Software Engineer, Developer Experience

  • Seattle, WA
  • Full-time

Company Description

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. We started with a little white credit card reader but haven’t stopped there. We’re empowering the independent electrician to send invoices, setting up the favorite food truck with a delivery option, helping the ice cream shop pay its employees, and giving the burgeoning 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.

Job Description

The Developer Experience team creates tools that external developers use to build apps on Square's platform. We are a small, focused, and rapidly growing team with an abundance of growth and impact opportunities.

Our products and responsibilities include:

  • SDK generation for multiple platforms
  • Building higher level abstractions and components that developers can easily incorporate into their apps
  • Rich sample applications that developers can use as building blocks or starting points

As a software engineer on the Developer Experience team, you will own the design, creation, and maintenance for all of the above. You will have the opportunity to participate in the community of developers who build on the Square Developer Platform and use that knowledge along with usage data to create new tools and components as well as adapt existing ones to meet the needs of our developer customers.

You will:

  • Help build our Developer Platform, for use by millions of Square Merchants and a key strategic asset of Square.
  • Design and implement easy to use tools and reusable components, making thoughtful tradeoffs between consistency and availability when both are not possible.
  • Work cross-functionally with our product teams, *many* other engineering teams, and partner developers to design and implement Squares global developer platform.
  • Build systems that maintain customers sensitive data and hold Square to the highest standards for security and compliance.
  • See the big picture to design fault tolerant systems so the team can be brave, move fast, and break things, without ever showing a negative impact to customers.
  • Take input from and work with our developer community on Square SDK projects and contribute to other projects as appropriate.


You have:

  • BA/BS degree or equivalent practical, working experience (4+ years preferred)
  • A strong sense of customer empathy and desire to influence the product direction
  • Innate curiosity and a desire to be responsible for all aspects of building Square's developer platform in a small, highly focused, and very rapidly growing team.
  • Understanding and curiosity in creating well thought out, scalable, low-latency, global systems.
  • Been self-driven, open to collaboration and willing to grow as an engineer

Even better if you are experienced in:

  • Full-stack development (Ruby on Rails, Java, Javascript, PHP, or equivalents)
  • Cross-team and cross-functional collaboration
  • Creating SDKs and developer tools
  • Working collaboratively or contributing to open source projects

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) 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.