Senior Software Engineer (Backend), Point of Sale Server

  • Atlanta, GA
  • Employees can work remotely
  • 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

The Square Point of Sale mobile applications are the main entry point through which merchants work with Square. You'll report to the engineering lead and joining the Point of Sale Server team - that supports the development of features within those mobile applications that our merchants know and love.

To learn more about Point of Sale:

You Will:

  • Work with your fellow engineers to ensure that Square is delivering remarkable experiences to end-users;
  • Develop engineering designs and implementations of impactul end-user product features;
  • Maintain existing services and help them scale and improve to meet the needs of merchants;
  • Help the team refine existing and establish new engineering patterns and processes to guarantee a thoughtful development cycle.


You Have:

  • Excellent software engineering knowledge and a product mindset;
  • 6+ years professional experience working on web application backend systems in Java, Go, or Ruby;
  • Experience modeling data and working with relational databases;
  • Experience with or interest in learning about AWS or other cloud computing platforms;
  • Experience with modern HTML, CSS, and JavaScript UI Frameworks (React, Ember, Vue).
  • Experience mentoring other engineers on the team.
  • Desire to provide a great product;
  • A sense of customer empathy and an interest in the product direction.

Technologies we use:

  • Java / Guice / MySQL / Protocol Buffers / gRPC / JUnit
  • AWS - Terraform, S3, SNS, SQS, IAM
  • CDN - Fastly, CloudFront
  • ES6 JavaScript / TypeScript / EmberJS / SCSS / QUnit / Cypress

Additional Information

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. Square 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, 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, and always assess candidates on an individualized basis.


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

Square, Inc. (NYSE: SQ) builds tools to empower businesses and individuals to participate in the economy. Sellers use Square to reach buyers online and in person, manage their business, and access financing. Individuals use Cash App to spend, send, store, and invest money. And TIDAL is a global music and entertainment platform that expands Square's purpose of economic empowerment to artists. Square, Inc. has offices in the United States, Canada, Japan, Australia, Ireland, Spain, Norway, and the UK.

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