Mobile Developer (React Native)

Mobile Developer (React Native)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.About your role:As a Senior Software Engineer, Mobile (React Native), you will design, develop, and maintain secure cross-platform applications for iOS and Android using React Native, TypeScript, and modern mobile frameworks. Supporting more than 30 million active users and billions of annual financial transactions, you will help modernize Fiserv's mobile platform and deliver innovative digital financial experiences at scale.What you'll do:Design, develop, test, and maintain high-quality cross-platform mobile applications for iOS and Android using React Native and TypeScript.Build reusable components, screens, libraries, and platform-specific native modules that support scalable application development.Collaborate with Product, UX/UI, Backend Engineering, native mobile, and QA teams in an Agile environment.Integrate RESTful APIs, third-party SDKs, payment services, and financial technology platforms.Optimize application performance, responsiveness, memory usage, reliability, localization, and multi-language experiences.Implement secure authentication, encryption, data protection, and PCI compliance best practices.Manage state, CI/CD pipelines, releases, analytics, monitoring, and push notification services using modern tools and frameworks.Participate in code reviews, technical design discussions, sprint planning, and architectural decision-making.Experience you'll need to have:5+ years of professional mobile application development experience, including 4+ years building and deploying production-grade React Native applications.Strong expertise in React Native, JavaScript, TypeScript, 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 with Agile/Scrum, Git, CI/CD pipelines, automated testing, and release management.Bachelor's degree in Computer Science, Engineering, or a related field, or equivalent professional experience.Experience that would be great to have:Experience developing native mobile applications with Swift and/or Kotlin and building custom React Native modules and bridges.Knowledge of React Native New Architecture, including TurboModules and Fabric.Experience with Expo, CodePush, Firebase, Jest, React Native Testing Library, Detox, or Appium.Experience with cloud platforms, analytics, crash reporting, observability, and mobile performance monitoring.Fintech, banking, payments, digital wallet, PCI-regulated, or large-scale consumer mobile application experience.How you'll work:This role is on-site Monday through Friday. Fiserv considers in-person collaboration to be an essential part of this role as in-person office experiences help you with your overall onboarding experience and lead to stronger productivity.Travel:Approximately 10% travel off-site or to other office locations is expected.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.Salary Range$109,000.00 - $182,400.00These 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.For incentive eligible associates, the successful candidate is eligible for an annual incentive opportunity which may be delivered as a mix of cash bonus and equity awards in the Company's sole discretion.Thank you for considering employment with Fiserv. Please:Apply using your legal nameComplete 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 contact 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.