React Native Engineer (Web3)

Location: Remote, Belarus

Company

hirify.global is an AI-focused technology company with more than 250 employees across the US and Europe, building real-world systems for clients including Procter & Gamble and Shutterstock.

What you will do

• Architect, build, and maintain high-performance, scalable React Native applications for iOS and Android.
• Collaborate with Product, Design, Backend, external partners, banks, SDK vendors, and third-party providers to define requirements, deliver features, support integrations, and resolve technical issues.
• Integrate and maintain third-party SDKs, native modules, and Web3/crypto libraries, including wallet features, signing, and smart contract interactions.
• Protect sensitive data such as private keys and seed phrases while applying mobile security and anti-fraud best practices.
• Optimize application performance, responsiveness, reliability, and quality; identify and resolve bottlenecks and defects.
• Maintain unit, integration, and E2E test coverage and use CI/CD pipelines for automated build, testing, and deployment across the application lifecycle.

Requirements

• 3+ years of mobile development experience focused on React Native.
• Understanding of React Native architecture, with exposure to Fabric and TurboModules preferred.
• Ability to architect, build, and maintain high-performance, scalable mobile applications.
• Expertise in performance optimization, debugging, profiling, and resolving application bottlenecks.
• Knowledge of TypeScript and experience enforcing strict typing practices.
• Experience publishing and maintaining applications in the App Store and Google Play.
• Experience building and maintaining unit, integration, and E2E testing strategies; researching and introducing technologies and best practices; and making informed decisions in fast-paced environments.
• Strong understanding of mobile security principles, secure data storage, and anti-fraud mechanisms.
• English at Upper-Intermediate level or higher.

Nice to have

• Hands-on experience with crypto and blockchain development, including crypto wallets, signing, and transactions.
• Understanding of WalletConnect, EVM networks, RPC, smart contract interaction, ERC standards, and token metadata structures.
• Experience with secure key storage, seed phrase handling, encryption, private key management, and cryptography best practices.
• Experience integrating complex SDKs and APIs, bridging native iOS and Android SDKs, and working with Web3/crypto libraries.

Culture & Benefits

• Remote flexibility and autonomy to choose where and how to work.
• Competitive compensation with medical, wellness, and learning benefits.
• English classes, professional development, and well-being support.
• Ownership opportunities, career progression, and support for informed risk-taking.
• Supportive, open, and accountable collaboration with responsive teammates, regular meetups, and tech talks.