Software Development Engineer, AWS Invoicing

AWS Invoicing Entities owns the systems that define, store, resolve, and surface the entities and billing relationships behind every AWS commerce transaction. We ensure every transaction is attributed to the correct seller, buyer, broker, and billing family — and we enable AWS to expand into new markets by launching new Sellers of Record safely and efficiently.

Our services are Tier 1 dependencies for the AWS billing pipeline: Tax, Invoice, Payments, Bill Computation, and Cost Allocation all depend on data we produce. We operate at massive scale across all AWS partitions and regions.

Key job responsibilities
- Design and build distributed services that store, resolve, and synchronize entity data across AWS's global infrastructure (DynamoDB, OpenSearch, Kinesis, SNS, AWS Glue, cross-region replication).
- Develop and extend the rules engine that determines the correct Seller of Record for every AWS transaction - a system where correctness has direct legal, tax, and compliance implications.
- Own the full lifecycle of features: design, implementation, testing, deployment, and operational excellence in production.
- Improve the reliability and performance of Tier 1 billing-path services that process millions of events daily.
- Build tooling and automation that reduces the developer effort required for Commerce Platform market expansions from weeks to near-zero.
- Collaborate with partner teams across Commerce Platform (Tax, Invoice, Payments, Organizations) to evolve shared entity models and APIs.
- Mentor junior engineers through code reviews, design discussions, and operational best practices.

About the team
- High impact, high visibility - Your code determines the legal entity on every AWS invoice worldwide.
- Greenfield + modernization - We're consolidating fragmented legacy systems into a unified entity platform with modern, configurable architecture.
- Scale - Tier 1 services processing billing events for millions of AWS accounts across all regions and partitions.
- Market expansion - You'll directly enable AWS to enter new countries and jurisdictions through the systems you
- Ownership - Small team, large scope. You'll own entire services end-to-end. - 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
- 1+ years of software development engineer or related occupational experience
- 1+ years of designing and developing large-scale, multi-tiered, multi-threaded, embedded or distributed software applications, tools, systems, and services using: C#, C++, Java, or Perl experience
- 1+ years of Object Oriented Design experience
- Bachelor's degree or foreign equivalent in Computer Science, Engineering, Mathematics, or a related field
- Experience programming with at least one software programming language - 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.

Our inclusive culture empowers Amazonians to deliver the best results for our customers. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process, including support for the interview or onboarding process, please visit https://amazon.jobs/content/en/how-we-hire/accommodations for more information. If the country/region you’re applying in isn’t listed, please contact your Recruiting Partner.

The base salary range for this position is listed below. Your Amazon package will include sign-on payments and restricted stock units (RSUs). Final compensation will be determined based on factors including experience, qualifications, and location. Amazon also offers comprehensive benefits including health insurance (medical, dental, vision, prescription, Basic Life & AD&D insurance and option for Supplemental life plans, EAP, Mental Health Support, Medical Advice Line, Flexible Spending Accounts, Adoption and Surrogacy Reimbursement coverage), 401(k) matching, paid time off, and parental leave. Learn more about our benefits at https://amazon.jobs/en/benefits.

USA, WA, Seattle - 143,700.00 - 194,400.00 USD annually