Q

Qualysoft

Builds business software and manages IT projects

Mid Mobile Developer - React Native, Expo

Mobile EngineeringConfirmed live in the last 24 hours
Full-timeBucharest, Romania

About the Job

Requirements

  • At least 3 years of professional software development experience.
  • Strong hands-on experience with React Native.
  • Practical experience using Expo and the Expo ecosystem.
  • Strong knowledge of JavaScript and TypeScript.
  • Good understanding of React concepts, component architecture, hooks, state management, and reusable user interface design.
  • Experience developing and consuming REST APIs.
  • Experience with mobile navigation, application state management, local storage, and asynchronous data handling.
  • Understanding of iOS and Android platform differences and mobile application lifecycle.
  • Experience with Git and collaborative development workflows.
  • Experience with debugging, profiling, testing, and troubleshooting mobile applications.
  • Understanding of mobile security concepts, authentication, authorization, and secure storage.
  • Experience using GitHub Copilot or similar AI-assisted development tools.
  • Ability to analyze requirements and independently deliver moderately complex mobile features.

Responsibilities

  • Design, develop, test, and maintain cross-platform mobile applications using React Native and Expo.
  • Build reusable, maintainable, and responsive mobile user interface components.
  • Integrate mobile applications with REST APIs and backend services.
  • Implement authentication, authorization, secure data storage, and session management.
  • Develop features using native mobile capabilities such as GPS/location, camera, notifications, background tasks, and device storage when required.
  • Handle application state, networking, caching, offline scenarios, and synchronization.
  • Optimize application performance, stability, startup time, and resource usage.
  • Troubleshoot and resolve application defects, crashes, API integration issues, and platform-specific behavior.
  • Write and maintain unit, integration, and user interface tests.
  • Participate in code reviews and contribute to improving mobile architecture, coding standards, and development practices.
  • Support application builds, releases, and deployment to the Apple App Store and Google Play.
  • Collaborate with Product, QA, Backend, and DevOps teams throughout development, testing, release, and production support.
  • Use GitHub Copilot and other approved AI-assisted development tools to improve coding, testing, refactoring, and development productivity while ensuring code quality and correctness.

About the Company

Qualysoft

Builds business software and manages IT projects

Qualysoft is an international IT consulting and software engineering company serving enterprises and public-sector organisations. Its work spans business applications, Microsoft cloud systems, custom software, data and analytics, artificial intelligence, testing and digital tax administration. Clients engage the company for individual specialists, dedicated engineering teams or managed projects in which Qualysoft takes responsibility from requirements and design through delivery and maintenance. The group operates through European locations and an Indonesian centre of excellence, supporting projects across several industries. Founded in 1999, Qualysoft is headquartered in Vienna, Austria.

Company size
501-1,000
Company stage
Not listed
Total funding
Not listed
Headquarters
Vienna, Austria
Founded
1999

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