Taishi Yamasaki is a San Francisco–based Chief Executive Officer and full-stack mobile engineer with 11 years of experience building consumer apps and leading product teams. He co-founded Waffle Journal to reconnect long-distance families and has hands-on expertise shipping Android apps, from UI/UX refinements in popular conference apps to driving MangaTime to a 1M+ download product. Taishi blends technical depth—Kotlin, RxJava, CI automation, SDK design—with founder-level product instincts and developer education experience as an instructor. Now leading AlphaByte, he couples startup growth instincts from accelerator participation with a practical history of contracting and freelance delivery across iOS, Android, and backend work. An observer of craft and user feeling (his tagline: "Do More of What Makes You Feel Alive"), he often surfaces small UX improvements that materially improve engagement.
11 years of coding experience
8 years of employment as a software developer
Computer Science, Computer Science at Aptech Limited at IWP Centre
Accelerator Participant, Accelerator Participant at Yellow
Computer Science, Computer Science at Mission College
高校, 高校 at 大阪教育大学附属高等学校天王寺校舎
Bachelor's degree Mechanical Engineering, Bachelor's degree Mechanical Engineering at Kansai University
English Language and Literature/Letters, English Language and Literature/Letters at Advance English Academy
The Official Conference App for DroidKaigi 2018 Tokyo
Role in this project:
Mobile Developer (Android)
Contributions:9 commits, 1 PR, 3 comments in 1 day
Contributions summary:Taishi primarily contributed to the Android application for the DroidKaigi 2018 conference. The commits demonstrate the addition of RecyclerView extensions for adding dividers and scroll listeners. The user refactored the `addDivider` function to `setDivider` and applied these changes across multiple fragments to enhance the visual presentation of session lists. This work directly addresses UI/UX improvements by refining the list components and improving user navigation within the app.
Contributions:11 commits, 9 pushes, 1 branch in 1 month
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.