Senior React Native Engineer

🚀 Join Our Data Products and Machine Learning Development Remote Startup! 🚀 At MuttData, we are a dynamic startup committed to crafting innovative systems powered by cutting-edge Big Data and Machine Learning technologies. We’re currently looking for a Senior React Native Engineer with strong production experience building and maintaining high-quality mobile applications for both iOS and Android. This role is ideal for someone who has worked in teams of 5+ engineers, taken ownership of architectural decisions, and feels comfortable acting as a senior contributor or tech lead. You will play a key role in shaping mobile architecture, improving performance, and ensuring scalable, maintainable codebases in high-impact environments such as fintech, healthtech, e-commerce, or other high-scale consumer products. If you’re excited about combining strong mobile engineering practices with data-driven products — and consider yourself a data nerd like us — we’d love to connect. 🐶🚀 🚀 What We Do * Leveraging our expertise, we build modern Machine Learning systems for demand planning and budget forecasting. * Developing scalable data infrastructures, we enhance high-level decision-making, tailored to each client. * Offering comprehensive Data Engineering and custom AI solutions, we optimize cloud-based systems. * Using Generative AI, we help e-commerce platforms and retailers create higher-quality ads, faster. * Building deep learning models, we enhance visual recognition and automation for various industries, improving product categorization, quality control, and information retrieval. * Developing recommendation models, we personalize user experiences in e-commerce, streaming, and digital platforms, driving engagement and conversions. 🌟 Our Partnerships * Amazon Web Services * Astronomer * Databricks 🌟 Our Values * 📊 We are Data Nerds * 🤗 We are Open Team Players * 🚀 We Take Ownership * 🌟 We Have a Positive Mindset * 🔍 Curious about what we’re up to? Check out [our](https://blog.muttdata.ai/tag/Case%20Studies/1) case studies and dive into our [blog post](https://blog.muttdata.ai/) to learn more about our culture and the exciting projects we’re working on! 🚀 Responsibilities 🤓 * Lead the design and implementation of scalable React Native applications (iOS + Android). * Contribute to architectural decisions, including adoption of the React Native New Architecture (JSI, Fabric, TurboModules). * Build and maintain native module integrations (Swift, Kotlin, Objective-C) * Implement robust state management and server-state strategies. * Ensure high performance and optimized rendering across devices. * Own release processes for App Store and Google Play. * Implement and maintain CI/CD pipelines and OTA updates. * Drive testing strategy (unit, integration, e2e). * Conduct structured and actionable code reviews. * Communicate technical trade-offs clearly to cross-functional stakeholders. * Lead or contribute to major refactors and architectural migrations. Required Skills 💻 * **React Native & Mobile:** * Strong experience with React Native, including the New Architecture (JSI, Fabric, TurboModules). * Native module integration using Swift, Kotlin, or Objective-C. * Experience with Expo (managed and bare workflow). * React Navigation v6+. * Advanced animations using Reanimated 3, Skia, or Lottie. * **State & Data:** * State management with Redux Toolkit, Zustand, or Jotai. * Server-state handling using React Query or SWR. * Implementation of offline-first patterns (MMKV, WatermelonDB, SQLite). * Experience integrating REST and GraphQL APIs (Apollo or URQL). * **Quality & Tooling:** * Testing experience with Jest, React Native Testing Library, and Detox. * Performance profiling using Flipper, Xcode Instruments, or Android Profiler. * CI/CD pipelines using EAS Build, Fastlane, GitHub Actions, or Bitrise. * OTA updates via EAS Update or CodePush. * App Store and Google Play release management.Error monitoring tools such as Sentry or Datadog * **Architecture:** * Experience working with modular monorepo patterns (Nx or Turborepo)Feature-based architecture, code splitting strategies, and design systems. * **Communication:** * Excellent English proficiency (written and spoken) – mandatory 🎁 Perks * **🌍 Remote-first cultur**e – work from anywhere! * **🚀** In-Company **English Lessons.** * **💪 Wellhub or sports club** stipend to stay active * **🚀 AWS, DBT, Google Cloud, Azure & Databricks** certifications fully covered * 🍕 **Food credits via Pedidos Ya** – because great work deserves great food. * **🎂 Birthday off** + an extra vacation week (Mutt Week! 🏖️) * **🤝 Referral bonuses** – help us grow the team & get rewarded! * ✈️**🏝️** [**Annual Mutters' Trip**](https://www.youtube.com/watch?v=dq1x2krHGb8&t=2s) – an unforgettable getaway with the team!