Software Engineer, Cash App Controls

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 worlds 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. Weve 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

On Cash Apps Controls team we build essential platform infrastructure that protects millions of Cash App customers while ensuring fair and equitable access to financial services. We partner across engineering product and risk teams to build highly-available infrastructure that powers critical trust and safety decisions throughout Cash Apps ecosystem. We are an AI-driven engineering team we use agentic coding tools across our entire development lifecycle from design exploration through implementation and review and we expect every engineer to do the this role youll implement scalable solutions that enable billions of safe customer interactions that create a holistic experience that fosters the trust safety security and support of our customers and their assets directly contributing to Blocks mission of economic empowerment through accessible and secure financial services.

You Will

• Partner closely with product managers designers engineers and business leads to scope plan design build and launch new features as well as maintain existing functionality of our product controls ecosystem
• Lead technical discussions within your team and contribute to design and product discussions with partners across the organization
• Leverage your experience and knowledge to grow your teammates technical breadth and depth through mentoring
• Direct AI agents across the full development lifecycle from prototyping and implementation to debugging and code review operating as the architect and decision-maker while AI handles the building
• Expand whats possible with AI tooling identify opportunities to automate repetitive work improve code quality through AI-driven review and share effective patterns with your team

You Have

• 6 years experience building and operating highly available services
• Experience contributing to cross-functional technical efforts and coordinating across teams
• Strong collaboration skills and customer empathy
• A growth mindset and comfort navigating open-ended problems
• Well-developed curiosity and initiative to build creative solutions to complex problems
• Contributed to the growth of fellow engineers through technical leadership and mentoring
• Demonstrated fluency with AI-assisted development tools (e.g. Claude Code Cursor GitHub Copilot or similar agentic coding tools) in real production work not just familiarity but regular effective use
• You stay current on the rapidly evolving landscape of AI tooling and actively experiment with new capabilities as they emerge

Technologies We Use and Teach

• AI-Driven Development: Claude Code Goose (Blocks open-source AI agent) Cursor GitHub Copilot Anthropics Model Context Protocol (MCP)
• Kotlin Java
• HTTP JSON gRPC Protocol Buffers
• DynamoDB MySQL
• Event-driven architecture (Kafka)
• DataDog Prometheus
• AWS Kubernetes

Were 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 throughout the recruitment process. If you require an accommodation let your recruiter know. Want to learn more about what were doing to build an inclusive workplace Check out our Inclusion & Diversity page.