Staff Software Engineer, Financial Platform (Chargebacks)

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/Clearpay, to provide a better way to send, spend, invest, borrow and save to our 57 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. 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:
Chargebacks:
We own the chargebacks platform that minimizes post-payment losses through advanced deflection and response automation, protecting millions in transactions across Cash and parts of Square ecosystem. In close collaboration with Risk AI/ML, Financial Partnerships and Operations teams, we're developing data-driven strategies to manage risk, optimize responses across payment processors, and improve our win rates across various networks. Our focus on observability and service level objectives (SLOs) ensures a high-performance platform that scales seamlessly with Cash and Square's expanding capabilities. In this role, you'll play a key role working cross-functionally to make an impact and shape a resilient, forward-thinking platform that prioritizes trust and operational excellence at scale.
You Will:

• Design, build and support the core systems used to power all transactions on Cash App
• Tackle complex technical challenges creatively and effectively in a fast-paced environment
• Partner closely with product managers, data scientists, product engineers, and business leads to define our roadmap, ensuring alignment across teams and stakeholders
• 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 solutions, including experience as a technical lead
• A strong ability to work cross-functionally, collaborating with diverse stakeholders and adapting to evolving priorities
• 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 with a proactive and solution-oriented mindset
• Technical initiative and leadership on previous projects

Technologies We Use and Teach

• Java, Kotlin
• Kubernetes, AWS
• Datadog
• Kafka
• Temporal
• Snowflake, DynamoDB

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 an equal opportunity employer evaluating all employees and job applicants without regard to identity or any legally protected class. We also consider qualified applicants with criminal histories for employment on our team, and always assess candidates on an individualized basis.
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 will consider qualified applicants with arrest or conviction records for employment in accordance with state and local laws and "fair chance" ordinances.
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.
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.
Zone A:
$198,000 - $297,000 USD
Zone B:
$188,100 - $282,100 USD
Zone C:
$178,200 - $267,400 USD
Zone D:
$168,300 - $252,500 USD
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.