Senior Software Engineer, Mobile (React Native)
About The Position
We're Fiserv, a global leader in Fintech and payments, and we move money and information in a way that moves the world. We connect financial institutions, corporations, merchants and consumers to one another millions of times a day - quickly, reliably, and securely. Any time you swipe your credit card, pay through a mobile app, or withdraw money from the bank, we're involved. If you want to make an impact on a global scale, come make a difference at Fiserv. You will be responsible for designing, developing, and maintaining cross-platform mobile applications for iOS and Android using React Native, TypeScript, and modern mobile development frameworks. These applications support more than 30 million active users, process billions of financial transactions annually, and facilitate the secure movement of trillions of dollars between consumers, merchants, service providers, and financial institutions. You will play a key role in modernizing our mobile platform, delivering innovative customer experiences, and helping drive the future of digital financial services at scale.
Requirements
- 5+ years of professional mobile application development experience.
- 4+ years of React Native development experience building and deploying production-grade applications.
- Strong expertise in React Native, JavaScript, and TypeScript.
- Strong understanding of React fundamentals including hooks, component architecture, navigation, and state management.
- Experience integrating RESTful APIs, asynchronous programming, and third-party SDKs.
- Knowledge of mobile application architecture patterns and scalable design principles.
- Experience with mobile security, encryption, secure storage, authentication, and data protection standards.
- Experience publishing and maintaining applications in the Apple App Store and Google Play Store.
- Experience working within Agile/Scrum development environments.
- Familiarity with CI/CD pipelines, automated testing, and release management.
- Strong Git version control and collaborative development practices.
- Bachelor's degree in Computer Science, Engineering, or a related field, or equivalent professional experience.
Nice To Haves
- Experience developing native mobile applications using Swift and/or Kotlin.
- Experience building custom React Native native modules and bridges for iOS and Android.
- Knowledge of React Native New Architecture, including TurboModules and Fabric.
- Experience with Expo, CodePush, Firebase, or similar mobile development platforms.
- Experience with automated testing frameworks such as Jest, React Native Testing Library, Detox, or Appium.
- Experience with AWS, Azure, or Google Cloud Platform.
- Experience implementing analytics, crash reporting, observability, and mobile performance monitoring solutions.
- Fintech, banking, payments, digital wallet, or PCI-regulated industry experience.
- Experience supporting large-scale consumer-facing mobile applications with millions of users.
Responsibilities
- Join a team responsible for evolving and modernizing our mobile applications using React Native and TypeScript while continuing to deliver new features and enhancements.
- Design, develop, test, and maintain high-quality cross-platform mobile applications for both iOS and Android.
- Build reusable React Native components, screens, and libraries that enable scalable and maintainable application development.
- Collaborate with Product, UX/UI, Backend Engineering, and QA teams in an Agile environment to deliver customer-focused solutions.
- Integrate RESTful APIs, third-party SDKs, payment services, and financial technology platforms.
- Optimize application performance, responsiveness, memory usage, and reliability across mobile devices.
- Utilize modern state management solutions such as Redux Toolkit, Zustand, Context API, or similar frameworks.
- Develop secure mobile applications by implementing authentication, encryption, data protection, and PCI compliance best practices.
- Support localization and multi-language experiences for global users.
- Manage CI/CD pipelines, application releases, analytics, monitoring, and push notification services.
- Participate in code reviews, technical design discussions, sprint planning, and architectural decision-making.
- Work closely with native iOS and Android teams when platform-specific functionality or custom native modules are required.
Benefits
- annual incentive opportunity which may be delivered as a mix of cash bonus and equity awards
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What This Job Offers
Job Type
Full-time
Career Level
Senior
