Principal Mobile Engineer

Job Title: Principal Mobile Engineer

Location: Los Angeles, CA (Start Remote later this year hybrid)

Job Type: Contract then Hire

Classification: Structured Hybrid (Minimum of three (3) days per week working in the office, with flexibility to work remotely on the remaining days). On-site expectations may evolve over time to support business needs.

Job Summary

We are looking for talented professionals to join us in bringing smart money management and payment solutions to everyone's fingertips.

We are seeking a Principal Mobile Engineer with deep expertise in iOS development and a strong working knowledge of Android, who will drive the design, development, and evolution of AI-enabled mobile applications. This role combines hands-on technical leadership, mobile architecture ownership, and mentorship, while partnering closely with Product, Design, Backend, Data, and AI teams.

The ideal candidate is passionate about building secure, scalable, and intuitive mobile experiences, and is excited to apply AI/ML capabilities—such as personalization, intelligent automation, and predictive insights—directly within mobile products.

Key Responsibilities

• Lead the architecture and development of native iOS applications, ensuring high performance, reliability, and scalability across devices.
• Provide technical direction and code-level leadership for Android development to ensure cross-platform consistency and quality.
• Define and enforce mobile engineering standards, best practices, and reusable components across the mobile ecosystem.
• Implement on-device and cloud-based ML capabilities using modern mobile and backend frameworks.
• Architect and develop native iOS applications using Swift and SwiftUI, ensuring performance, scalability, and security.
• Collaborate with cross-functional teams including Product, Design, Backend Engineering, and QA to deliver seamless mobile experiences.
• Lead technical initiatives to improve mobile CI/CD pipelines, crash analytics, and performance monitoring.
• Implement observability and monitoring solutions using tools like Firebase and Xcode Instruments.
• Mentor junior mobile engineers and promote best practices across iOS and Android development.
• Partner with business stakeholders to translate product requirements into scalable mobile solutions.
• Operate in an AI-driven SDLC environment, leveraging tools like GitHub Copilot and Xcode AI integrations.
• Implement and manage Datadog dashboards, Google and Adobe analytics, monitors, and alerts for mobile applications.

Required Qualifications

• 10 years of mobile development experience, with 3 years in a technical leadership role focused on iOS.
• Expert-level proficiency in Swift, SwiftUI, Combine, and UIKit.
• Working knowledge of Kotlin and Android architecture components.
• Experience with Azure DevOps, Git, Fastlane, and Firebase.
• Familiarity with App Store and Google Play deployment processes, including TestFlight and internal testing tracks.
• Experience operating in cloud-connected mobile architecture (Azure or AWS).
• Strong understanding of RESTful APIs, OAuth2, and mobile security best practices.
• Strong understanding of accessibility standards such as WCAG and ARIA, with the ability to implement inclusive design practices to ensure mobile applications are usable by people of all abilities.
• Experience implementing and managing Datadog dashboards, Google and Adobe analytics, monitors, and alerts for mobile applications.
• Experience with automated testing, unit testing, TDD, and CI/CD pipelines.
• Development Tools: Xcode, Android Studio, GitHub, Jira, Confluence, Figma.
• Familiarity with mobile analytics, crash reporting, and user behavior tracking.
• Ability to work in a fast-paced, agile environment with AI-enhanced workflows.
• Strong Project Organization skills (including budgeting and scope).
• Strong Communication skills.