Senior Software Engineer (React Native)
ENGINEERING
About Fluxion Tech
Fluxion Tech is a fast-growing technology company operating across Southeast Asia, with Thailand serving as a key regional hub for our operations.
We specialize in building innovative, scalable solutions that support cross-border business, digital transformation, and client success across the ASEAN market.

At Fluxion Tech, we foster a dynamic and multicultural environment where adaptability, initiative, and collaboration are highly valued. We empower our people to take ownership, drive impact, and grow together with the organization.
About the Role
We are looking for a React Native Software Engineer to join our dynamic development team and build high-performance, scalable, and user-friendly mobile applications. You will play a key role in transforming product concepts and UX designs into seamless cross-platform mobile experiences. As a Software Engineer, you’ll work closely with backend developers, product managers, and UI/UX designers to deliver reliable, high-quality mobile applications. You’ll also contribute to defining mobile best practices, improving performance, and maintaining code quality through testing and continuous integration.
Qualifications & Requirements
  • 5+ years of experience in mobile application development, including 3+ years using React Native
  • Strong understanding of JavaScript (ES6+) and TypeScript
  • Proficient in developing and maintaining cross-platform mobile apps for iOS and Android
  • Hands-on experience with state management libraries (Redux, MobX, Zustand, or Context API)
  • Solid understanding of mobile app architecture, component-based design, and reusable UI development
  • Experience integrating RESTful APIs and handling asynchronous data (Axios, Fetch, etc.)
  • Familiar with native modules, push notifications, and mobile storage (AsyncStorage, SQLite, etc.)
  • Experience with unit and integration testing using tools like Jest, React Native Testing Library, or Detox
  • Understanding of mobile CI/CD pipelines (Fastlane, Bitrise, GitHub Actions, or App Center)
  • Knowledge of app publishing to the App Store and Google Play
  • Familiar with Agile/Scrum methodologies and cross-functional collaboration
  • Exposure to performance optimization, mobile security, and analytics integration (Firebase, Segment) is a plus
Key Responsibilities
  • Design, develop, and maintain cross-platform mobile apps using React Native
  • Collaborate with backend teams to integrate APIs and ensure smooth data flow
  • Translate Figma/mockups into pixel-perfect, responsive mobile UI
  • Implement mobile-specific functionalities (camera, geolocation, push notifications, etc.)
  • Ensure app performance, stability, and accessibility compliance (WCAG)
  • Write clean, maintainable code following industry best practices and company standards
  • Build and maintain unit and integration tests to ensure reliability
  • Participate in code reviews, sprint ceremonies, and retrospectives
  • Debug, profile, and optimize mobile app performance across devices
  • Contribute to the continuous improvement of the mobile architecture and developer experience
What We Offer
Compensation & Benefits
  • Competitive salary aligned with market standards
  • Performance-based annual bonus and salary review
  • Annual leave and public holidays in accordance with the labor law
  • Company-provided MacBook for all (on-site) technology positions
Growth & Development
  • Clear career progression and advancement opportunities
  • Training support and professional development programs
  • Opportunity to work on regional (ASEAN) projects and initiatives
Work Environment
  • International and multicultural workplace
  • Collaborative, supportive, and flat organizational structure
  • Opportunity to make a real impact and grow with the company
Apply Now
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