Kengo is an end to end web engineer from Japan. He codes for both client-side and server-side, and looks over infrastructure as DevOps. He is also a payment freak with expertise in credit card payment processing. Running some OSS projects and keep contributing to OSS 5+ years.
Indiegogo is the place for entrepreneurial projects to move quickly from concept to market, amplified by a community of backers who believe the world benefits when every idea gets an equal shot at success.
WebPay is a startup that offers credit-card payment gateway with developer friendly API and SDKs. The company is acquired by LINE in 2015.
Cookpad runs the biggest cooking recipe sharing service.
RubyKaigi is an annual conference for Ruby programmers in Japan.
Excellent achiever among the graduates.
Guest post on Apple Pay's business structure with regard to credit-card system for Japanese.
Featured article about Web payments. Gihyo is a magazine for Web developers in Japan. Detailed explanation of payment methods and credit-card payment systems and tutorials on how to integrate WebPay, PayPal, Apple In-App Purchase, and Google Play In-App Billing.
Guest post on backend infrastructure of cookpad.com to the Japanese translation of Web Operations from O'Reilly Media.
I had the absolute pleasure of working with Kengo for almost three years. Over the course of those years, I saw the true breadth of his performance as an employee and the staggering depths of his knowledge as a software engineer. Kengo led several key initiatives that would seem daunting to even the savviest of engineers; however, his experience as a seasoned technician and his admirable commitment to collaboration carried him through these initiatives seamlessly. Everything that I know about effectively developing and maintaining front end architecture, I learned from him, and I consider myself incredibly lucky for that fact. Kengo would be a huge value add to any team fortunate enough to welcome him; I earnestly give him my highest recommendation.
I've known Hamasaki-san for about 2 years now, his hard work on RubyKaigi and job are repeatedly visible. I always see him carrying a laptop, and when he stayed with me last year, for 2 weeks all he did was work.. and eat ramen. I'm confident that if I recommend hmsk for any job he would work his hardest no matter what it is.