Staff Software Engineer, Financial Platform - Cash App

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 ecosystem, developing unique financial products, including Afterpay, to provide a better way to send, spend, invest, borrow and save to our 47 million monthly active customers. We want to redefine the world’s relationship with money to make it 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 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.

Check out our locations, benefits, and more at cash.app/careers!

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. 

About the teams that are hiring in the US & Canada on Financial Platform:

Transactional Health: We own the card platform that processes billions of card transactions and securely moves millions worth of funds across Cash and Square. We’re tightly-knit cross-functional team that values collaboration (solving problems together), ownership (being empowered to drive outcomes), inclusiveness (bias for listening, curiosity and asking questions) and celebrating each other’s wins. This focus has enabled us to move the needle on many important areas of our platform. This includes spearheading observability and SLOs across the org, rethinking how our services interact with each other, optimizing our card program and partnering with product teams across Cash and Square to develop new capabilities that enable magical user-experiences that our customers love – at scale.

Card Payments Rails: We own the processing of every debit / credit card payment across all our card networks. We are building the payment processor that abstracts the complex domain-specific card networks operations into a simple to use, highly scalable, reliable, and low latency APIs that power all card transactions across Cash App products. Our domain knowledge is deep in the card processing stack, and as a platform team, we want to deliver the best success rate for card transactions with the least cost and the most coverage to enable as many clients to use cards for transactions. Not only do we process transactions that withdraw money from a card, but we also use technologies that enable us to instantly push funds into clients’ cards and deliver on Cash App’s mission to make money instantly available and universally accessible.

Card Disputes: We are building a new disputes platform to power all of CashApp’s acquiring disputes globally. Our platform abstracts the complexities of combating fraud through dispute deflection and managing automatic dispute responses to payment processors. We strive to minimize disputes losses and maximize disputes win rates through our deep domain knowledge in the acquiring payments and disputes stack.

Qualifications

You will:

• Design, build and support the core systems used to power all transactions on Cash App
• Break existing monoliths into event-driven microservices 
• 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: 

• 8+ years of experience delivering quality software
• Natural curiosity to learn new technologies, solve interesting problems and build quality software
• Desire to find flaws in a system with many moving parts and take whatever steps are necessary to fix them
• Desire to perform and grow as an engineer
• Technical initiative and leadership on previous projects

Technologies we use and teach:

• Java, Kotlin, Go
• Kubernetes, AWS
• Jaeger, Prometheus, SignalFx
• JUnit
• Hibernate, Guice, GRPC

Additional Information

Block takes a market-based approach to pay, and pay may vary depending on your location. U.S. locations are categorized into one of four zones bas