Staff Software Engineer, Financial Platform - Cash App

  • 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 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!

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.


    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 based on a cost of labor index for that geographic area. The successful candidate’s starting pay will be determined based on job-related skills, experience, qualifications, work location, and market conditions. These ranges may be modified in the future.

    Zone A: USD $202,500 - USD $247,500
    Zone B: USD $192,400 - USD $235,200
    Zone C: USD $182,300 - USD $222,800
    Zone D: USD $172,200 - USD $210,400

    To find a location’s zone designation, please refer to this resource. If a location of interest is not listed, please speak with a recruiter for additional information. 

    Benefits include the following:

    • Healthcare coverage
    • Retirement Plans including company match 
    • Employee Stock Purchase Program
    • Wellness programs, including access to mental health, 1:1 financial planners, and a monthly wellness allowance 
    • Paid parental and caregiving leave
    • Paid time off
    • Learning and Development resources
    • Paid Life insurance, AD&D. and disability benefits 
    • Perks such as WFH reimbursements and free access to caregiving, legal, and discounted resources 

    This role is also eligible to participate in Block's equity plan subject to the terms of the applicable plans and policies, and may be eligible for a sign-on bonus. Sales roles may be eligible to participate in a commission plan subject to the terms of the applicable plans and policies. Pay and benefits are subject to change at any time, consistent with the terms of any applicable compensation or benefit plans.

    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, 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. 

    Learn more about our efforts to promote inclusion and diversity at

    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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