Hiroki Nagasawa
Software Engineer (iOS Developer) at Doist
Kobe, Japan
Summary
👤
Senior🎓
Top SchoolHiroki Nagasawa is an experienced iOS and macOS engineer with 11 years building consumer and healthcare apps, currently shipping features and improving CI/CD for Todoist and Twist at Doist. He combines deep Swift and Objective-C knowledge with backend experience (Ruby, PHP) and reactive patterns like RxSwift, gained across startups and mid-size teams. Based in Kobe, Japan, he also founded Blue Comet Labs in 2022, signaling an entrepreneurial bent alongside hands-on product development. His background in applied physics informs a pragmatic, security-minded approach to app architecture and API design.
11 years of coding experience
4 years of employment as a software developer
Bachelor's degree, Department of Applied Physics and Physico-Informatics, Bachelor's degree, Department of Applied Physics and Physico-Informatics at Keio University
Japanese, English
Stackoverflow
762reputation
137kreached
26answers
3questions
Github Skills (183)
programming-language10
beautifier10
authentication10
abstraction10
sqlite-database10
ruby10
automation10
menu10
remote-config10
csv-parsing10
linter10
linting10
firebase10
firebase-authentication10
rxswift10
Programming languages (9)
Github contributions (5)
pixyzehn/pixyzehn.com
Dec 2016 - Feb 2023
Just another Jekyll static website
Contributions:3 releases, 259 reviews, 1071 commits in 6 years 2 months
jekylljekyll-themepixyzehnstatic-site
pixyzehn/currency-converter
May 2021 - Jan 2023
Contributions:5 releases, 44 commits, 44 pushes in 1 year 8 months
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