Cash App's Card Experience team aims to make the Cash Card the primary card of choice for users by delivering delightful, seamless end-to-end experiences. This involves creating innovative tools for card personalization and interactive visuals within the app, pushing the boundaries of mobile graphics on iOS to allow users to express themselves and have fun while managing their money.
Requirements
- 4+ years of iOS development experience building high-quality apps in Swift (Objective-C experience or interop is a plus).
- Hands-on experience with 3D or AR frameworks on iOS. This could include SceneKit, RealityKit, ARKit, SpriteKit, or even game engines and custom OpenGL/Metal rendering.
- You understand the fundamentals of 3D math, rendering pipelines, and maybe have dabbled in writing shaders or using engines like Filament for physically-based rendering.
- You've built rich custom UI components or complex animations on iOS (Core Animation, UIKit Dynamics, or SwiftUI animations).
- Knowledge of optimizing app performance, especially graphics rendering and memory usage on mobile.
- Comfortable using instruments and profiling tools to diagnose rendering hitches, memory leaks, or CPU bottlenecks.
- Experience in Augmented Reality development, game development, or visual effects on any platform.
Responsibilities
- Design, develop, and maintain high-performance iOS components that power our interactive card experiences – from the real-time 3D Cash Card model to dynamic UI elements for card customization and payment pad themes.
- Work with frameworks like SceneKit/RealityKit and low-level APIs like Metal to render rich 3D content and animations on iOS devices.
- Own features from concept to release. This includes working closely with product and design on creative new ideas (e.g. animated card customizers, AR visualizations), rapid prototyping of immersive UI/UX interactions, and building production-quality code for these features.
- Profile and optimize rendering code (CPU/GPU usage, memory) to maintain smooth 60fps+ experiences, even when handling complex scenes or effects.
- Implement custom shaders or rendering techniques when necessary to achieve visual excellence without sacrificing app performance.
- Work cross-functionally with our world-class designers, animators, and product managers to refine requirements and translate ambitious visions into reality.
- Write clean, well-structured, and testable code. Utilize unit tests and UI snapshot tests to prevent regressions in complex visual features.
Other
- Collaborate with Android and backend engineers to ensure a consistent experience across platforms.
- Mentor other iOS engineers in graphics programming best practices and push the team's technical capabilities forward.
- Participate in code reviews, and help uphold high engineering standards for the team.
- Contribute to the technical direction of graphics/AR technologies in the app, evaluating new frameworks or tools (e.g. adopting RealityKit or Filament for rendering) and ensuring our graphics stack remains modern and robust.
- Able to work closely with designers, product managers, and other engineers. Open to brainstorming creative solutions and experimenting with new technologies or approaches to bring a vision to life.
