Mobile Developer - Advisor I
Confirmed on the employer's own hiring board on Oct 12, 2026. First seen by Alion on Aug 11, 2026. Fiserv scores A on the Alion truth index.
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
Mobile Developer - Advisor IAbout your role
You will be responsible for developing cross-platform mobile applications for iOS and Android platforms using native technologies and modern frameworks. These applications support upwards of 30 million active users and front-end billions of financial transactions a year and they help catalyze the effective movement of trillions of dollars of funds between people, merchants and service providers, and their financial institutions.
What you’ll do
You will join a team responsible for transforming our mobile apps (both Android and IOS) from React Native and JavaScript to a more modern infrastructure, as well as maintaining and developing ongoing features in our current infrastructure.
Work with other engineers to develop and maintain high quality native mobile applications.
Develop and maintain native mobile applications using Swift and Kotlin.
Design and implement robust, scalable mobile solutions with state management and architecture patterns and collaborate with cross-functional teams (UI/UX, Backend, QA) in an Agile environment.
Implement features for financial and payment processing applications.
Build and optimize app performance, memory management, and battery efficiency and implement localization for multi-language support and encryption for sensitive data.
Manage app build, deployment, push notifications, and analytics and ensure code quality through comprehensive testing and code reviews.
Implement security best practices and PCI compliance standards and participate in code reviews, sprint planning, and architecture discussions.
Experience you’ll need to have
5+ years of professional mobile development experience.
4+ years’ experience developing Android applications with Kotlin and/or developing iOS applications with Swift, as well as React Native and JavaScript.
Strong understanding of mobile app architecture, state management, and design patterns.
Experience with RESTful APIs and asynchronous programming along with knowledge of encryption, data protection, and mobile security standards.
Demonstrated experience working in Agile/Scrum environments.
Knowledge of app deployment pipelines and CI/CD practices.
Experience with analytics tools, mobile KPIs, and push notification services and Git version control proficiency.
Bachelor’s degree or a minimum of 6 years of relevant experience required.
Experience that would be great to have
2+ years’ experience in React Native and JavaScript or cross-platform development experience.
Experience with localization frameworks and multi-language apps.
Experience with app store optimization (ASO) and cloud platforms (AWS, Azure, GCP).
Knowledge of advanced mobile testing frameworks.
Experience in fintech or financial applications and payment processing systems and encryption protocols.
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 leads to stronger productivity.
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. Pleasedo not send resumes to Fiserv associates. Fiserv is not responsible for any fees associated with unsolicited resume submissions.
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