Sr.SoftwareDevelopmentEngineer

About the Team Join our Portal Experience team as we build the next generation of personalized, self-service marketing experiences for Amazon's advertising platforms. We're transforming how 2 million daily advertisers interact with Seller Central, Amazon Ads Console, and other key portals through innovative solutions that deliver consistent, data-driven customer experiences at scale. You'll be joining a growing 2-pizza team with experienced engineers who have deep knowledge of our tech stack. This is an excellent opportunity to work on high-impact projects that directly affect millions of users while developing your skills in distributed systems, APIs, and large-scale web applications. What You'll Do As a Sr. Software Development Engineer on the Portal Experience team, architect high-throughput systems serving millions of daily advertisers across Amazon's marketing portals. You'll navigate complex 1P/3P integrations, drive technical strategy, and influence partner teams on ambitious initiatives. Leading through ambiguity, you'll shape the roadmap, mentor engineers, and make architectural decisions that balance immediate delivery with long-term vision—owning the full lifecycle from design through operations for this critical business function. Key job responsibilities Own and architect critical systems at scale. You'll serve as a technical leader for services that power personalized marketing experiences for millions of daily advertisers across Seller Central, Amazon Ads Console, and other key portals. You'll design and build high-throughput, low-latency solutions that integrate both first-party and third-party services, making architectural decisions that balance performance, reliability, and business value. Navigate complex technical and organizational landscapes. You'll work across a sophisticated tech stack involving both 1P Amazon services and 3P integrations (CMS platforms, targeting systems, data orchestration tools) to deliver a critical business function. Yo