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Paul Kuzin
@polykuzin
Senior iOS Developer, Swift and SwiftUI, iPhone Apps and Subscriptions
Georgien
Englisch, Russisch, Ukrainisch
Über mich
Senior iOS developer, 6 years shipping iPhone apps used by millions. I build new apps and MVPs in Swift and SwiftUI and publish them to the App Store, add features to existing apps, integrate APIs and Firebase, set up subscriptions and paywalls, fix bugs, crashes and App Store rejections. Recent work: sole iOS developer of the Etrain app by Tutu (4.7 stars, 1.17M+ active users), iOS Tech Lead of the official Moscow Metro app (AVA Digital Awards Platinum), and my own Tube Map app. Daily updates, TestFlight builds, clean tested code.
Kompetenzen
Paul Kuzin
offline •
Meine Dienstleistungen
Verwaltung mobiler Stores
I will publish your ios app and fix app store rejections
iOS-App-Entwicklung
I will add subscriptions and in app purchases to your ios app
Portfolio
Arbeitserfahrung
Senior iOS Engineer
Tutu
Jun 2024 - Present • 2 yrs 5 mos
Sole iOS developer for suburban rail at a major travel super-app: the Etrain app (4.7 stars, 1.17M+ active users) and the rail section of the super-app. Also shipped the Tours and Cars sections. - Long-distance train offers inside Etrain: a new revenue stream, monthly ticket volume +31% within 3 months of launch - Unified checkout: tariff selection in SwiftUI with snapshot tests and funnel analytics - Tours: native tour search from scratch, rolled out behind an A/B test - Widget with App Intents, native ads with A/B tests, in-app payments; owned releases 5.0-5.9 - Architecture refactor, SwiftLint, faster tests
iOS Engineer (independent)
mmthstudio
Jan 2020 - Present • 6 yrs 10 mos
Two-person app studio with own products in the App Store and Google Play. - Tube Map (London Underground): offline navigation, custom Metal rendering, widgets, Live Activities, subscriptions; Android, web client and Go backend - Knit It and Luvva: SwiftUI apps with onboarding and paywall funnels - CI on GitHub Actions, snapshot tests, automated TestFlight releases
iOS Tech Lead
Moscow Metro
Oct 2020 - Jun 2024 • 3 yrs 8 mos
Tech lead for 4 iOS developers on the official Moscow Metro app. The app won AVA Digital Awards Platinum (Public Sector, 2021). - Led the Personal Account module end to end (~80 screens) - FacePay biometric trip tracking and personal trip log - Card scanning with the Vision framework, QR top-up, NFC transit card linking - Virtual transit card: onboarding + KYC, auto-top-up - Solo-built the App Clip with Apple: ~180 MB down to 10 MB - Solo-built the Expo 2020 Dubai exhibition app (iPad + iPhone): 100% crash-free, 40,000+ unique users in 2 weeks - First CI/CD pipeline (GitLab CI + Fastlane): monthly to weekly releases - 50+ technical interviews for iOS hires
