
Courses centred on AI-driven development. More than 10,000 students to date.
Browse the coursesYouTube
YouTube channel
I publish what I find when I put Claude Code and Codex CLI to work, running the tools on camera.
Visit the channelDiscord
Community
A Discord where people learning AI-driven development share what they have tried and where they got stuck.
See the communityCareer
Career
Stack
Stack
What I have actually built with on client projects. Ruby on Rails and Python are where I am strongest; React with TypeScript and Laravel are what I have worked in most recently.
Backend
Server-side and data
- Ruby on Rails
- Python
- PHP / Laravel
- Node.js
- .NET
- GraphQL
- MySQL
- PostgreSQL
Frontend
Browser and UI
- TypeScript
- React
- Next.js
- Vue.js
- Redux
- Tailwind CSS
- jQuery
Platform
Infrastructure, CI and testing
- AWS (EC2 / ECS / RDS / S3 / Lambda)
- Terraform
- Ansible
- Docker
- Nginx
- Linux
- GitHub Actions
- CircleCI
- GitLab CI
- RSpec
- PHPUnit
- Jest
- Datadog
- Bugsnag
AI & Collaboration
AI-driven development and team tooling
- Claude Code
- Codex CLI
- Cursor
- GitHub Copilot
- Claude API
- MCP
- GitHub
- GitLab
- Redmine
- Jira
- Slack
- Notion
Certifications
Certifications
Credentials
- AWS Certified Solutions Architect – Professional
- AWS Certified DevOps Engineer – Professional
- AWS Certified Security – Specialty
- CCNP Routing and Switching
- Registered Information Security Specialist (Japan)
- Applied Information Technology Engineer (Japan)
- TOEIC 910
- IELTS (General Training) 6.0
Speaking · 2025 · Online
Tokyo AI Festival, pre-event (2025)
Claude Code vs Codex CLI, compared in depth (online)
Drawing on using both tools daily, I compared how flexible their custom commands are, their sub-agent features, IDE extension support, and the state of each community.
Event detailsLinks