Tech Lead React Native

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Tech Lead React Native based in Brazil.

We are looking for a highly experienced mobile engineering leader to drive the modernization and evolution of a complex application ecosystem. This role will lead the technical reconstruction of a mobile platform using React Native, establishing scalable architecture, coding standards, and deployment practices. The professional will act as a key bridge between legacy systems, product teams, and new engineering squads, ensuring a smooth and secure transition. You will have the opportunity to influence technical decisions, improve performance, and shape the future of a high-impact digital product. The role requires deep technical expertise, strong leadership abilities, and the ability to balance innovation with business priorities. You will work in a challenging environment where quality, security, scalability, and engineering excellence are essential.

Accountabilities:: The Tech Lead React Native will be responsible for defining the technical direction of the mobile application, guiding engineering practices, and ensuring the successful delivery of a scalable and high-performance platform. The role combines hands-on development, architectural leadership, mentorship, and cross-functional collaboration.

Lead the technical reconstruction of the mobile application using React Native, defining architecture principles, development standards, and implementation strategies.

Design scalable application structures that support multiple teams working efficiently on the same platform through approaches such as modular architecture, monorepos, or feature-based organization.

Establish best practices for code quality, performance optimization, maintainability, and long-term scalability.

Guide the migration from legacy native technologies while ensuring business continuity and minimizing operational risks.

Collaborate with Product, Engineering, and business stakeholders to translate technical decisions into business impact, timelines, and risk assessments.

Support the integration between React Native and native mobile technologies, ensuring compatibility with existing solutions and security requirements.

Implement and improve CI/CD pipelines, automated testing processes, and mobile application release workflows for App Store and Google Play environments.

Provide technical mentorship through code reviews, knowledge sharing, and coaching to elevate the engineering team’s capabilities.

Promote secure mobile development practices, including data protection, authentication mechanisms, and application hardening strategies.

Help establish a culture of engineering excellence, collaboration, and continuous improvement.

Requirements:

The ideal candidate is a senior mobile engineer with strong React Native expertise, experience leading complex technical initiatives, and the ability to communicate effectively with both technical and business audiences.

Deep expertise in React Native, including the latest architecture concepts such as Fabric and TurboModules.

Strong experience with state management solutions such as Zustand, Redux, or Context API, as well as advanced React Native hooks and performance optimization techniques.

Proven experience designing scalable mobile architectures for large applications, including modularization strategies and multi-team development environments.

Solid understanding of native mobile development concepts, including the ability to read and understand Swift/Objective-C (iOS) and Kotlin/Java (Android) code.

Experience creating or integrating bridges between React Native and native modules.

Practical knowledge of mobile security practices, including Keychain/Keystore, SSL Pinning, biometric authentication, code obfuscation, and Root/Jailbreak detection.

Experience building and maintaining CI/CD pipelines using tools such as Fastlane, Bitrise, GitHub Actions, or similar platforms.

Previous experience with mobile application migrations, major refactoring projects, or technology transitions in production environments.

Strong understanding of software architecture, engineering best practices, and production-grade development processes.

Experience working with financial applications, fintech platforms, payment solutions, or regulated environments is a strong advantage.

Excellent communication skills, with the ability to explain complex technical topics in terms of business value, risks, and priorities.

Pragmatic mindset with strong decision-making skills and the ability to balance technical excellence with delivery needs.

Leadership profile with experience mentoring developers and conducting constructive technical reviews.

Ability to collaborate diplomatically with existing teams during technology transitions and organizational changes.

Benefits:

Fully remote work opportunity.

Opportunity to lead the modernization of a high-impact mobile platform.

Significant technical ownership and influence over architecture decisions.

Work on complex digital products requiring high standards of security, scalability, and performance.

Collaborative environment with opportunities to mentor and grow engineering teams.

Exposure to challenging projects involving innovation, technology transformation, and business-critical applications.

Professional growth opportunities within a technology-focused organization.

Flexible work model designed to support productivity and autonomy.

How Jobgether works: We use an AI-powered matching process to ensure your application is reviewed quickly, objectively, and fairly against the role's core requirements. Our system identifies the top-fitting candidates, and this shortlist is then shared directly with the hiring company. The final decision and next steps (interviews, assessments) are managed by their internal team. We appreciate your interest and wish you the best!  Why Apply Through Jobgether?    Data Privacy Notice: By submitting your application, you acknowledge that Jobgether will process your personal data to evaluate your candidacy and share relevant information with the hiring employer. This processing is based on legitimate interest and pre-contractual measures under applicable data protection laws (including GDPR). You may exercise your rights (access, rectification, erasure, objection) at any time.     #LI-CL1