Senior Software Engineer - Financial Platform (Network Connections), Cash App

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

Company Description

It all started with an idea at Block 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, borrow and save to our millions of monthly active users. With a mission to redefine the world's relationship with money by making it more relatable, instantly available and universally accessible, at Cash App you'll have the opportunity to make a real-world impact with your career.

Today, Cash App has thousands of employees around the world with a culture geared toward creativity, collaboration and impact. We’ve been a distributed team since day one, and continue to value working across time zones and continents both remotely and in our Cash App offices.

Our offices are great, but many of our roles can be done remotely from the countries where Block operates. We tailor our experience to champion our employees’ creativity and productivity wherever they are.

Check out our locations, benefits and more at

Job Description

Cash App’s Financial Platform team is responsible for building systems that power products built by Cash App. We build deep integrations with underlying financial infrastructures and ensure that our products are able to scale. 

The Network Connections team is responsible for building a highly available, reliable and scalable platform of services to support the Financial platform issuing teams. The team works closely with the network providers such as VISA, building high level abstractions on top of the card networks to empower other Cash App teams to build amazing customer experiences for our 10 million + monthly active card customers.

At Cash App, we hire the best people for the role no matter where in the world they are based. This means you’ll be working in a distributed team that focuses on autonomous, asynchronous work while using synchronous work when it makes sense. We believe that people work best when they are empowered and have the autonomy to get their job done. You will have the flexibility to customize your day and ways of working with a shared goal that everyone in the team has a great work/life balance. 

You will:

  • Design, build and support the core systems used to power all transactions on Cash App.

  • Break existing monoliths into event-driven microservices.

  • Build Observability in large scale complex distributed systems.

  • End to end ownership of the services in running in production.

  • Creatively solve challenging technical problems at scale.

  • Partner closely with product managers, data scientists, product engineers, and business leads to define our roadmap 

  • Have autonomy to research and achieve outcomes with support when you need it.

  • Contributing to the growth of our development capabilities through leading, mentoring and supporting fellow engineers.


You have: 

  • 6+ years of experience delivering quality software

  • Natural curiosity to learn new technologies, solve interesting problems and build quality software

  • A love for designing and maintaining large-scale distributed systems

  • Experience in measuring and monitoring availability, latency and overall system health.

  • Experience in SRE principals such as embracing risk, SLO/SLA, eliminating toil, chaos testing etc

  • Technical initiative and leadership on previous projects

  • Bachelor's Degree in Computer Science, or equivalent experience

Technologies we use and teach:

  • Java, Kotlin, Go

  • Jooq, Guice, GRPC, Armeria

  • Kafka, SQS

  • MySQL, TiDB, DynamoDB

  • Kubernetes, Istio, Envoy, AWS

  • SignalFx, Datadog, Promotheus

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.

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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