React Native Engineer

This is a fully remote position, open to applicants in Poland, +3 more countries.

📋 Description

• Design, develop, and sustain high-performance, scalable React Native applications for both iOS and Android platforms.

• Work in collaboration with Product, Design, and Backend teams to establish requirements and launch new features.

• Engage and cooperate with external partners, such as banks, SDK vendors, and third-party providers, to facilitate integrations, troubleshoot issues, and ensure technical compatibility.

• Incorporate and manage third-party SDKs, native modules, and Web3/crypto libraries.

• Implement Web3 functionalities, encompassing wallet features, signing, and interactions with smart contracts.

• Ensure the secure handling of sensitive information, including private keys and seed phrases, while adhering to mobile security best practices.

• Maintain superior application performance, responsiveness, and overall quality of the app.

• Identify and address performance bottlenecks, defects, and reliability challenges.

• Develop and uphold extensive unit, integration, and E2E test coverage.

• Collaborate with CI/CD pipelines to facilitate automated building, testing, and deployment processes.

• Investigate, assess, and introduce new technologies and best practices to enhance product quality and development efficiency.

• Engage in the complete application development lifecycle, from initial concept to production deployment.

⛳️ Requirements

• Over 5 years of experience in mobile development, specifically focusing on React Native.

• Profound understanding of React Native architecture, with preferred familiarity with Fabric and TurboModules.

• Demonstrated capability to design, develop, and maintain high-performance, scalable mobile applications.

• Expertise in optimizing application performance, debugging, and profiling.

• Strong proficiency in TypeScript and experience in enforcing strict typing practices.

• Experience in publishing and maintaining applications on the App Store and Google Play.

• Proven expertise in identifying, analyzing, and resolving application bottlenecks and performance challenges.

• Experience in establishing and maintaining robust testing strategies (unit, integration, E2E).

• Ability to research, evaluate, and integrate new technologies and best practices.

• Strong understanding of mobile security principles, secure data storage, and anti-fraud mechanisms.

• Experience working in fast-paced environments and making informed decisions amid uncertainty.

• Proficiency in English at an upper-intermediate level or higher.

• Nice to have: Practical experience in crypto & blockchain development (crypto wallets, signing, transactions).

• Nice to have: Strong understanding of Web3 technologies, including WalletConnect, EVM networks, RPC, and smart contract interactions.

• Nice to have: Experience with secure key storage, seed phrase management, encryption, private key handling, and best practices in cryptography.

• Nice to have: Experience in integrating complex SDKs/APIs, bridging native iOS/Android SDKs, and working with Web3/crypto libraries.

• Nice to have: Familiarity with ERC standards and token metadata structures.

🏝️ Benefits

• Remote flexibility: Work in an environment that suits you best - we trust you to deliver results.

• Competitive salary along with benefits that truly matter (medical, wellness, learning opportunities).

• Ownership opportunities: Identify a problem worth resolving? Take charge. We support intelligent risks over bureaucratic constraints.

• AI enhancement: We utilize AI to augment your capabilities - enhancing your performance rather than replacing it.

• English classes available.

• Opportunities for professional development.

• Well-being support provided.

• Clear paths for career progression, not just lateral movements.

• Cooperative teammates: No ignored messages, no “not my problem” attitudes.

• Supportive culture: When challenges arise, assistance is available. When issues occur, we resolve them together.

• Opportunities for regular meetups.

• Engaging tech talks.

• Genuine human connections: building real relationships beyond work.