<p><strong>About Us</strong><br><strong>Scrambly </strong>is one of the fastest-growing adtech startups in the world, featured in the AppsFlyer Performance Index and Singular ROI Index in just 3.5 years.<br><br>We’re growing 250%+ YoY across revenue, team, product, and technology — fully bootstrapped and profitable.<br><br>We’re building the future of app discovery: a reward-powered alternative to the App Store and Google Play. Our loyalty-driven ecosystem connects millions of users with the world’s top apps and delivers unmatched, ROI-focused growth for mobile advertisers.<br><br>Our mission is to build a true alternative to traditional app stores — fueled by rewards and data — and create a new, performance-first growth engine for mobile app advertisers.<br><br><strong>About the Role</strong><br>We are looking for an experienced<strong> Senior React Native Engineer</strong> to join the Scrambly mobile team and help build and scale our app for iOS and Android. In this role, you will take full ownership of complex, high-impact features for a high-traffic platform serving millions of users globally. You will also contribute to our web platform built on Next.js, making cross-platform versatility a key part of the role.<br><br>Your primary focus will be on writing performant, well-architected TypeScript code within a modern React Native stack. You will play a key role in maintaining app stability, keeping the application fast and reliable. This position offers a direct opportunity to impact business metrics by reducing technical debt and driving performance improvements across the platform.<br><br>Success in this role requires strong cross-functional collaboration. You will work directly with Backend, QA, and Product teams to clarify requirements, solve complex engineering challenges, and deliver a seamless UX. Additionally, you will actively contribute to architectural discussions, helping to shape the technical direction of the product alongside the mobile team lead and other senior engineers.<br><br><strong>Key Responsibilities</strong></p>
<ul><li><strong>Design & Implementation:</strong><ul><li>Develop and maintain high-quality cross-platform applications using React Native and TypeScript</li><li>Build reusable UI components and highly performant lists (utilizing tools like FlashList or FlatList) that strictly adhere to design specifications</li><li>Integrate mobile apps with backend services via RESTful APIs and WebSockets to ensure real-time data synchronization</li><li>Debug platform-specific issues using Xcode and Android Studio, and write or modify native modules (Swift/Kotlin) when standard libraries are insufficient</li></ul></li><li><strong>Engineering Standards & Quality:</strong><ul><li>Champion code quality by writing clean, testable TypeScript code and actively participating in peer code reviews to ensure standards for readability and maintainability are met</li><li>Contribute to the long-term health of the codebase by identifying and fixing technical debt and improving overall test coverage</li><li>Actively contribute to architectural discussions, offering well-reasoned input on state management (e.g., Redux Toolkit, Zustand) and navigation patterns to improve scalability</li></ul></li><li><strong>Performance, Reliability & Collaboration:</strong><ul><li>Monitor production stability using tools like Sentry or Crashlytics, proactively identifying and fixing crashes or errors</li><li>Optimize app performance by focusing on specific metrics such as frame rates, memory usage, app size, and battery consumption</li><li>Own and evolve CI/CD pipelines to ensure smooth and reliable releases to the App Store and Google Play</li><li>Collaborate effectively with non-technical stakeholders to explain technical constraints and propose viable solutions<br></li></ul></li></ul>
<p><strong>Requirements</strong></p>
<ul><li>5+ years of professional software engineering experience, with at least 4 years strictly focused on React Native development</li><li>Strong proficiency in <strong>TypeScript </strong>and the React Native ecosystem (CLI, Hermes, debugging tools)</li><li>Deep understanding of iOS and Android build systems (Gradle, Pods, signing/provisioning). You must have the ability to both read and write native code (Swift/Kotlin) to debug platform-specific issues</li><li>Deep expertise in modern React patterns (Functional Components, Hooks) and state management libraries (Redux Toolkit, Zustand, or TanStack Query), with a track record of making and defending</li><li>Proven experience writing unit and integration tests using Jest and hands-on experience with End-to-End (E2E) testing using tools like Maestro or Detox</li><li>Ability to explain technical concepts clearly to diverse teams</li><li>Experience with <strong>Next.js</strong> is a strong advantage. Candidates without prior Next.js experience are welcome, provided they demonstrate a solid React foundation and a clear willingness to learn</li><li><strong>English:</strong> <strong>Upper-Intermediate (B2)</strong> or higher. You need to be able to communicate clearly in English (written and spoken) to work effectively in an international team and participate in architectural discussions</li></ul>
<p><strong>Nice to Have</strong></p>
<ul><li>Experience launching and maintaining a B2C app with 100k+ Monthly Active Users (MAU)</li><li>Hands-on experience writing Native Modules or JSI/TurboModules from scratch</li><li>Familiarity with mobile analytics tools (Segment, Amplitude) and A/B testing implementation</li><li>Experience with automation tools like Maestro or Appium</li><li>Knowledge of backend fundamentals (Node.js) to debug API integrations effectively<br></li></ul>
<p><strong>What We Offer</strong></p>
<ul><li><strong>Scale & Impact:</strong> Your code will impact millions of users globally. Performance optimizations you implement will translate into immediate value and improved user experience</li><li><strong>Modern Stack:</strong> Work with the latest React Native tools and standards (TypeScript, Hermes, etc.) without being bogged down by legacy spaghetti code</li><li><strong>Growth Culture:</strong> A collaborative environment with rigorous code reviews and knowledge sharing — we value the best idea, regardless of title or seniority</li><li><strong>Ownership:</strong> A high level of ownership where you can see your features go live quickly in a fast-paced environment</li><li>Full-time & fully remote position</li><li>15 days of paid vacation days</li><li>5 days of paid days off</li><li>5 days of paid sick leave</li><li>Maternity/Paternity leave</li><li>National holidays based on the country of your stay</li></ul>
