Yuki Nagai
Application Engineer
Tokyo, Japan
Summary
🤩
Rockstar🎓
Top SchoolYuki Nagai is an Application Engineer based in Tokyo with 11 years of experience building mobile and cross-platform applications using iOS, Android, Flutter, React, and Kotlin, alongside cloud platforms like GCP and AWS. At Recruit since 2014, he combines production mobile development with platform-aware engineering to ship resilient user experiences at scale. He holds a Master’s degree in Computer Science from The University of Tokyo, grounding his practical work in strong academic training. An active open-source contributor, Yuki expanded and hardened a popular UIColor hex-handling library for iOS, adding multiple initializers and comprehensive tests that improved color parsing across hex formats. He brings a pragmatic testing-first mindset and attention to edge cases—skills reflected in his bug fixes for early Xcode betas and thorough test coverage. Curious and detail-oriented, he enjoys improving libraries that make everyday UI development more reliable.
11 years of coding experience
University of Tokyo
Github Skills (4)
swift10
ios10
uicolor10
testing10
Programming languages (16)
Github contributions (5)
yeahdongcn/UIColor-Hex-Swift
Aug 2015 - Oct 2015
Convenience methods for creating color using RGBA hex string.
Role in this project:
Mobile Developer (iOS)
Mobile Developer (iOS)Contributions:6 commits, 8 PRs, 3 comments in 1 month
Contributions summary:Yuki primarily contributed to testing and implementation of the HEXColor library. Their work included adding new initializer methods for different hexadecimal formats and creating extensive tests for various scenarios, including three-digit, four-digit, six-digit and eight-digit hexadecimal color representations with or without alpha values. These changes suggest an active role in expanding the functionality and ensuring the reliability of the UIColor extension for handling hexadecimal color codes. They also fixed some issues relating to Xcode7 beta.
hexstringtintconveniencergba
recruit-lifestyle/TreasureDataSDK
Mar 2016 - Feb 2017
Contributions:4 releases, 18 commits, 3 PRs in 11 months
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