Chiachi Chang
獨立開發者 at Archie Design App LLC
Yilan City, Yilan County, Taiwan
Summary
👤
Senior🎓
Top SchoolChiachi Chang is an experienced indie iOS developer and entrepreneur with 11 years building mobile products, currently shipping apps through his Archie Design App LLC and advising startups on tech. He combines deep Swift/iOS expertise—MVVM, RxSwift, SwiftLint, Coordinator pattern and CI/CD tooling like fastlane—with practical blockchain wallet experience, having maintained multi-chain address support and introduced engineering standards at Grace Intelligent Blockchain. As a former mobile team lead and CTO, he has led hiring, code style adoption, and platform migrations while delivering consumer features like social messaging, POS integrations, and payment flows. Based in Yilan, Taiwan, he blends hacker-scrappy indie product instincts with startup leadership chops and a taste for blockchain primitives. An understated strength: he frequently transforms legacy Objective-C and fragmented toolchains into testable, maintainable Swift architectures that scale.
10 years of coding experience
6 years of employment as a software developer
Bachelor's degree Electrical Engineering, Bachelor's degree Electrical Engineering at Fu Jen Catholic University
Chinese, English
Stackoverflow
150reputation
30kreached
17answers
0questions
Github Skills (60)
objective-c10
ios10
solidity10
keyboard10
xcode10
sliding10
ethereum10
blockchain10
carthage10
swift10
macos10
smart-contracts10
uitextfield10
cocoapods10
messenger9
Programming languages (6)
Github contributions (5)
ArchieR7/Blockchain
May 2019 - May 2021
A blockchain validate project with Node.js
Contributions:5 commits, 3 PRs, 11 pushes in 2 years
node-jsjavascriptblockchainnodejsvalidate
ArchieR7/Leetcode
Apr 2020 - May 2020
Contributions:65 commits, 6 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.