Mobile Developer (Flutter & React Native)

Job Summary

We are looking for an experienced Mobile Developer (Flutter & React Native) with at least 5 years of professional experience in mobile application development. The ideal candidate will be responsible for building and maintaining high-performance, real-time trading and fintech applications. You will collaborate closely with product managers, backend engineers, and UI/UX designers to deliver secure, scalable, and user-friendly mobile solutions across iOS and Android platforms.

Key Responsibilities

● Design, develop, and maintain mobile applications using Flutter (Dart) and React Native (JavaScript/TypeScript).

● Build advanced features for real-time market data, charting tools, trade execution, portfolio management, and notifications.

● Integrate with REST APIs, WebSockets, GraphQL, and third-party SDKs for real-time financial data and transactions.

● Ensure high performance, responsiveness, and smooth user experience across a wide range of devices.

● Write clean, maintainable, testable, and scalable code, with strong emphasis on security and performance optimization.

● Implement state management solutions such as Provider, Bloc, Riverpod, Redux, MobX, Zustand, or Recoil.

● Collaborate effectively with cross-functional teams in an agile environment (Scrum/Kanban) to deliver high-quality features.

● Conduct code reviews, unit testing, and continuous improvements to maintain code quality.

● Optimize app performance, minimize latency, and handle edge cases related to trading and financial transactions.

● Stay updated with emerging mobile technologies and industry trends to enhance app capabilities.

Requirements

● 5+ years of professional experience in mobile app development, with proven expertise in both Flutter and React Native.

● Strong knowledge of Dart, JavaScript (ES6+), and TypeScript.

● Deep understanding of mobile app architecture, state management, and native bridge integration.

● Hands-on experience with real-time data handling, market feeds, and charting libraries (e.g., D3, Recharts, Victory, or equivalent).

● Proficiency in integrating with REST APIs, WebSockets, and GraphQL.

● Strong understanding of iOS and Android ecosystems, app lifecycle, app store guidelines, and UI/UX best practices.

● Familiarity with CI/CD pipelines, Firebase, crash reporting, and analytics tools.

● Proficient in Git version control and collaborative workflows (branching, pull requests, code reviews).

● Experience in trading, fintech, or investment platforms is highly desirable.

● Exposure to trading concepts such as order types, market depth, positions, and margin is a strong plus.

Nice to Have

● Experience with unit, widget, and end-to-end testing in both frameworks (e.g., Flutter test, Jest, Detox).

● Knowledge of financial regulations, compliance requirements, or security protocols relevant to fintech applications.

● Familiarity with FIX protocols, OMS (Order Management Systems), or back-office trading systems.

● Contributions to open-source projects or fintech-related mobile libraries.

● Ability to mentor junior developers and contribute to technical architecture discussions.