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

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
- 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.

BASIC QUALIFICATIONS

- 3+ years of non-internship professional software development experience
- 2+ years of non-internship design or architecture (design patterns, reliability and scaling) of new and existing systems experience
- Experience programming with at least one software programming language

PREFERRED QUALIFICATIONS

- 3+ years of full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations experience
- Bachelor's degree in computer science or equivalent

Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status.

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