Full- Stack Software Engineer, Tools and Services

  • San Francisco, CA
  • Full-time

Company Description

When we launched the little white reader, we invented mobile, ubiquitous payments and enabled anyone to start, run, and grow a business. Ten years and billions of transactions later we’re reimagining commerce for businesses of all types and sizes—we’re enabling the independent electrician to send invoices, helping the beauty salon pay its employees, and giving the burgeoning coffee chain capital for a second, third, and fourth location. We’re working to find new and better ways to help businesses succeed on their own terms—and we’re looking for people like you to help shape tomorrow at Square.

Job Description

Square’s hardware devices form the tangible connection between Square and the millions of small businesses who rely on our services.  We are constantly improving the software on these devices and monitoring their performance. The Device Software Tools & Services team develops and runs production services that securely deploy software updates to millions of embedded devices across four continents, and collect diagnostic and troubleshooting data from devices in the field.  

As our hardware portfolio expands and Square reaches larger, more-sophisticated businesses, you will work on the team that serves larger and more complicated assets - to more devices - more frequently, while constantly improving the customer experience associated with this process. We need full-stack software services that can scale with this task.


You will:

  • Design, implement, and run software services to validate, deploy, and monitor software updates for Square embedded devices.
  • Scale our deployment infrastructure and systems to support future hardware offerings and growth.
  • Utilize metrics reporting to gain insight into the health of our build, test and release infrastructure.
  • Empower the team to be brave and take principled risks, without ever showing a negative impact to customers.
  • Work cross-functionally with our product and business teams to develop Square’s global hardware strategy.

You Have

  • 3+ years of software engineering experience.
  • Bachelor’s degree in Computer Science or equivalent practical experience.
  • Proficient in at least one of Ruby, Python, Java, and/or Go.
  • Experience developing highly available and scalable production services.
  • A strong desire to abstract away complexity, replace repetition with automation, and design user-centered solutions.
  • Innate curiosity and a passion for learning.
  • Experience with front-end development.

Nice To Have (but not required)

  • Experience with either embedded or Android development (or a desire to learn either)

Technologies We Use

  • Ruby, Python, Javascript
  • Rails, Protocol Buffers, gRPC, jQuery
  • Snowflake, Looker, Redis, MySQL

Additional Information

At Square, our purpose is to empower – within and outside of our walls. In order to build the best tools for the businesses and customers we support all over the world, we have to start at home with a workforce as diverse and empowered as our sellers. To this end, we take great care to evaluate all employees and job applicants equally, based on merit, competence, and qualifications. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, disability status, or any other characteristic protected by law. We encourage candidates from all backgrounds to apply and always consider qualified applicants with arrest and conviction records, in accordance with the San Francisco Fair Chance Ordinance. Applicants in need of special assistance or accommodation during the interview process or in accessing our website may contact us by sending an email to assistance(at)squareup.com. We will treat your request as confidentially as possible. In your email, please include your name and preferred method of contact, and we will respond as soon as possible. Perks At Square, we want you to be well and thrive. Our global benefits package includes: Healthcare coverage, Retirement Plans, Employee Stock Purchase Program, Meal reimbursements, Wellness perks, Paid parental leave, Flexible time off, Learning and Development resources