Understand the problem, requirements and expected behavior, then turn those requirements into something tangible and testable.
How We Work
Good development starts with understanding the problem, not just writing the code. We build with intention, test what we create, and use what we learn to shape the next iteration. The goal isn't simply to deliver something that works — it's to make it better with every version.
Process
Validate functionality, usability, responsive behavior and edge cases. Working code is tested against what the product is expected to do.
Use what testing reveals to refine the implementation, strengthen weak areas and resolve issues before they become part of the finished product.
Carry what was learned into the next iteration, leaving the product in a better position to keep evolving.
Tools / Stack
Tools and technologies currently used across Keizoku projects.
Development
HTML
CSS
JavaScript
Node.js
Workflow
Git
GitHub
VS Code
Command Line
Quality
Requirements Analysis
Functional Testing
Regression Testing
Edge-Case Validation
Automation
PowerShell
Power Automate
Workflow Automation
Process Improvement
AI-Assisted
Implementation
Debugging
Code Review
Rapid Prototyping
Behind Keizoku
Developer
Marvin Lirio
Before I built Keizoku, I spent more than a decade working on the other side of software development — testing products, finding what could go wrong, navigating requirements, and helping teams get software ready to ship.
Over time, that experience changed the way I looked at development. I became just as interested in building the solution as I was in validating it. Keizoku grew from that progression, carrying the same quality-first mindset to development: understand the problem, build with intention, test what you create, and take ownership of what ships.