Senior Software Engineer, Platform Automation

Block is one company built from many blocks, all united by the same purpose of economic empowerment. The blocks that form our foundational teams - People, Finance, Counsel, Hardware, Information Security, Platform Infrastructure Engineering, and more - provide support and guidance at the corporate level. They work across business groups and around the globe, spanning time zones and disciplines to develop inclusive People policies, forecast finances, give legal counsel, safeguard systems, nurture new initiatives, and more. Every challenge creates possibilities, and we need different perspectives to see them all. Bring yours to Block.
The Role
The Square Quality Automation team ensures the quality, reliability, and efficiency of our mobile, web, and hardware platforms. We empower developers and test engineers by streamlining development and testing across platforms.
We're looking for a Software Engineer to build scalable test automation frameworks for mobile and web. Your work will directly accelerate product delivery by integrating with our CI/CD pipelines, helping teams ship high-quality software faster.
You'll lead the testing and quality tech stack-build systems, tools, dashboards, and frameworks-while addressing performance bottlenecks and improving. Your contributions will support a more inclusive, accessible, and reliable Square experience for our global customer base and empower engineers across the company.
You Will

• Build and maintain automated testing infrastructure across iOS, Android, web, and hardware, reducing friction and improving developer experience.
• Enhance developer efficiency by optimizing test tools, build systems, and CI pipelines for mobile and web platforms.
• Solve performance pain points across development and testing workflows-like slow build times, testing frameworks, and IDE integrations.
• Partner with cross-functional teams to deliver automated tests that reflect real-world use, ensuring high-quality, inclusive product experiences.
• Simplify and accelerate the build, test, and release cycle so engineers can ship features quickly.
• Expand our automation capabilities across all Square platforms, including Point of Sale and other key products, with scalable, reliable solutions.

You Have

• 6+ years of experience in test engineering or software engineering, focused on mobile and web products
• Strong background in building test automation frameworks for iOS, Android, and/or web platforms
• Proficient in Java, Kotlin, Python, or similar programming languages
• Hands-on experience with build systems (e.g., Gradle, Buck, Pants) and CI tools (e.g., Jenkins, CircleCI, Travis)
• Experience managing scalable build or CI infrastructure in a production environment
• Solid software engineering skills with experience mentoring and supporting others technically

Nice to have:

• Hands-on experience with tools like XCUITest, Swift, Kotlin, Trade Federation, UI Automator, Xcode, and Playwright
• Experience with developing and running tests using mobile emulators and simulators
• Experience designing and optimizing large-scale performance tests for Android and iOS applications
• Comfortable navigating and contributing within large-scale engineering orgs (100+ engineers), with a focus on collaboration and impact

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.