Senior Software Engineer, Trust (Access)

Senior Software Engineer, Trust (Access)

Seattle, WA, US

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 57+ million users moving billions of dollars daily. To support this incredible growth, we are building out the Access organization. Our mission is to maximize trust and expand access to our ecosystem, ensuring that every user feels safe and secure while using our platform. We play a critical role in providing financial access to customers who are underserved by traditional financial institutions, and we are committed to creating a seamless and secure user experience. Access is the cornerstone of Cash App, responsible for managing authentication, sessions, authorization, and protecting against account takeover and inauthentic logins.

You Will:

• Design, build, and operate the APIs and services that power Cash authentication and authorization
• Evolve our architecture to scale with growth in customers and developers, working across large monolith codebases and microservices
• Collaborate with product management and design to lead the development of new, high-impact experiences and help define the roadmap
• Mentor, lead, and support your colleagues to grow the team
• Contribute to the broader tech and open source communities

You Have:

• 5+ years experience building and operating quality software
• Demonstrated technical initiative on previous projects
• Strong communication skills and customer empathy
• High technical standards in software testing and delivery
• Growth mindset and a healthy comfort with ambiguity

Bonus:

• Experience with product security and authN/authZ standards
• Experience working in large codebases and breaking apart monoliths
• Experience working in a distributed team

Technologies We Use and Teach:

• Java, Kotlin, Golang
• MySQL, Hibernate, DynamoDB
• Kafka and event-driven architecture

We believe in being fair, and are committed to an inclusive interview experience, including providing reasonable accommodations to disabled applicants throughout the recruitment process.

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.

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