Key skills
AI-assisted development toolsKotlinJavaHTTPJSONgRPCProtocol BuffersDynamoDBMySQLEvent-driven architectureKafkaDataDogPrometheusAWSKubernetesBuildingoperating highly available servicesCustomer empathyCuriosityGrowth mindsetAIClaudeAgenticGitHubLeadershipMentoringPrototypingCollaboration
About this role
Block is a company focused on increasing access to the global economy through innovative financial products. The role on Cash App's Controls team involves building essential platform infrastructure to protect customers and ensure equitable access to financial services, requiring collaboration across various teams and leveraging AI-driven development tools.
Responsibilities:
- 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 what's possible with AI tooling — identify opportunities to automate repetitive work, improve code quality through AI-driven review, and share effective patterns with your team
Requirements:
- 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