Senior iOS Engineer - Referrals, Acquisition & Marketing Platform

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
The Referrals, Acquisition & Marketing Platform mobile team sits within Cash App's Core Experiences abstraction and is responsible for building key user-facing surfaces that drive growth. We're a small, collaborative group of iOS and Android engineers working closely with Product, Design, and Marketing to create seamless, high-impact experiences. As a mobile engineer on this team, you'll play a critical role in launching new referral features, promotional tools, and campaign infrastructure-helping more people discover and engage with Cash App.
You Will

• Craft durable, well-tested code with an unwavering commitment to product quality
• Collaborate closely with design and product teams to refine ideas into functional experiences, while balancing customer impact with technical feasibility.
• Bring a high degree of autonomy, ownership, and initiative.
• Deliver features to tens of millions of customers, while maintaining customer trust as a top priority
• Work across both startup-style, zero-to-one product development and large-scale, established engineering systems
• Learn to craft gorgeous, pixel-perfect UI and animations
• Deliver features to tens of millions of customers, shipping at a fast and exciting cadence
• Build new functionality into an app designed to provide real value to its customers
• Partner with Android and backend developers on delivering remarkable solutions

You Have

• 7+ years of iOS experience
• Experience in early-stage product development, ideally having worked in both a startup and a large company to bridge both worlds.
• Experience creating readable, well-crafted, and maintainable code
• Experience in animation and prototyping
• Experience voicing customer feedback into product solutions (engineering makes substantive contributions to product definition)
• A commitment to continuous improvement (yourself, your teammates, your software)

Technologies We Use and Teach

• Swift, Objective-C, Kotlin (believe it! - we collaborate directly with our friends on Android)
• SwiftUI, UIKit, CoreAnimation, SQLite, Accessibility
• Unit tests, snapshot tests, integration tests
• Protocol buffers

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.