Senior iOS Engineer, Trust Mobile

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.
So we expanded into software and started building integrated, omnichannel solutions - to help sellers sell online, manage inventory, offer buy now, pay later functionality, 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.
The Role
The Trust Mobile team is responsible for the experiences within our mobile apps that help establish our Sellers identity with the product we provide and support them as issues arise. This spans features across authentication (sign-in and multi-factor), onboarding (Know Your Customer), account security, support, and help live messaging across the Square ecosystem of products.
As an iOS engineer on the team you will have a key role in designing, building, and improving our existing experiences in these areas across our iOS mobile applications. This includes our flagship products Point of Sale , Square Register , Square Terminal , Square for Restaurants , Square for Retail , Square Appointments , Square Invoices , Square Payroll , Square Team .
You Will

• Lead the architecture, design, and implementation of critical features within Trust Mobile.
• Represent the team in architectural discussions and stakeholder conversations, serving as a bridge between our team and the broader organization.
• Help shape the future of our codebase by building flexible, extendable, and reusable components.
• Foster a culture of engineering excellence and mentor engineers of all experience levels.
• Hold yourself and your teammates to the highest standard of engineering excellence, with unwavering attention to product reliability.
• Work with product managers, designers, and data scientists to shape the future of the Trust Mobile product areas at Square.
• Help contribute to a culture of positivity, psychological safety, and inclusivity within the team.

You Have

• 8+ years of iOS software engineering experience, developing scalable production software and an excellent command of engineering fundamentals.
• Proficiency in Swift and/or Objective-C.
• Proficiency in native iOS development using standard tools and frameworks.
• Experience leading and mentoring others to deliver solutions while fostering growth and an inclusive environment.
• Experience working in complex technical projects, e.g. cross-team programs.
• A passion for building mobile products at all levels - from the low-level architectural decisions to the individual pixels.
• A desire to build products that our merchants will depend on every day to run their business.

Technologies We Use and Teach

• Swift, Objective-C
• Workflow , Square's open source unidirectional data flow library
• Unit, Snapshot, and 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 also consider qualified applicants with criminal histories for employment on our team, and always assess candidates on an individualized basis.
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 .
Block will consider qualified applicants with arrest or conviction records for employment in accordance with state and local laws and "fair chance" ordinances.
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:
$198,000 - $297,000 USD
Zone B:
$188,100 - $282,100 USD
Zone C:
$178,200 - $267,400 USD
Zone D:
$168,300 - $252,500 USD
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.