Block
Software Engineer, Cash App - Lending Products
About this role
Join Cash App's Lending team to build scalable financial systems that provide accessible credit to millions of users. You'll work on complex backend infrastructure, APIs, and platforms that power lending capabilities across Cash App and Afterpay, collaborating with cross-functional teams on projects from design through production.
What you'll do
- Partner with credit risk, legal, compliance, and product teams to advance lending capabilities
- Lead or contribute to projects across the full lifecycle with ownership of quality and outcomes
- Design and build clean, developer-friendly APIs optimized for uptime, latency, compliance, and cost
- Develop financial primitives and composable building blocks for Block's intelligence layer
- Operate and manage existing Cash App services while experimenting with emerging approaches
- Support team growth through mentoring, recruiting, and contributing to open-source communities
What they're looking for
- 5+ years building complex software systems
- Java or Kotlin experience
- Microservices and event-driven architecture
- SQL and NoSQL databases (MySQL, Aurora, DynamoDB, Redis)
- AWS cloud platform
- gRPC and API design
- AI-first development mindset and agentic engineering
- Financial systems or fintech knowledge (preferred)
Benefits
- Remote-friendly with flexibility across Block operating countries
- Competitive, market-based compensation
- Work on impactful financial products serving 50+ million users
- Collaborative culture focused on innovation and transparency
- Inclusive workplace with fair hiring practices and accessibility support
Opens the official application on the employer’s site. No login required.
Block
Block builds financial infrastructure and lending platforms powering multiple brands including Cash App and Afterpay, along with bitcoin mining hardware through its Proto division. The company is hiring Software Engineers, Backend Infrastructure specialists, Product & Test Engineers, and Legal Systems Engineers to scale payments, lending systems, mining ASICs, and legal technology operations.
- Website
- block.xyz
Likely interview questions
- Tell us about a time you designed and built a complex API from scratch. How did you approach optimization for uptime, latency, and cost?
- Describe your experience building or operating financial systems at scale. What were the key challenges around compliance and reliability?