Mid Mobile Developer – React Native/Expo

About Qualysoft

· 25 years of experience in software engineering, established in Vienna, Austria · Active in Romania since 2007, with office in central Bucharest (Bd. Iancu de Hunedoara 54B) · Delivering End to End IT Consulting Services - From Team Augmentation and Dedicated Teams to Custom Software Development
· We deliver scalable enterprise systems, intelligent automation frameworks, and digital transformation platforms · Cross-industry experience by sustaining global players in BSFI (Banking, financial services and insurance), Telecom,Retail & E-commerce, Energy and Utilities, Automotive, Manufacturing, Logitics, High Tech · Global Presence: Switzerland, Germany, Austria, Sweden, Hungary, Slovakia, Serbia, Romania, and Indonesia · International team of 500+ software engineers · Strategic partnerships: Microsoft Cloud Certified Partner, Tricentis Solutions Partner in Test Automation and Test Management, Creatio Exclusive Partner, Doxee Implementation Partner · Powered by cutting-edge technologies: AI, Data & Analytics, Cloud, DevOps, IoT, and Test Automation. · Project beneficiaries ranging from large-scale enterprises to startups · Stable growth and revenue increase year over year, a resilient organisation in volatile IT market conditions · Quality-first mindset, culture of innovation, and long-term client partnerships · Global and local reach – trusted by key industry players in Europe and the US

Design, develop, test, and maintain cross-platform mobile applications using React Native and Expo. • Build reusable, maintainable, and responsive mobile UI 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 UI tests. • Participate in code reviews and contribute to improving mobile architecture, coding standards, and development practices. • Support application builds, releases, and deployment to 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.

• 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 UI 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. • Good communication, collaboration, and documentation skills.

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