iOS Engineer, Customer Foundations

  • Toronto, ON, Canada
  • Full-time
  • Alternate Location: Atlanta, United States

Company Description

Since we opened our doors in 2009, the world of commerce has evolved immensely, and so has Square. After enabling anyone to take payments and never miss a sale, we saw sellers stymied by disparate, outmoded products and tools that wouldn’t work together.

To solve this problem, we expanded into software and built integrated solutions to help sellers sell online, manage inventory, book appointments, engage loyal buyers, and hire and pay staff. Across it all, we’ve embedded financial services tools at the point of sale, so merchants can access a business loan and manage their cash flow in one place. Afterpay furthers our goal to provide omnichannel tools that unlock meaningful value and growth, enabling sellers to capture the next generation shopper, increase order sizes, and compete at a larger scale.

Today, we are a partner to sellers of all sizes – large, enterprise-scale businesses with complex operations, sellers just starting, as well as merchants who began selling with Square and have grown larger over time. As our sellers grow, so do our solutions. There is a massive opportunity in front of us. We’re building a significant, meaningful, and lasting business, and we are helping sellers worldwide do the same.

Job Description

The Customer Foundations Directory Mobile team’s mission is to help sellers know and connect with their customers by (1) building a mobile platform that can be leveraged by both Square developers and external developers to enable customer-centric features and (2) building product experiences that leverage this platform to enable useful seller features that can be used across different Square apps.Our product suite includes the Customers Applet–the primary interface in the Point of Sale apps to allow sellers to search, view, and manage their customers–as well as integrations across multiple apps (e.g. Point of Sale, Restaurants, Retail, Appointments, etc.) to support customer experiences such as being able to add a customer to a cart, view relevant and context-specific customer info, or associating an appointment to a customer.By joining this team you will:

  • Design and build solutions that enable merchants to better understand and serve their customers
  • Collaborate on the technical vision and excellence for the team of engineers & multiple stakeholders
  • Identify risks and devise solutions to performance challenges
  • Build for the future by clearly communicating the cost-benefit of a given solution and advocating for the best path forward
  • Embrace opportunities to stretch yourself by learning new technologies


You have:

  • 3+ years of software development experience, with 2+ on iOS.
  • A passion for product development and seeing results
  • Experience creating readable, pragmatic code
  • Curiosity
  • Experience with simple, practical solutions
  • Eagerness to share your ideas, and openness to those of others
  • Experience with SDK or Framework development.

Technologies we use and teach:

  • Swift and Objective-C for development, using Square's modern open source library, Workflow
  • Reactive Swift, UIKit, CoreAnimation, and CoreData
  • Unit tests, snapshot tests, integration and KIF tests
  • Service APIs and Protocol Buffers for network transport
  • Metrics and monitoring with a variety of internal and external tools

Additional Information

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 a proud equal opportunity employer. We work hard to evaluate all employees and job applicants consistently, without regard to race, color, religion, gender, national origin, age, disability, pregnancy, gender expression or identity, sexual orientation, citizenship, or any other legally protected class. 

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

Additionally, we consider qualified applicants with criminal histories for employment on our team, and always assess candidates on an individualized basis.


We want you to be well and thrive. Our global benefits package includes:

  • Healthcare coverage
  • Retirement Plans
  • Employee Stock Purchase Program
  • Wellness perks
  • Paid parental leave
  • Paid time off
  • Learning and Development resources

Block, Inc. (NYSE: SQ) is a global technology company with a focus on financial services. Made up of Square, Cash App, Spiral, TIDAL, and TBD, we build tools to help more people access the economy. Square helps sellers run and grow their businesses with its integrated ecosystem of commerce solutions, business software, and banking services. With Cash App, anyone can easily send, spend, or invest their money in stocks or Bitcoin. Spiral (formerly Square Crypto) builds and funds free, open-source Bitcoin projects. Artists use TIDAL to help them succeed as entrepreneurs and connect more deeply with fans. TBD is building an open developer platform to make it easier to access Bitcoin and other blockchain technologies without having to go through an institution.

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