Senior Fullstack Engineer, PayProd - International Squad

  • San Francisco, CA, 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 helping anyone take a payment and never miss a sale, we saw sellers stymied by different, 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, and 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

Payment Products is responsible for understanding the needs of all of the merchants at Square and ensuring that they always get the right solution for their business’ needs. We represent more than half of all merchants, and evaluate, maintain, improve, and create products to solve their problems. 

The Payment ProductsInternational Squad is responsible for delivering new payment methods and adapting existing payments experiences to make Square payments remarkable for our international sellers. We are a data-driven team, focused on experimentation, building solutions of all sizes with meaningful impact to our customers. With the support of the backend engineers on our team, you’ll help to conceptualize and build tools that allow our merchants to run their businesses better than ever before. 

You will:

  • Design, build and optimize the Payment Product experience for businesses using Ruby on Rails, Ember.js, Java, AWS, and MySQL

  • Design and implement A/B tests

  • Build extensive, reliable support for product data logging and metrics

  • Work closely with our product, engineering, analytics, and marketing teams


You have:

  • Server-side experience, ideally in Rails or Java, and familiarity or curiosity about frontend and mobile development

  • Contributed to or led feature releases

  • Excellent interpersonal skills that enable effective communication and collaboration with a variety of stakeholders

  • Empathy for customers and an interest in producing an excellent experience for them

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, veteran status, 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, assessing candidates in a manner consistent with the requirements of the San Francisco Fair Chance Ordinance.


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.

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