Senior Software Engineer, Cash App Banking

You Will

• Design, build, and own high-quality features and systems that power the Cash App Taxes filing experience, from federal and state form logic to e-file submission.
• Translate complex tax rules and requirements into clean, maintainable, and well-tested code in close partnership with Tax Product Specialists.
• Build tools and guardrails that enable non-technical contributors to make code changes safely that maintain our quality standards.
• Drive architectural and design decisions, ensuring our tax software remains scalable, secure, and maintainable.
• Write reliable, well-tested code and establish best practices for coding, testing, deployment, and documentation.
• Collaborate cross-functionally with Quality Assurance, Tax Product Specialists, Cloud Platform, Design, Product, Customer Care, and other teams to deliver cohesive solutions.
• Proactively identify and resolve issues related to accuracy, reliability, and performance, balancing new feature development with ongoing maintenance.
• Mentor teammates through code reviews, technical discussions, and knowledge sharing, fostering a culture of continuous improvement.
• Stay informed about emerging technologies and industry best practices to continually refine our development processes.
• Apply an AI-first mindset in your everyday work, raising the bar of AI application on our team.

You Have

• 6+ years of professional software development experience, preferably in a fast-paced or product-centric environment. Experience in the tax industry is a major plus.
• Strong technical skills in backend development, including system design, architecture, and object-oriented programming.
• A track record of delivering reliable, high-quality software solutions on schedule.
• Excellent communication skills with the ability to collaborate effectively with both technical and non-technical stakeholders.
• Strong problem-solving skills with attention to detail and a methodical approach to debugging and implementation.
• A Bachelor's degree in Computer Science, Engineering, or a related field (or equivalent experience).
• Passion for building innovative software that simplifies complicated processes for everyday users.

Technologies We Use and Teach

• Java / Kotlin
• iBatis / SQL Relational Databases
• Logging & monitoring tools — Datadog, Splunk, New Relic
• GCP / AWS
• GitHub
• HTTP, JSON, gRPC, Protocol Buffers
• Okta
• Linear
• AI Coding Agents (Claude, Codex, etc.)