Senior Developer

Shopify Shibuya, Tokyo, Japan December 2020 – April 2025

• ・Launched CI infra preventing new timezone/DST flaky tests in core.
• ・Unified all 5+ Shopify Audiences’ API clients for better maintainability.
• ・Migrated first party Google channel from AdWords to Ads API and cut down async onboarding wait time from minutes to under 40 seconds.

Developer

Shopify Shibuya, Tokyo, Japan July 2018 – December 2020

• ・Developed an anti-fraud system that saved millions of USD.
• ・Launched multi-currency orders, with my focus on the order view UI.
• ・Migrated every surface and library to Hong Kong/Macau SAR China.
• ・Became primary maintainer of open source payment_icons Ruby gem.

Developer

Shopify Ottawa, ON, Canada July 2015 – July 2018

• ・Started and led the first internationalization effort outside of checkout.
• ・Co-founded the International team with a small group of developers.
• ・Created, improved, and maintained Ruby libraries for Japanese postal codes and bank information supporting various Japanese features.
• ・Launched Shopify Payments in Japan.

Bachelor of Science (Cum Laude)

Marist University Poughkeepsie, NY, USA August 2011 – May 2015

Major: Information Technology | Minor: Information Systems

Open Source

Have contributed to a variety of open source projects. One highlight is my rails/rails module, ActiveSupport::Testing::NotificationAssertions, which greatly simplified testing ActiveSupport::Notifications. It was featured as one of the favorite Rails pull requests of 2024. Another highlight is my 2025 work in rubygems/rubygems cleaning up legacy Windows code and fixing bugs, benefiting all Ruby developers. The vast majority of my open source contributions are available on my GitHub profile.