Your Partner in Every Challenge.
Solving problems, moving forward. Reliable growth for both businesses and individuals.
About Us | About Japavilion
Japavilion is a individual business that provides value as your partner in every challenge.
We have established 3 services and their dedicated pages according to purpose, to identify the essence of challenges and deliver support in the optimal form.
For example...
Small and medium businesses: "Moving away from paper and Excel", "Organizing business flows", and other practical business improvement support.
Development companies: "Speed-focused development support", "Tech lead services", and other support with reliable technical skills.
Individuals: For concerns like "not knowing how to learn" or "wanting to take the first step", we provide personalized support.
Thinking together and moving forward together from the same perspective. As an execution-oriented partner, we will find solutions together that fit your business or career. There is surely support that's perfect for you. Please proceed to the page that matches your purpose.


About the Founder
Keitaro Kaneko
Keitaro Kaneko
Full-stack Engineer / Founder
As a full-stack engineer specializing in Ruby on Rails, React/Next.js, and AWS, providing DX support, business improvement, web app development, and technical consulting. Supporting businesses and individuals alike as a hands-on partner committed to your success.
We provide the optimal support tailored to your goals.
↓ Select from the 3 options below based on your needs ↓
For Business
Business Improvement & In-house Development Support
- Want to move away from paper and Excel-based operations
- Want to redesign and automate internal business flows
- Want to implement digital tools but don't know which ones to use
Tap for details →
For System Companies
Development Support & Team Management
- Need development resources that can be deployed immediately
- Need a technical leader who can take charge of projects
- Want to review team structure or architecture
Tap for details →
For Individuals
Learning & Career Support
- Unsure about learning methods or feeling anxious about learning
- Want someone to consult with (for questions or brainstorming)
- Want to discuss next steps like side jobs or going independent
Tap for details →