Jieyi Wu
Senior Android Engineer at Mercari, Inc.
Tokyo, Japan
Summary
👤
Senior🎓
Top SchoolJieyi Wu is a Senior Android Engineer based in Tokyo with 11 years of software experience spanning embedded systems, mobile (Android/iOS) and backend services. He has a strong track record of modernizing large codebases—consistently reducing code size and test redundancy while boosting test coverage and delivery productivity across teams at Mercari, PayPay and others. Jieyi excels at building maintainable architectures (Clean, MVVM + repository) and CI/CD workflows, and he’s repeatedly shortened onboarding time through clear documentation and knowledge sharing. He pairs hands-on implementation—shipping consumer apps, SDKs and native modules for React Native—with leadership in mentoring and process design that measurably cuts release and maintenance costs. Beyond mobile, he’s broadened his skill set into front-end web development and machine learning, and contributes to open-source Android projects in his spare time. Colleagues rely on him to turn messy legacy systems into testable, decoupled platforms that scale.
11 years of coding experience
8 years of employment as a software developer
Bachelor of Science (BS), Computer Science and Information Engineering, Bachelor of Science (BS), Computer Science and Information Engineering at Chung-Hua UniversityMaster of Science (MS), Computer Science and Information Engineering, Master of Science (MS), Computer Science and Information Engineering at National Central University
Chinese, Japanese, English
Github Skills (89)
tornadofx10
detekt10
ktor10
compose-desktop10
gradle-plugin10
playing10
compose10
clean-architecture10
kodein10
music10
lint10
android-app10
counting10
kotlin10
caching10
Programming languages (10)
Github contributions (5)
pokk/algorithm
Feb 2016 - Nov 2020
Contributions:1 PR, 87 pushes, 1 branch in 4 years 10 months
pokk/Mailer
Feb 2016 - Apr 2021
Auto mail to someone
Contributions:1 release, 1 PR, 35 pushes in 5 years 3 months
mailemailsmtp
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