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Mid Mobile Developer – React Native/Expo

Romania·BucharestFull-timemid

EngineeringMobile Developer

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Quick Summary

Overview

About Qualysoft · 25 years of experience in software engineering, established in Vienna, Austria · Active in Romania since 2007, with office in central Bucharest (Bd.

Technical Tools

EngineeringMobile Developer

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.

What We Offer

· Premium medical package

· Lunch Tickets & Pluxee Card

· Bookster subscription

· 13th salary/yearly bonuses

· Enterprise job security with a startup mentality (diverse & engaging environment, international exposure, flat hierarchy) under the stability of a secure multinational

· A supportive culture (we value ownership, autonomy, and healthy work-life balance) with great colleagues, team events and activities

· Flexible working program and openness to remote work

· Collaborative mindset – employees shape their own benefits, tools, team events and internal practices

· Diverse opportunities in Software Development with international exposure

· Flexibility to choose projects aligned with your career path and technical goals

· Access to leading learning platforms, courses, and certifications (Pluralsight, Udemy, Microsoft, Google Cloud)

· Career growth & learning – mentorship programs, certifications, professional development opportunities, and above-market salary