Lead Software Engineer - Mobile Development (Crypto Wallets)

This position is posted by Jobgether on behalf of a partner company. We are currently looking for a Lead Software Engineer - Mobile Development (Crypto Wallets) in Brazil.

In this role, you will lead the development of cutting-edge mobile applications focused on crypto wallets and decentralized finance features, delivering seamless and secure user experiences at scale. You will work in a highly collaborative, globally distributed environment alongside senior engineers, product leaders, and designers. Combining hands-on development with technical leadership, you will shape architecture, guide best practices, and mentor a team of engineers. The position offers the opportunity to build high-performance, intuitive applications used by a diverse global audience. You will also contribute across the stack when needed, ensuring end-to-end delivery of mobile-driven features. This is a unique opportunity to influence the future of digital finance through innovative mobile technologies.

• Lead and mentor a team of mobile engineers, driving technical excellence, best practices, and high-quality delivery
• Design and develop advanced cross-platform mobile applications using React Native for both iOS and Android
• Define and own mobile architecture, including state management, navigation, modularization, performance, and security standards
• Review code and ensure alignment with architectural decisions and quality benchmarks
• Collaborate closely with backend engineers to integrate APIs, SDKs, and services into mobile applications
• Contribute to backend development when necessary to support mobile features and unblock delivery
• Partner with product managers and designers to deliver innovative, user-centric solutions
• Drive decisions around frameworks, tools, and development patterns to optimize performance and scalability

Requirements:

• Extensive experience with React, React Native (especially Expo), Redux, and modern JavaScript (ES6+)
• Strong proficiency in mobile development concepts, including performance optimization and cross-platform design
• Experience building and maintaining CI/CD pipelines for mobile applications
• Familiarity with modern development tools, front-end workflows, and build systems
• Hands-on experience with native modules (C++), WebSockets, and RESTful APIs
• Knowledge of native mobile development using Swift/Objective-C (iOS) or Kotlin/Java (Android)
• Proven track record of leading or mentoring mobile engineers and owning large-scale application architecture
• Experience with backend technologies such as Node.js, with the ability to support API and service development
• Strong problem-solving skills and ability to make informed technical decisions in a fast-paced environment
• Comfortable working across the full stack while maintaining deep expertise in mobile engineering

Benefits:

• Fully remote work environment with global collaboration opportunities
• Competitive compensation aligned with experience and impact
• Opportunity to work on innovative products in the fast-evolving fintech and blockchain space
• Access to cutting-edge technologies and complex technical challenges
• Flexible work culture that supports autonomy and productivity
• Continuous learning and professional growth opportunities
• Work alongside highly skilled, international engineering teams