Lead Mobile UI Developer (iOS/Android)

About the Role

We're looking for a Lead Mobile UI Developer to drive the design, architecture, and delivery of best-in-class mobile experiences across iOS and Android. In this role, you'll partner closely with product managers, designers, and fellow engineers to build intuitive, high-performance mobile applications used by millions of customers. You'll also serve as a technical leader and mentor, setting the standard for mobile UI craftsmanship across the organization.

What You'll Do

• Lead the architecture, design, and implementation of complex, high-quality mobile UI features across iOS (Swift/SwiftUI) and Android (Kotlin/Jetpack Compose)
• Translate UX/UI designs into pixel-perfect, responsive, and accessible mobile interfaces
• Own the technical roadmap for mobile UI components, including reusable design systems and component libraries
• Provide hands-on technical leadership and mentorship to a team of mobile engineers, conducting code reviews and setting best practices
• Collaborate cross-functionally with product managers, UX designers, backend engineers, and QA to deliver seamless end-to-end mobile experiences
• Champion performance optimization, smooth animations, and responsive UI across a range of devices and OS versions
• Drive adoption of modern mobile development practices, including CI/CD pipelines, automated UI testing, and modular architecture
• Stay current with the latest iOS/Android UI frameworks, tools, and design trends, and evaluate their applicability
• Partner with accessibility and localization teams to ensure inclusive, global-ready mobile experiences
• Participate in technical planning, sprint ceremonies, and architecture reviews, providing thought leadership on mobile UI strategy

What We're Looking For

Required Qualifications:

• 8+ years of professional software development experience, with 5+ years focused on mobile UI development
• Deep expertise in either iOS (Swift, SwiftUI, UIKit) or Android (Kotlin, Jetpack Compose, XML layouts), with strong working knowledge of the other platform
• Proven track record of leading mobile UI projects from concept through production release
• Strong understanding of mobile design patterns (MVVM, MVI, Clean Architecture) and UI/UX best practices
• Experience building and maintaining component-based design systems
• Solid grasp of mobile performance tuning, memory management, and rendering optimization
• Experience with version control (Git), CI/CD tooling, and automated testing frameworks (XCTest, Espresso, etc.)
• Excellent communication skills and experience mentoring engineers or leading a small team
• Bachelor's degree in Computer Science, Engineering, or a related field, or equivalent practical experience

Preferred Qualifications:

• Experience with cross-platform frameworks (React Native, Flutter, Kotlin Multiplatform) is a plus
• Familiarity with accessibility standards (WCAG, ADA) for mobile applications
• Experience working in an agile, fast-paced product development environment
• Background in fintech, consumer apps, or other highly regulated industries
• Contributions to open-source mobile UI libraries or design systems