Koji KUSANAGI

A music composer / A software engineer / An artistic experimentalist

As a Music Composer

I am a composer with a background in classical training, self-taught guitar, and live performance.

In the late 1990s, I gained professional experience in composition, recording, and mixing, founded the MIDI audio stock site nerve-noise.space, and began paid composition work.

After a period of reduced activity due to a hearing-related illness, I gradually returned to music production and, since 2014, have been composing again on a contract basis for select clients.

In 2026, I am gradually restarting composing for myself.

As a Software Developer

I am also a software engineer with over 25 years of experience, ranging from start-up and freelance development to large-scale Internet services. From 2005 to the present, I have worked for one of the largest internet companies in Japan, focusing on high-traffic distributed systems as a Product Architect and an Engineering Manager.

My work has focused on developing reliable and scalable systems. I am currently a Senior Software Engineer who specialize in Agile with Guardrails and AI-driven productivity enhancement. I am also specialize in identifying bottlenecks in the large development process through metrics, addressing organizational issues. and improving productivity.

Detailed career summary will be found at: