Devox Software

React Native Developer (Blockchain/Crypto)

React Native Developer (Blockchain/Crypto)

 

The client is an innovative global fintech leader behind USDT, the world’s largest and most widely used stablecoin.

We are looking for a React Native Developer with solid experience in blockchain/crypto/ wallets to help us build secure applications.

 

Responsibilities

  • Design, develop and maintain mobile applications using React Native (iOS & Android)
  • Integrate applications with Bitcoin / Web3 / blockchain APIs and wallet backends
  • Work with wallet functionality: addresses, balances, transactions, seed phrases, private keys (never exposing them insecurely)
  • Implement mobile security best practices: secure storage, encryption, device integrity checks, protection from common attack vectors
  • Collaborate with backend, security, and product teams to design features for decentralized and crypto-enabled products
  • Participate in code reviews, architecture discussions, and technical decisions
  • Write clean, testable, well-documented code

 

Requirements

  • 4+ years of experience in in React Native
  • Strong knowledge of TypeScript / JavaScript and the React ecosystem
  • Proven experience with blockchain / crypto / wallet applications
  • Experience working with Bitcoin, Web3, wallets, private keys, or similar technologies
  • Good understanding of mobile security: secure storage, key management, encryption, secure communication
  • Understanding of decentralized systems and concepts like public/private keys, transactions, addresses, signing, gas/fees, etc.
  • Experience integrating REST/WebSocket APIs and working with real-time data
  • Comfortable working in a remote, distributed team, communicating in English (spoken and written)

 

Nice to have

  • Experience with hardware wallets or secure elements
  • Knowledge of Layer 2 solutions, sidechains, or Lightning Network
  • Experience with performance optimization and profiling for mobile apps
  • Background in cryptography or security engineering

Required skills experience

React.js

Required domain experience

Blockchain / Crypto 4 years

Required languages

English B2 - Upper Intermediate
React Native, Web3
Published 18 November
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