Principal Mobile Engineer

At Early Warning, we’ve powered and protected the U.S. financial system for over thirty years with cutting-edge solutions like Zelle®, Paze℠, and so much more. As a trusted name in payments, we partner with thousands of institutions to increase access to financial services and protect transactions for hundreds of millions of consumers and small businesses.

Positions located in Scottsdale, San Francisco, Chicago, or New York follow a hybrid work model to allow for a more collaborative working environment.

Candidates responding to this posting must independently possess the eligibility to work in the United States, for any employer, at the date of hire. This position is ineligible for employment Visa sponsorship.

This position has an important role in the development, test, and deployment of Mobile Solutions for Paze.

• Define and champion the overall mobile technical strategy across iOS and Android, including frameworks, tooling, and best practices. Act as a domain expert, influencing system design across mobile and backend teams to ensure scalable and efficient solutions.
• Architect and implement secure mobile payment solutions using NFC and EMV Co Standards.
• Drive the long‑term mobile platform vision for both iOS and Android. Establish and evolve the core mobile architecture, design patterns, and engineering standards for both platforms. Ensure consistency, performance, and maintainability by setting precedents for dependency injection, module management, and reactive programming across Android (Kotlin) and iOS (Swift).
• Lead high‑level architectural and code reviews for key features and platform components across multiple mobile teams. Define and enforce a high bar for engineering quality, performance, and reliability through mentorship and process improvements.
• Use a deep understanding of mobile systems and strategic goals to resolve architectural disagreements and align teams in a single, coherent direction. Act as a neutral technical voice to facilitate decisions on shared libraries, build systems, or cross‑platform code.
• Lead the research and prototyping of complex mobile solutions, such as new SDK integrations or performance optimizations, validating their technical feasibility and alignment with the overall product roadmap.
• Act as the mobile expert in product and design discussions, providing a technical perspective on trade‑offs and risks. Influence product teams to prioritize platform health, accessibility (for both iOS and Android), and technical debt reduction alongside new feature work.
• Guide the technical planning and execution for major mobile‑specific initiatives, such as a full app redesign, a modularization effort, or a large‑scale performance overhaul. Directly influence the road‑maps of multiple mobile teams to ensure they are building toward a cohesive architectural vision.
• Establish department‑wide mobile testing strategies, including unit, integration, and UI automation tests (like XCUITest for iOS or Espresso for Android). Browser Stack and Appium experience. Drive adoption of advanced performance monitoring tools and testing practices within the CI/CD pipeline.
• Formally mentor other senior and staff‑level engineers on mobile architecture, and design. Lead critical, cross‑functional mobile projects from a technical perspective, mobilizing engineers from different teams to achieve a common goal.
• Stay up to date on the latest Android and iOS tooling and SDKs to proactively identify opportunities for process and efficiency improvements. Champion and lead the development of internal libraries and tooling that improves developer productivity across all mobile teams.
• Architect and enforce best‑in‑class mobile security practices, such as code obfuscation, certificate pinning, and secure API integration. Collaborate with security and legal teams to ensure the mobile platform adheres to all data privacy and confidentiality standards (e.g., GDPR, CCPA).
• Supporting the company’s commitment to risk management and protecting the integrity and confidentiality of systems and data.

• Education and/or experience typically obtained through a…