Senior Software Engineer (iOS), Connected Devices

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
You will design and develop new functionality for new and existing 1st and 3rd party hardware connected to Square's iOS Points of Sale. The Connected Devices team is a mobile development team focused on connecting Square's mobile Points of Sale to hardware devices (card readers, Square Stand, weighing scales, barcode scanners, and more). You will collaborate with other engineers and our product and design teams to ensure that millions of merchants have a remarkable and reliable experience using a variety of 1st and 3rd party peripherals.
You Will

• Design and implement features as part of Square's new hardware initiatives in support of first-and-third party hardware experiences for both merchants and developers.
• Collaborate closely with product managers, designers, and other engineers.
• Participate in the full lifecycle of product development, from early definition through release and beyond.

You Have

• 8+ years of iOS software development experience, developing scalable production software and an excellent command of engineering fundamentals
• Ability to lead and mentor a group of software engineers to deliver solutions while fostering growth
• Motivation to build highly reliable, well tested features that work regardless of network quality or availability. Strong communication skills and a strong desire to deliver a great product.A deep sense of customer empathy and an interest in influencing the team's direction.
• [Preferred] Experience with connecting hardware to iOS devices
• [Preferred] Experience with bluetooth devices or other peripheral devices.

Technologies We Use and Teach

• Swift and Objective-C
• Square's open source iOS frameworks: Workflow (state management), Blueprint (declarative UI)
• UIKit, Core Bluetooth, Core Data, and External Accessory framework
• Unit tests, snapshot tests, integration tests
• Service APIs and Protocol Buffers
• Bazel for our build environments

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
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. Check out benefits at Block.
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.