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Senior React Native Developer - Digital Wallet/Mobile Money Product

emagine • Poland
Remote
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AI Summary

Develop and maintain a secure, high-performance mobile wallet app for emerging markets. Collaborate cross-functionally and optimize for low-end devices. React Native + TypeScript experience required.

Key Highlights
Develop and maintain a secure mobile wallet app
Collaborate with backend teams for seamless API integration
Optimize app performance on low-end devices and poor network conditions
Key Responsibilities
Develop and maintain a mobile application with core features like onboarding, wallet top-up, payments, and transaction history
Collaborate with backend teams to ensure seamless REST API integration and enforce money rules server-side
Implement device-level security measures, ensuring secure token storage and biometric support
Optimize application performance on low-end devices and poor network conditions
Integrate third-party SDKs for enhanced functionalities, such as eKYC and push notifications
Participate in the complete lifecycle of mobile app deployment, including testing, CI/CD processes, and submission to app stores
Adapt the app to multiple country/brand wallets through a white-label codebase
Technical Skills Required
React Native TypeScript Mobile Security (OWASP MASVS)
Benefits & Perks
Up to 128 PLN/h net + VAT (B2B)
Fully remote
Nice to Have
iOS production experience
Familiarity with Flutter or other cross-platform mobile development frameworks
Experience with multi-brand theming and white-label solutions
Comfort in a team utilizing AI for development process enhancement

Job Description


Information about the project:

  • Industry: IT
  • Rate: up to 128 pln/h net + VAT, B2B
  • Fully remote
  • Polish, English

The core purpose of this position is to develop a regulated digital-wallet/mobile-money product tailored for emerging markets, emphasizing high mobile-money adoption, efficient app performance on low-to-mid-tier Android devices, and robust security protocols.

Main responsibilities:

  • Develop and maintain a mobile application with core features like onboarding, wallet top-up, payments, and transaction history.
  • Collaborate with backend teams to ensure seamless REST API integration and enforce money rules server-side.
  • Implement device-level security measures, ensuring secure token storage and biometric support.
  • Optimize application performance on low-end devices and poor network conditions.
  • Integrate third-party SDKs for enhanced functionalities, such as eKYC and push notifications.
  • Participate in the complete lifecycle of mobile app deployment, including testing, CI/CD processes, and submission to app stores.
  • Adapt the app to multiple country/brand wallets through a white-label codebase.

Requirements:

  • Experience in developing and shipping production-level React Native + TypeScript apps.
  • Solid understanding of mobile platform fundamentals, especially for Android.
  • Ability to work with native modules and tackle build issues in both Android and iOS environments.
  • Hands-on mobile security practices and familiarity with OWASP MASVS.
  • Strong experience with REST API integration and JWT authentication.
  • Experience in quality assurance and performance optimization for mobile apps.
  • Background in fintech or high-trust domains where security is paramount.

Nice to have:

  • iOS production experience and knowledge of the wallet or mobile-money sector.
  • Familiarity with Flutter or other cross-platform mobile development frameworks.
  • Experience with multi-brand theming and white-label solutions.
  • Comfort in a team utilizing AI for development process enhancement.

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