Senior Mobile Developer (Web3/Blockchain) Offline

Our customer is a digital finance company building a comprehensive crypto ecosystem powered by Web3 technology. The focus is on enabling seamless interoperability across products to deliver an integrated, user-centric experience that simplifies the complexity of managing digital assets.

We’re looking for a skilled developer to work on a mobile-first, non-custodial crypto wallet that supports 25+ blockchains, including Ethereum, Solana, and Polygon. The app includes features like one-tap staking, NFT management, yield vaults, and seamless cross-chain swaps. It also integrates with hardware wallets for enhanced security.

You’ll collaborate with product managers, backend and mobile developers, and blockchain engineers to build secure, scalable, and high-quality web solutions.

Project stack: React Native, TypeScript, Node.js

Team on the project: Lead Fullstack Developer, Senior Backend Developer, Senior Mobile Developer, QA, PM 

Requirements:
 

• 5+ years of frontend development experience
• Proven experience with React Native, Typescript, JavaScript ES6+, and state management libraries (e.g., Zustand, Redux, MobX)
• Knowledge of Web3.js or similar libraries for blockchain integration
• Experience working in fintech or cryptocurrency platforms
• Experience with the integration and development of RESTful APIs
• Expertise in optimizing frontend performance and debugging complex web applications  
• Experience with Git and CI/CD pipelines
• Knowledge of deployment strategies and tools like GitLab CI
• Familiarity with modern testing frameworks (e.g., Jest, Cypress)
• A solid understanding of testing strategies for frontend code
• Upper-intermediate English level

Responsibilities:
 

• Develop and maintain web-based applications using React Native, TypeScript, and related technologies
• Collaborate with cross-functional teams to design and implement new features in line with the product roadmap
• Apply best practices in frontend development, including performance optimization, testing, and code quality
• Ensure smooth integration with backend APIs and third-party services to deliver a seamless user experience
• Focus on scalable architecture and maintainable code while managing technical debt
• Create and maintain reusable components and libraries to support faster and more consistent development
• Troubleshoot and resolve complex issues to ensure stability and high performance of the applications
• Work closely with QA and DevOps to enhance CI/CD processes and improve test coverage
• Translate design specifications into pixel-perfect, responsive user interfaces in collaboration with the UX/UI team

What we offer: 
 

• Remote working format 
• Flexible working hours
• Informal and friendly atmosphere
• The ability to focus on your work: a lack of bureaucracy and micromanagement
• 20 paid vacation days
• 7 paid sick leaves
• Education reimbursement
• Free English classes

• Psychologist consultations

   

Recruitment process: Recruitment Interview - Technical Interview - Client interview - Final Interview