Koji Hisano
Company Director at NTT Resonant Technology Inc.
Nagano, Japan
Summary
👤
Senior🎓
Top SchoolKoji Hisano is a seasoned mobile systems engineer and company director with 11 years of experience building VMs, emulators, and developer tools for Android, Java ME and Skype ecosystems. He founded Katomakku and now leads Remote TestKit at NTT Resonant Technology, enabling remote access to real Android devices for testing at scale. His technical highlights include implementing a clean-room Dalvik VM in pure Java, an early Dalvik JIT in C/ARM before Android 2.2, and creating Skype4Java—the official Java API wrapper widely adopted across products and research. He has a rare blend of low-level expertise (VMs, JITs, assembly) and product instincts, having shipped emulators, a Flash Lite player on J2ME and a MIDP/DoJa emulator that enabled Opera Mini on Japanese feature phones. Based in Nagano, Japan, he combines hands-on engineering with entrepreneurial leadership and a long history of open-source and platform-level innovation.
11 years of coding experience
12 years of employment as a software developer
The University of Electro-Communications
Stackoverflow
356reputation
8kreached
1answer
0questions
Github Skills (20)
kotlin10
bulkhead10
fallback10
proguard10
java9
timeout9
maven-plugin9
minification9
obfuscation9
fault9
maven9
fault-tolerance9
scala8
jvm8
circuit-breaker7
Programming languages (6)
Github contributions (5)
hisano/wasm-interpreter-on-java
Apr 2022 - May 2022
WebAssembly Interpreter written in Java (Java 8, Pure Java, No library dependencies)
Contributions:177 commits, 1 PR, 14 pushes in 9 days
interpreterjavajava8purejavawasm
hisano/aosp-research-toolkit
Jul 2016 - Aug 2018
Contributions:13 commits, 12 pushes, 1 branch in 2 years 1 month
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