React Native
React Native is a popular tool for building mobile apps that work on both iPhones and Android phones. Instead of creating two separate apps for each type of phone, developers can write the code once and have it work on both platforms. This saves time and money for companies. It was created by Facebook (now Meta) and is similar to other tools like Flutter or Xamarin. Think of it as a universal translator that helps developers create mobile apps that speak both "iPhone language" and "Android language" at the same time.
Examples in Resumes
Developed cross-platform mobile application using React Native that reached 100,000+ downloads
Led team of 3 developers in creating company's flagship React Native mobile app
Improved app performance and user experience by optimizing React Native components
Typical job title: "React Native Developers"
Also try searching for:
Where to Find React Native Developers
Online Communities
Job Boards
Events & Conferences
Professional Networks
Example Interview Questions
Senior Level Questions
Q: How would you architect a large-scale React Native application?
Expected Answer: Should explain how they would organize the app for multiple teams, handle state management, implement code sharing, and ensure consistent performance across different devices and platforms.
Q: How do you handle app performance optimization in React Native?
Expected Answer: Should discuss techniques for improving app speed, reducing memory usage, handling large lists of data, and making sure the app runs smoothly on both iOS and Android.
Mid Level Questions
Q: How do you handle different screen sizes and orientations in React Native?
Expected Answer: Should explain how they make apps look good on different phone sizes and both portrait and landscape modes, using flexible layouts and responsive design.
Q: Explain how you would integrate native features like camera or GPS in React Native
Expected Answer: Should describe how to use device features like camera, location services, or notifications in their apps, and handle permissions properly.
Junior Level Questions
Q: What is the difference between React Native and regular React?
Expected Answer: Should explain that React is for websites while React Native is for mobile apps, and understand the basic differences in how they work.
Q: How do you create a basic screen in React Native?
Expected Answer: Should be able to explain how to create a simple mobile app screen with basic elements like text, images, and buttons.
Experience Level Indicators
Junior (0-2 years)
- Basic mobile app layouts and styling
- Simple form handling and validation
- Understanding of basic mobile app components
- Working with basic phone features
Mid (2-4 years)
- Complex app navigation
- Working with mobile device features
- App store deployment process
- Performance optimization techniques
Senior (4+ years)
- Large-scale app architecture
- Team leadership and mentoring
- Complex app optimization
- Cross-platform development expertise
Red Flags to Watch For
- No experience with mobile app development concepts
- No understanding of how apps work differently on iOS and Android
- Lack of knowledge about mobile app security
- No experience with app testing or debugging
