Jinkyu Kim
IOS Software Engineer at Viva Republica
Seoul Incheon Metropolitan Area South Korea
Summary
👤
Senior🎓
Top SchoolJinkyu Kim is an iOS software engineer with 10 years of mobile experience, specializing in iOS for the past 5+ years and earlier Android security research. He’s shipped and stabilized five GE Appliances iOS apps and currently improves UX and automates iOS delivery for Toss, a high‑scale consumer payments app used by millions in South Korea. His work spans networking, encryption, and IoT connectivity (Wi‑Fi, Bluetooth, NFC, Zigbee), where he doubled network performance through targeted refactoring and optimized encryption logic for faster app startup. At Samsung S1 he combined research and engineering to build enterprise mobile access control using HCE and smartcard-based cryptography. Known for introducing CI/Agile tooling and integrating teams’ codebases via CocoaPods, he blends security-first thinking with pragmatic product delivery.
10 years of coding experience
4 years of employment as a software developer
Bachelor's degree, Electrical Engineering, Bachelor's degree, Electrical Engineering at 서울대학교 (Seoul National University)
English, Korean
Stackoverflow
1,009reputation
98kreached
13answers
1question
sequence
top-5%
Github Skills (71)
render10
ios-library10
specification10
xcodeproj10
animation10
bodymovin10
yaml10
carthage10
swift10
cli10
xcode-plugin10
layout10
xcode10
macos10
layout-engine10
Programming languages (6)
Github contributions (5)
tosspayments/ConnectPay
Apr 2021 - Jan 2023
Contributions:2 releases, 6 PRs, 114 pushes in 1 year 9 months
tosspayments/payment-sdk-ios
Sep 2022 - Feb 2024
Toss Payments iOS SDK
Contributions:14 reviews, 91 PRs, 191 pushes in 1 year 5 months
paymentsios-sdkin-app-purchasesdktoss
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