Senior React Native Developer

Company: Optim System Ltd

Work format: remote

City and office address: fully remote; legal address — Office 10, AJS House, Units 11/12, Baldock Industrial Estate, London Road, Baldock, Hertfordshire, SG7 6NG, UK

Employment: full-time

Salary range: from $2200-2500 net

Job description: We are looking for a Senior React Native Developer (CLI, no Expo). Tasks: development and support of an iOS/Android application for a fintech product (onboarding, KYC/verification, payments/transfers, card operations); networking (REST, authorization/refresh, caching, retries, error handling); multilingual support (i18next preferred); SDK integrations (KYC/cards/notifications/reporting); security (secure storage, biometrics, session protection), releases/quality (TestFlight/Google Play, crash monitoring/metrics), participation in reviews and planning.

Requirements: JS (ES2020+), TypeScript, React Native CLI 2+ years, MobX (mandatory); React hooks/memoization; Xcode/Simulator, CocoaPods, Android Studio/Emulator, Gradle, Metro, deep links, push notifications; Sentry/Firebase; CI/CD (GitHub Actions/Bitrise), Fastlane; English for documentation/correspondence.

Pluses: Jest/RTL/Detox, native modules (Swift/Kotlin/Java), Reanimated/Gesture Handler/Vision Camera, FSD; fintech experience (Apple Pay/Google Pay, tokenization, FCM, AppCenter/Sentry, CodePush/OTA), Keychain/Keystore; SSO (Keycloak/Casdoor).

Contacts: recruiter contact