Senior Software Engineer - Balances - Cash App

  • Los Angeles, CA, USA
  • Employees can work remotely
  • Full-time
  • Alternate Location: Los Angeles, United States

Company Description

It all started with an idea at Square in 2013. Initially built to take the pain out of peer-to-peer payments, Cash App has gone from a simple product with a single purpose to a dynamic app, bringing a better way to send, spend, invest, and save to our millions of monthly active users. We want to make the world’s relationship with money more relatable, instantly available, and universally accessible. This is our mission, and it’s why working at Cash App means so much more than a job.

Today, Cash App has thousands of employees working globally across office and remote locations, with a culture geared toward creativity, collaboration and impact. We’ve been a distributed team since day one, and we’ve got offices and remote teammates across the globe. Our offices are great, but many of our roles can be done remotely from the countries where Cash App operates. No matter the location, we tailor our experience to ensure our employees are creative, productive, and happy. 

Check out our locations, benefits, and more at to learn more!

Job Description

At Cash App, money inflows are the fuel of our business. As a member of the Balances engineering team, you are responsible for helping our customers get money into the Cash App to use all of the products we have to offer (Cards, Stock, BTC, P2P). You will make it seamless for customers to move money into the Cash App and manage their balances by building new ways to move money and improving on what we have in place. What you build will directly influence the success of Cash App and our ability to impact the financial lives of millions of people across the world. In addition, you’ll get a chance to improve our infrastructure to make our systems more robust and scalable as we build the best platform for money management on the planet. 

You'll have the opportunity to move into a technical lead role, with responsibility for a team of engineers and the entire lifecycle of new projects.

As a member of the Cash engineering team, you will:

  • Identify, scope and lead large technical projects with enormous impact across the business

  • Be actively involved in setting strategic direction and implementing an expanding roadmap

  • Own problems end to end from ideation through planning and scoping to implementation and launch

  • Translate functional and technical requirements into detailed architecture and design.

  • Design APIs and data models to work within microservice and event-driven architectures

  • Participate in code and design reviews to maintain our high development standards

  • Evolve and improve existing backend systems to meet product iteration velocity while maintaining a high quality bar

  • Mentor other engineers and help to cultivate a fast growing team



You have:

  • 8+ years of software development or equivalent experience

  • Experience building product/services end-to-end from technical design, implementation, testing to delivery

  • Demonstrated experience working collaboratively in cross-functional teams

  • Drive to find flaws in a system with many moving parts and take whatever steps are necessary to fix them

  • The ability to design and build creative solutions to complex problems

  • Rigor in high code quality, automated testing, and other engineering best practices

  • Bachelor’s Degree or Diploma in Computer Science, Computer Engineering, Software Engineering, or equivalent experience

Technologies we use and teach (you don’t need to have experience using these):

  • Kotlin and Java Web Services

  • Hibernate, MySQL, DynamoDB

  • Kafka and Event based microservices 

  • AWS Cloud Services

  • HTTP, JSON, gRPC, Protocol Buffers

  • OkHttp, Jetty, JUnit, Guice

  • DataDog, Prometheus, SignalFx

Additional Information

Cash App treats all employees and job applicants equally. Every decision is based on merit, qualifications, 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 each office’s corresponding local guidelines.

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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