Katsuya Ueki
Software Engineer at 株式会社 サイバーエージェント
Tokyo, Japan
Summary
👤
Senior🎓
Top SchoolKatsuya Ueki is a software engineer based in Tokyo with 8 years of experience designing and delivering high-performance, large-scale systems for real-time bidding and ad tech. He has led cross-functional teams to optimize DSP ad serving platforms, driving measurable gains such as 108% delivery volume increases and cost reductions exceeding targets by up to 178%. Comfortable across backend architecture, API design, and AWS optimization, he combines hands-on implementation with technical leadership to reduce technical debt and accelerate development. Notably, he’s built subscription and layered-architecture solutions from scratch and introduced testing mocks and cost-saving AWS improvements that scaled fast-growing services. He holds a BE in Mechanical Engineering from Aoyama Gakuin University and maintains an active GitHub presence for ongoing experimentation.
8 years of coding experience
3 years of employment as a software developer
Bachelor of Engineering - BE, Mechanical Engineering, Bachelor of Engineering - BE, Mechanical Engineering at Aoyama Gakuin University
English, Japanese
Github Skills (11)
google-chrome8
golang6
chrome-extension6
chrome6
toolchain6
cli5
package-manager4
dependency-management4
dependency-manager4
firebase3
ios1
Programming languages (5)
Github contributions (5)
k-ueki/k-ueki.github.io
Jan 2019 - Mar 2020
Contributions:79 PRs, 207 pushes, 2 branches in 1 year 1 month
k-ueki/twitter-manager
Jul 2019 - Apr 2020
個人的なtwitterツール
Contributions:60 PRs, 69 pushes, 3 branches in 9 months
typescripttwitter
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