Software Development Engineer, Measurement, Ad Tech, and Data Science (MADS) - Tax & Promotions — New York

Build the mission-critical backend systems that ensure advertisers worldwide are taxed correctly, invoiced compliantly, and rewarded appropriately — designing tax calculation services, government e-invoicing integrations, and promotion engines that power billing across Amazon's global advertising business. Your code will directly impact how we calculate and apply advertising taxes across jurisdictions and orchestrate incentive programs that drive advertiser growth. The TAP (Tax & Promotions) team within Amazon Ads owns the services that handle tax compliance, regulatory invoicing, and promotion consumption for Sponsored Ads, DSP, and vendor billing across worldwide marketplaces. You'll work on challenging backend problems in a high-impact domain — building scalable, maintainable distributed systems that process billing at global scale. You'll collaborate with experienced engineers to deliver solutions that span tax calculation, e-invoicing integrations, and sophisticated credit and incentive programs, while growing your expertise in algorithms, system design, and distributed systems. Key job responsibilities - Design and develop scalable backend services for advertising tax calculation, regulatory compliance, and invoicing across global jurisdictions - Build and maintain promotion engines that orchestrate advertiser credits and incentive programs at scale - Develop government e-invoicing integrations that ensure compliance across worldwide marketplaces - Deliver end-to-end features across the billing stack — from design through implementation, testing, deployment, and operations - Collaborate with experienced engineers to ensure solutions are scalable, maintainable, and aligned with long-term architectural goals - Write high-quality, well-tested code and participate in design and code reviews - Drive operational excellence through monitoring, automation, and continuous improvement of mission-critical billing services - 3+ years of non-internship professional software development experience - Experience programming with at least one software programming language - 2+ years of non-internship design or architecture (design patterns, reliability and scaling) of new and existing systems 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 - Experience programming with at least one modern language such as Java, C++, or C# including object-oriented design - Bachelor's degree in computer science or equivalent - 5+ years of full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations experience 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, NY, New York - 158,100.00 - 213,800.00 USD annually