Software Engineer, Trust (Limits)

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 ecosystem, developing unique financial products, including Afterpay/Clearpay, to provide a better way to send, spend, invest, borrow and save to our 50+ million monthly active customers. We want to redefine the world’s relationship with money to make it more relatable, instantly available, and universally accessible.

Today, Cash App has thousands of employees working globally across office and remote locations, with a culture geared toward innovation, collaboration and impact. We’ve been a distributed team since day one, and 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.

The Role

Cash App has grown rapidly to 70+ million users moving billions of dollars daily. To support this, we are building out Trust — a new Platform organization responsible for product experiences aimed at promoting the trust of the increasingly complex Cash App ecosystem. Trust works to improve Cash App access for our customers, while limiting access for bad or unauthorized users by detecting and preventing improper use across all of our core product areas. The teams under Trust creating these mission critical services and products include Identity, Access, Risk Controls and Support Automation. 

We appreciate broad perspectives, a willingness to dive deep, and a readiness to work collaboratively across many disciplines (including product, design, operations, legal, data science, ML).

The Limits Platform team is responsible for applying daily, weekly and monthly limits on customer transactions across the Cash App ecosystem. We do this to manage risk and provide control over our products, and to maintain the trust of our customers. Our systems track transactions across the vast majority of Cash App products, and check them against our limit thresholds. As a server engineer on the Limits Platform team, you will build scalable and performant solutions to protect our customers and allow them to gain access to the global financial system. The contributions you make on this team will be used by millions of people globally.

You will

• Design, build and support the core systems used to track usage and check product limits in Cash App
• Manage the scalability of the Limits Platform to support Cash App’s growth
• Work closely with product teams as they leverage the Limits Platform for their products
• Collaborate with cross-functional partners in design, product, risk and data science
• Be responsible for the availability and performance of a critical system making rapid decisions at scale
• Help define and implement our roadmap and identify which problems the team needs to solve

You Have

• Bachelor's degree in Computer Science (or equivalent practical experience)
• 2+ years of relevant industry experience
• Proficiency in at least one programming language (Java, Kotlin, Golang, or similar)
• Experience working with APIs and backend systems
• Strong problem-solving skills and willingness to learn
• Effective communication skills and ability to work in a team environment
• Basic familiarity with databases such as MySQL or DynamoDB
• Exposure to cloud-based infrastructure (AWS, Kubernetes) is a plus
• Interest in financial systems and risk management is a plus

Technologies We Use and Teach

• Java 11 including JUnit, Hibernate, Guice, and Jersey
• Kotlin
• HTTP, JSON, gRPC, and Protocol Buffers
• DynamoDB & MySQL
• Amazon Web Services
• Event driven architecture

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 identity or 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.

Block is a globally distributed company and this role will require working with other employees in multiple time zones. You may be required to perform work outside of normal business as part of this role