iOS Software Engineer, Card Experience - Graphics

It all started with an idea at Block in 2013. Initially built to take the pain out of peer-to-peer payments, Cash App has gone from a simple product with a single purpose to a dynamic ecosystem, developing unique financial products, including Afterpay/Clearpay, to provide a better way to send, spend, invest, borrow and save to our 50+ million monthly active customers. We want to redefine the world's relationship with money to make it more relatable, instantly available, and universally accessible.
Today, Cash App has thousands of employees working globally across office and remote locations, with a culture geared toward innovation, collaboration and impact. We've been a distributed team since day one, and many of our roles can be done remotely from the countries where Cash App operates. No matter the location, we tailor our experience to ensure our employees are creative, productive, and happy.
The Role
Cash App's Card Experience team (part of Cash App's Banking group) builds some of the most creative and experiential features in the Cash App ecosystem. Our mission is to make the Cash Card the primary card of choice for our users by delivering delightful, seamless end-to-end experiences around the Cash Card. This team is responsible for the innovative tools that let customers personalize their Cash App Card and enjoy interactive visuals in the app. We design and implement features such as custom Cash Card designs (with stamps, emojis, and even hand-drawn artwork), themed payment interfaces (unlocking new app themes like special pink or glitter effects when you order unique Cash Cards), and even a 3D interactive model of the Cash Card right within the app. By pushing the boundaries of mobile graphics on iOS, we ensure that Cash App customers don't just manage money - they get to express themselves and have fun while doing so.
Our Card Experience team also collaborates with external partners to deliver unique product experiences that resonate with our users. We've launched exclusive card designs and in-app content in partnership with well-known artists - for example, an exclusive Sabrina Carpenter-themed Cash Card design with custom stamps, and special promotions like early Cash Card access to Lil Nas X's concert presale. These collaborations showcase how our team combines cutting-edge iOS graphics with pop culture and brand partnerships to create features that are engaging, shareable, and truly one-of-a-kind on the Cash App platform.
You Will

• Build innovative graphics features: 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. You will work with frameworks like SceneKit/RealityKit and low-level APIs like Metal to render rich 3D content and animations on iOS devices.
• End-to-end feature development: 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.
• Performance optimization: Tackle the challenges of rendering and animation in a mobile environment. 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.
• Collaboration and mentorship: Work cross-functionally with our world-class designers, animators, and product managers to refine requirements and translate ambitious visions into reality. Collaborate with Android and backend engineers to ensure a consistent experience across platforms. If you have senior-level experience, you will also mentor other iOS engineers in graphics programming best practices and push the team's technical capabilities forward.
• Quality and maintainability: Write clean, well-structured, and testable code. Utilize unit tests and UI snapshot tests to prevent regressions in complex visual features. Participate in code reviews, and help uphold high engineering standards for the team. You will also 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.

You Have

• 4+ years of iOS development experience building high-quality apps in Swift (Objective-C experience or interop is a plus). You have a track record of shipping user-facing features and can point to work that delights users with its polish and reliability.
• Graphics/AR expertise: 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.
• UI/UX and animation skills: You've built rich custom UI components or complex animations on iOS (Core Animation, UIKit Dynamics, or SwiftUI animations). You enjoy making UIs that are not only functional but fun and engaging - for example, interactive onboarding flows, creative drawing tools, or playful micro-interactions in apps.
• Performance-minded: 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. Ability to implement optimizations (down to Metal or C++ level if needed) to achieve smooth performance.
• Collaborative and creative problem-solver: 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.
• Bonus points: Experience in Augmented Reality development, game development, or visual effects on any platform. Contributions to graphics or animation libraries, or a portfolio of personal projects (apps, games, demos) showcasing your graphics skills. A passion for pushing the limits of what mobile apps can do - making something people didn't expect their phone could do!

We're working to build a more inclusive economy where our customers have equal access to opportunity, and we strive to live by these same values in building our workplace. Block is an equal opportunity employer evaluating all employees and job applicants without regard to identity or any legally protected class. We will consider qualified applicants with arrest or conviction records for employment in accordance with state and local laws and "fair chance" ordinances. We believe in being fair, and are committed to an inclusive interview experience, including providing reasonable accommodations to disabled applicants throughout the recruitment process. We encourage applicants to share any needed accommodations with their recruiter, who will treat these requests as confidentially as possible. Want to learn more about what we're doing to build a workplace that is fair and square? Check out our I+D page .
While there is no specific deadline to apply for this role, U.S. roles are typically open for an average of 55 days before being filled by a successful candidate. Please refer to the date listed at the top of this job page for when this role was first posted.
Block takes a market-based approach to pay, and pay may vary depending on your location. U.S. locations are categorized into one of four zones based on a cost of labor index for that geographic area. The successful candidate's starting pay will be determined based on job-related skills, experience, qualifications, work location, and market conditions. These ranges may be modified in the future.
To find a location's zone designation, please refer to this resource . If a location of interest is not listed, please speak with a recruiter for additional information.
Zone A:
$217,800 - $326,800 USD
Zone B:
$207,000 - $310,400 USD
Zone C:
$196,100 - $294,100 USD
Zone D:
$185,200 - $277,800 USD
Every benefit we offer is designed with one goal: empowering you to do the best work of your career while building the life you want. Remote work, medical insurance, flexible time off, retirement savings plans, and modern family planning are just some of our offering. Check out our other benefits at Block.
Block, Inc. (NYSE: XYZ) builds technology to increase access to the global economy. Each of our brands unlocks different aspects of the economy for more people. Square makes commerce and financial services accessible to sellers. Cash App is the easy way to spend, send, and store money. Afterpay is transforming the way customers manage their spending over time. TIDAL is a music platform that empowers artists to thrive as entrepreneurs. Bitkey is a simple self-custody wallet built for bitcoin. Proto is a suite of bitcoin mining products and services. Together, we're helping build a financial system that is open to everyone.