Senior Software Engineer, Financial Crimes Cash Tooling (Full Stack)

  • San Francisco, CA
  • 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

You Will: 

  • Create amazing data exploration and criminal case management tools for Square's Compliance organization
  • Write and deploy code across all of Cash App's ever-evolving architecture
  • Work with Cash App feature teams and support launches by building tooling to expose misuse by bad actors
  • Develop and support our tools as products, with a focus on elegant solutions, usability, and our customer needs
  • Build our own platform of services and data pipelines, architected for scale, and designed to anticipate the future


You Have:

  • 6+ years of industry experience or equivalent
  • Worked on distributed systems where data consistency and availability at scale is required
  • Passionate about working on Fintech, blockchain, machine learning, and data science products
  • Some experience building front-ends for the products you have built
  • An iterative approach to identifying MVPs and shipping

Technologies we use and teach

  • Event-driven and microservice architectures
  • Kafka
  • Kotlin, Modern Java (11+), Ruby
  • Sharded and unsharded MySQL at scale, key-value stores like Redis, your garden variety of NoSQL wide-column databases

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) 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.


At Square, 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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