Software Dev Engineer, AFFS - ARS (Amortization Runtime Subledger)

Job description

Join the Amortization Runtime Subledger (ARS) team within Amazon Financial & Fulfillment Services (AFFS), where we build mission-critical financial systems powering Amazon's global operations. Our team owns USL (Universal Subledger) and rACE (replayable Amortization Calculation Engine) systems—fundamental infrastructure processing millions of financial transactions with high accuracy and reliability.

As a Software Development Engineer, you'll design massively scalable distributed systems handling complex financial workflows. You'll work on services requiring low latency, high throughput, and strong consistency, directly impacting Amazon's financial transaction tracking and reconciliation worldwide.

Key job responsibilities

Design, develop, and maintain USL (Universal Subledger) and rACE (replayable Amortization Calculation Engine) systems, ensuring high availability and data integrity for critical financial operations

Own full software development lifecycle

architecture design, implementation, testing, deployment, and operational support of critical financial services

Develop solutions for variance reconciliation, ensuring data consistency and accuracy across financial platforms

Drive operational excellence through robust monitoring, alarming, and automated issue resolution

Mentor junior engineers and raise technical standards through code reviews, design discussions, and best practices

Participate in on-call rotation supporting production systems and resolving critical issues

Optimize system performance and scalability to handle growing transaction volumes

About the team

Amazon Financial Foundation Services (AFFS) integrates business systems to ensure accurate, timely, and auditable financial records across Amazon. Our mission is to enable Amazon businesses to start up, grow, and operate at Amazon scale while reducing manual effort and risk. AFFS teams build systems to record, transform, manage, and report on financial transactions from all Amazon businesses, ensuring seamless financial operations so business units can focus on delighting customers.

Key job responsibilities

- Own full software development lifecycle: architecture design, implementation, testing, deployment, and operational support of critical financial services