Der Optik
副社長CTO at PicApp inc. (DMM Group)
Chiyoda, Japan
Summary
👤
Senior🎓
Top SchoolDer Optik is a seasoned software leader and entrepreneur with 12 years building mobile-first products and backend systems from Japan's Chiyoda. As co-founder and CTO of PicApp he architected and single-handedly operated the backend that securely stored billions of photos powering the 2M-download iOS app POOL and led its acquisition by DMM.com, later helping launch hit apps like TELLER. He previously founded Taxbird, shipping an OCR-driven receipt-to-accounting system, and has hands-on experience across Android, iOS, Java/Spring APIs and Ruby on Rails. Comfortable shipping end-to-end solutions, he combines product-minded engineering with scalable operational practices—often running large services with lean teams. A pragmatic technologist, he’s interested in mobile applications, web scraping and testing, and blends research into practical features such as recommendation engines and automated OCR pipelines.
11 years of coding experience
2 years of employment as a software developer
Computer Science, Computer Science at 明石工業高等専門学校
Chinese, Japanese
Github Skills (51)
objective-c10
ios10
android-development10
android-library10
xcode10
carthage10
swift10
macos10
cocoapods10
kotlin9
kotlin-android9
android8
java8
normal7
progress-view7
Programming languages (5)
Github contributions (5)
kaiinui/android-awesome-libraries
Aug 2014 - Nov 2014
Contributions:72 commits in 3 months
android-libraryandroidkotlinandroid-developmentkotlin-android
kaiinui/jsonschema-schema.org
Dec 2014 - Dec 2014
Contributions:7 commits in 1 day
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