Principal React Native Developer – Authentication UI

General information

# 21764

Remote? No

Ally Financial only succeeds when its people do - and that’s more than some cliché people put on job postings. We live this stuff! We see our people as, well, people - with interests, families, friends, dreams, and causes that are all important to them. Our focus is on the health and safety of our teammates as well as work-life balance and diversity and inclusion.

From generous benefits to a variety of employee resource groups, we strive to build paths that encourage employees to stretch themselves professionally. We want to help you grow, develop, and learn new things. You’re constantly evolving, so shouldn’t your opportunities be, too?

At Ally, you get a startup feel, but experience the benefits of a company that has worked out the kinks and is fulfilling its purpose. We are always evolving and see that as a good thing. From owning our work to seeing its impact in the real world, our team is relentless in finding new ways technology can help make experiences better and help people.

We are problem solvers, we value diverse thinking, we support one another, and we challenge ourselves to think bigger in the journey to deliver customer-obsessed tech solutions. To read more about what our tech team does, be sure to visit our tech blog h

We are seeking a Principal React Native Developer to contribute to the authentication interfaces on our mobile and web platforms. In this role, you will be expected to provide architectural and user experience feedback, implement features as designed, and develop shared packages and features that would be consumed by other teams with a focus on security and stability.

You will be a hands-on contributor to the mobile and web authentication architecture, contributing to features that span across multiple platforms and lines of business.

At this time, Ally will not sponsor a new applicant for employment authorization for this position.

• Implement and maintain authentication features by using or developing shared components, integrating SDKs, and leveraging operating system provided tooling (Biometrics, Passcode)
• Collaborate with senior engineers to inform direction, architecture decisions, and adoption of modern React Native capabilities (Turbo Modules, Fabric)
• Ensure consistency, performance, and maintainability across the app and shared modules

• Support other product teams in leveraging authentication features to enable API access and appropriate access levels for sensitive features and maintaining authenticated state throughout the user experience
• Create and maintain documentation for the implementation and integration of reusable authentication patterns
• Write high-quality, production-ready code that balances maintainability, performance, and scalability

Minimum Qualifications:

• 7+ years of relevant experience.
• Bachelor’s Degree in relevant field(s) of study or equivalent.

Preferred Qualifications:

• 4+ years working with React or React Native in production environments.
• Strong experience with JavaScript/Type Script and modern React patterns.
• Experience using extensible component libraries to build out features to designed specifications.
• Comfortable contributing to architectural discussions.
• Experience with modularization strategies in large applications.
• Familiarity with automated testing frameworks (Cypress, Maestro).
• Performance optimization and observability in mobile and web applications.
• Experience supporting multiple product teams via shared mobile infrastructure and internal NPM packages.
• Strong collaborator and contributor in technical documentation.
• Systems thinker with attention to maintainability and scalability.
• Excellent problem-solving and debugging skills.
• Clear communication across technical and non-technical stakeholders.

• Experience with native iOS (Swift/Objective-C) and/or Android (Kotlin/Java) development
• Familiarity with React Native New Architecture (Turbo Modules, Fabric)
• Familiarity with third party Access Management solutions (Okta, Transmit Security)
• Familiarity with various authentication…