Mobile App Engineer

You will design and implement high-performance iOS features for a full-featured mobile trading app. You will build gesture-driven trading interfaces and interactive charts, integrate native wallet support and biometric authentication, manage transaction signing and on-device key security, and integrate REST APIs and WebSocket streams while maintaining client-side cached state. You will also configure CI/CD pipelines, ensure quality through automated testing, and optimize the app to remain responsive under volatile market conditions.

Responsibilities

• Design responsive iOS features that handle real-time market data
• Build gesture-driven trading interfaces with high information density
• Develop high-performance interactive charts and data visualizations
• Integrate native mobile wallet support and biometric authentication
• Implement secure on-device transaction signing and key management
• Integrate REST APIs and WebSocket streams and manage cached client state
• Configure and maintain CI/CD pipelines, automated builds, previews, and testing

Requirements

• 3+ years shipping iOS applications in Swift
• Experience with App Store release processes and provisioning
• Deep understanding of iOS performance characteristics, memory management, and background processing
• Experience building real-time systems and managing WebSocket connections and reconnection strategies
• Strong UI/UX design sensibility, wireframing, and prototyping experience
• Ability to make architectural decisions and lead feature development
• Comfortable collaborating in high-bandwidth in-person engineering environments
• Authorized to work in the United States

Benefits

• Comprehensive medical, dental, and vision insurance with HSA options
• Generous paid vacation and holidays
• Retirement plan with employer match