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Calling all innovators - find your future at Fiserv.

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.

Job Title

What does a successful Senior Software Engineer, Mobile (React Native) do?

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 dollarsbetween 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.

• Join a team responsible for evolving and modernizing our mobile applications using React Native and TypeScriptwhile 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.

• 5+ years of professional mobile application development experience.
• 4+ years of React Native development experiencebuilding 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.

• 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.

This role is on-site Monday through Friday. Fiserv considers in-person collaboration to be an essential part of this role, helping create a strong onboarding experience, drive innovation, and foster effective teamwork.

Sponsorship

• You must currently possess valid and unrestricted U.S. work authorization to be considered for this role. Individuals with temporary visas including, but not limited to, F-1 (OPT, CPT, STEM), H-1B, H-2, or TN, or any candidate requiring sponsorship, now or in the future, will not be considered.

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Salary Range

These pay ranges apply to employees in New Jersey and New York. Pay ranges for employees in other states may differ.

It is unlawful to discriminate against a prospective employee due to the individual's status as a veteran.

Thank you for considering employment with Fiserv. Please:

• Apply using your legal name
• Complete the step-by-step profile and attach your resume (either is acceptable, both are preferable).

Our commitment to Equal Opportunity:

Fiserv is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, gender, gender identity, sexual orientation, age, disability, protected veteran status, or any other category protected by law.

If you have a disability and require a reasonable accommodation in completing a job application or otherwise participating in the overall hiring process, please contactAskHR.US@fiserv.com. Please note our AskHR representatives do not have visibility to your application status. Current associates who require a workplace accommodation should refer to Fiserv's Disability Accommodation Policy for additional information.

Note to agencies:

Fiserv does not accept resume submissions from agencies outside of existing agreements.Please do not send resumes to Fiserv associates. Fiserv is not responsible for any fees associated with unsolicited resume submissions.

Warning about fake job posts:

Please be aware of fraudulent job postings that are not affiliated with Fiserv. Fraudulent job postings may be used by cyber criminals to target your personally identifiable information and/or to steal money or financial information. Any communications from a Fiserv representative will come from a legitimate Fiserv email address.