Senior Software Engineer - PubSub/Eventing, Cash App

  • San Francisco, CA, USA
  • Employees can work remotely
  • Full-time

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

The Cash App engineering team is responsible for building and maintaining the systems that make it all work. As an engineer in the PubSub team, we are responsible for providing robust and scalable event systems that support Cash App data ranging from mission-critical payment events to high volume user event and sensor data, requiring us to gain deep expertise in a variety of event driven systems patterns and providing teams the expertise to help them build reliable and predictable event driven systems.

We already have a huge volume of events daily, and expect this to grow by an order of magnitude.

Our teams are remote first and globally distributed. You will have high levels of autonomy and curiosity.

As a senior member of Cash Cloud PubSub engineering team, you'll also collaborate with our stakeholders - including product engineers to:

  • Design, build, and own infrastructure projects that provide critical support for operating event driven systems at scale
  • Build the platform that provides self-serve provisioning, scaling, and management of eventing topics
  • Build and operate continuous integration and chaos testing for our platform
  • Spread event driven architectures across the organization, while mentoring and inspiring fellow engineers

You'll also have the chance to explore and contribute to bleeding edge open source technologies that will form the future of Cash App's cloud eventing platform.


You have:

  • Curiosity, persistence and a desire to get things done
  • Ability to work autonomously, in ambiguity and collaboratively
  • Strong communication skills
  • Worked on systems where data consistency and availability is required
  • Bachelor's Degree in Computer Science or equivalent experience
  • Demonstrated technical initiative on previous projects

Technologies we use and teach:

  • Event driven architectures
  • Apache Kafka / AWS MSK / Kafka Streams / Apache Flink
  • Kotlin, Modern Java (11+), Go
  • Terraform, Container services such as Kubernetes, Istio/Envoy
  • Amazon Web Services

If you have experience with all of these technologies, great! If you don't that's okay too. We spend most of our time using these tools, but we're committed to working on the right technology for the job. As a senior member of the team, we look forward to having your expertise guide us into the future.

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. Square 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.

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.

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.

Privacy Policy