Embedded Software Test Engineer, Bitcoin Wallet

Square, San Francisco CA, US

Square works for every business.

You will:

  • Build and deploy tools to accelerate development of the hardware and firmware for a brand new product category

  • Work with engineering and product stakeholders to determine what to automate, when, and how

  • Write and maintain test infrastructure that makes use of hardware peripherals to simulate a variety of conditions the device will encounter when in customers' hands

  • Develop and automate release processes for critical software components, including both internal components as well as in-field updates 

  • Contribute to the design of test fixtures used on the manufacturing line

  • Support debugging and triage of internal and external customer-facing issues 

  • Enable anyone on the internet to build the firmware for our wallet product

  • Leverage and extend existing internal infrastructure where it suits our testing and analytics needs - and evaluate and deploy third party applications where appropriate

You have: 

  • 4+ years of experience writing, deploying, and maintaining software and/or test systems

  • Experience building systems for automated validation of software projects with many contributors

  • Experience with at least some of: 

    • python or ruby

    • build tooling (everything from make to bazel / meson / embedded toolchains, ...)

    • CI pipeline products (jenkins / github actions / circle / gitlab, ...) 

  • Interest in applying your software development skills to all levels of our stack, from deploying cloud services to instrumenting low-level custom hardware

Even better:

  • Experience with test systems that incorporate hardware peripherals and/or are used for validation in hardware manufacturing

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, veteran status, 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, assessing candidates in a manner consistent with the requirements of the San Francisco Fair Chance Ordinance.


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.

About Square

We believe the economy is better when everyone has access. When everyone has room to grow. No one should be left out because the cost is too great or the technology too complex. So we’re building easy tools to empower and enrich people. Tools that shorten the distance between having an idea and making a living from it—because we believe in fair and square. We started with a little white card reader but haven’t stopped there. Our new reader helps our sellers accept chip cards and NFC payments, our Cash app lets people send money instantly, and we’re building easy tools for customers, too. We’re empowering the electrician to send invoices, setting up the food truck with a delivery option, helping the clothing boutique pay its employees, and giving the coffee chain capital for a second, third, and fourth location. We’re here to help sellers of all sizes start, run, and grow their business—and helping them grow their business is good business for everyone.


Want to learn more about Square? Visit Square's website.