Full-Stack Software Engineer, Tools & Services

  • San Francisco, CA
  • Full-time

Company Description

Square builds common business tools in unconventional ways so more people can start, run, and grow their businesses. When Square started, it was difficult and expensive (or just plain impossible) for some businesses to take credit cards. Square made credit card payments possible for all by turning a mobile phone into a credit card reader. Since then Square has been building an entire business toolkit of both hardware and software products including Square Capital, Square Terminal, Square Payroll, and more. 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 always 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-complex 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.
  • Use 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 with our product and business teams to develop Square’s global hardware strategy.

You Have

  • 5+ years of software engineering experience.
  • Bachelor’s degree in Computer Science or equivalent practical experience.
  • Proficient in at least one of Ruby, Python, Java, 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.
  • Natural curiosity and a passion for learning.
  • Experience with front-end development.

Nice To Have:

  • Experience with either embedded or Android development

Technologies We Use

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

Additional Information

At Square, we value diversity and always treat all employees and job applicants based on merit, qualifications, competence, and talent. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. We will consider for employment qualified applicants with criminal histories in a manner consistent with the requirements of 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.