Senior Software Engineer, Mobile (React Native & Android)

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

As a Senior Software Engineer, Mobile (React Native & Android), you will design, develop, and maintain secure, scalable mobile applications across React Native and native Android platforms. 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. You will leverage modern engineering practices, including AI-assisted software development, to improve developer productivity, code quality, and delivery speed.

• Design, develop, test, and maintain secure, high-quality mobile applications using React Native, TypeScript, Kotlin, and Android SDK.
• Build reusable React Native components, Android libraries, native modules, SDK integrations, and platform-specific Android features.
• Collaborate with Product, UX/UI, Backend Engineering, Security, and QA teams in an Agile environment.
• Integrate RESTful APIs, third-party SDKs, payment services, and financial technology platforms.
• Optimize performance, memory management, responsiveness, accessibility, reliability, and security across Android devices.
• Manage CI/CD pipelines, automated testing, monitoring, analytics, crash reporting, and mobile release processes.
• Use AI-powered development tools to accelerate development, improve code quality, and automate engineering workflows.
• Participate in code reviews, architecture discussions, sprint planning, and technical leadership while mentoring junior engineers and advancing mobile platform standards.

• 5+ years of professional mobile application development experience.
• 3+ years of hands-on experience building and deploying production-grade React Native applications.
• 3+ years of native Android development experience using Kotlin and Android SDK.
• Strong expertise in React Native, JavaScript, TypeScript, Hooks, navigation, state management, Android architecture components, Jetpack libraries, MVVM, Coroutines, and dependency injection.
• Experience integrating RESTful APIs, third-party SDKs, secure authentication, encryption, and secure data storage.
• Experience publishing and maintaining applications in the Google Play Store.
• Experience with Git, CI/CD pipelines, automated testing, release management, and AI-assisted coding tools.
• Bachelor's degree in Computer Science, Engineering, or a related field, or equivalent professional experience.

• Experience building custom React Native native modules and Android bridges, including TurboModules and Fabric.
• Experience with Kotlin Multiplatform, Firebase, CodePush, Jest, React Native Testing Library, Espresso, Appium, or Detox.
• Experience with AWS, Azure, or Google Cloud Platform and mobile observability or performance monitoring tools.
• Experience implementing AI-powered mobile features or driving Android platform modernization initiatives.
• 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.

This role is not eligible to be performed in Colorado, California, District of Columbia, Hawaii, Illinois, Massachusetts, Maryland, Minnesota, New Jersey, New York, Nevada, Rhode Island, Vermont, Virginia, Maine or Washington.

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

Please note that salary ranges provided for this role on external job boards are salary estimates made by outside parties and may not be accurate.

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 contact [email protected]. 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.