Full Stack Software Engineer, Integrations Engineering

  • Seattle, WA, USA
  • Employees can work remotely
  • Full-time

Company Description

Since we first opened our doors in 2009, the world of commerce has evolved immensely – and so has Square. After enabling anyone to take a payment and never miss a sale, we saw sellers stymied by disparate, outmoded products and tools that wouldn’t work together. So we expanded into software and started building integrated, omnichannel solutions – to help sellers sell online, manage inventory, run a busy kitchen, book appointments, engage loyal buyers, and hire and pay staff. And across it all, we’ve embedded financial services tools at the point of sale, so merchants can access a business loan and manage their cash flow all in one place.

Today, we’re a partner to sellers of all sizes – large, enterprise-scale businesses with complex commerce operations, sellers just starting out, as well as merchants who began selling with Square and have grown larger over time. As our sellers scale, so do our solutions. We all grow together.

There is a massive opportunity in front of us. We’re building a business that is big, meaningful, and lasting. And we are helping sellers around the world do the same.

Job Description

Commerce is changing, and as part of that Square is transforming from a product company to a platform company. If you join now, you will help Square build a new dedicated Integrations Engineering team (developing a platform called Square Bridge, which enables sellers to integrate their third-party systems (e.g. SAP, NetSuite, Salesforce) in a scalable way. 

Square is in the epicenter of the massive wave of omnichannel retail combining in-store and online / in-app payments, and as Square sellers grow they need more complex third-party systems to manage their businesses. You'll help expand that ecosystem of partners by building Square Bridge, which includes a seller-facing dashboard for configuration and monitoring of their integrations, and server-side code. 

You will:

  • Design, build and maintain an integration platform for premier merchants and partners using Square

  • Write testable, well-documented and maintainable frontend and backend code

  • Work with product, design, and other teams across Square, and with leaders in the Developers organization

  • Be an entrepreneur within Square - this is a new platform product

  • Work with an amazing group of engineers while applying your technical expertise to always improve


  • 5+ years of experience developing production software

  • Interest in working full-stack, from optimizing database transactions to building distributed systems and frontend web applications

  • Experience applying popular front-end, back-end and database technologies (e.g. Ember.js, Java/Spring, MySQL)

  • A strong sense of customer empathy and desire to influence the product direction

  • Been self-driven, open to collaboration and willing to grow as an engineer

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. 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, 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

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.

Privacy Policy