> Markdown version of [/jobs/ext/3969932-software-engineer-iii-mobile-react-native](https://www.wearedevelopers.com/jobs/ext/3969932-software-engineer-iii-mobile-react-native). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Software Engineer III (Mobile - React Native)

- **Company:** Inc. (csi)
- **Location:** Austin, TX, United States
- **Experience:** Experienced
- **Contract:** Permanent contract
- **Skills:** Clean Code Principles, Application Programming Interfaces (APIs), Agile Methodology, Android Software Development, Apple IOS, Mobile Application Development, Computer Programming, Continuous Integration, Online Banking, Mobile Application Software, Responsive Web Design, Software Engineering, Systems Integration, TypeScript, Technical Debt, Backend, React Native, Multiplatform
- **Published:** October 27, 2026
- **Apply:** https://www.careerbuilder.com/job-details/software-engineer-iii-mobile-react-native-austin-tx--d7eb1a5b-1b67-472c-90d7-d42092101164

## About the Role

Software Engineering, React Native, Usability Engineering, iOS, Android, Banking Services, Problem Solving Skills, Multiplatform/Cross-Platform, Leadership, System Integration (SI), * Requires 5+ years of professional software engineering experience, with strong mobile development experience delivering scalable, reliable applications.

 * Must have 4-5 years of hands-on React Native and TypeScript experience, including API, backend service, and third-party system integrations.
 * Experience with financial systems, banking platforms, core integrations, or regulated technology environments preferred.
 * College degree in software engineering, or related field or equivalent industry experience required.
 * Strong engineering fundamentals, including clean code, maintainable architecture, performance, testing, reliability, security awareness, and documentation.
 * Clear communicator who can collaborate across engineering, product, design, QA, security, architecture, and business teams.
 * Ability to manage competing priorities in an Agile environment while balancing delivery, support, technical debt, and quality., Visa Sponsorship: We are unable to offer visa sponsorship for this position. Applicants must be authorized to work in the United States without the need for sponsorship now or in the future.

## Description

Software Engineer III designs, codes, tests, and debugs scalable mobile applications using React Native and TypeScript; maintains and documents program changes with a focus on performance, usability, and reliability across iOS and Android. Works in complex areas of major CSI applications with emphasis on mobile architecture and third-party integrations, including banking core systems. Contributes to modernization of existing technologies and integration layers. Requires strong problem-solving, creativity, and high engineering standards to deliver intuitive, high-performing mobile experiences.Responsibilities:

 * Project Leadership: Own development and rollout of large mobile projects and cross-platform solutions integrated with backend systems.
 * Standards and Practices: Enforce best practices in React Native, TypeScript, mobile performance, and responsive design.
 * Project Management: Deliver high-quality mobile features efficiently and on time.
 * Technical Specifications: Define mobile architecture, APIs, and integration risks (performance, compatibility, dependencies).
 * Coaching and Mentorship: Promote Agile, CI/CD, and mobile best practices; mentor peers.
 * Expertise and Innovation: Apply modern mobile technologies and evolving TypeScript ecosystem.
 * Programming Knowledge: Strong in React Native and TypeScript; ability to collaborate across backend and integrations.
 * Thought Leadership: Drive mobile UX, architecture, and integration strategy in online banking domain.
 * Mentorship: Guide engineers in scalable mobile development.
 * Additional Duties: Support team effectiveness and cross-functional initiatives.