I'm Yusuke Yamada. A Software Engineer and currently working as a CTO at ispec inc 🏥🖥️.

I'm passionate about technologies that make complex systems understandable and controllable—along with the feedback loops that emerge from them.

My focus areas are Domain-Driven Design for accurate problem domain modeling, and Observability for building correct mental models of system behavior.

Love football ⚽️, music 🎵, books 📚, and coffee ☕️.