SoftwareDevEngineerII,BarcodeKnowledgeandPackageHierarchyAuthority

What if the system you built today was used by hundreds of millions of people -- not hypothetically, but literally? Amazon Selection & Catalog Systems (ASCS) is the engine behind the world's largest product catalog. Billions of products. Hundreds of millions of real-time updates daily. Every price change, every new listing, every inventory shift, our systems make it happen, 24/7/365, at a scale where textbook solutions simply don't apply. What Makes This Different This team is early-stage by Amazon standards. We're building brand-new services and tools from scratch, no legacy baggage, minimal operational burden, and a roadmap packed with greenfield projects scaling to worldwide customers this year. You won't just write code. You'll drive technical design across organizational boundaries, own end-to-end solutions, and tackle problems that sit at the intersection of massive scale and real ambiguity: Ensuring product identity and traceability at global scale. Processing and normalizing standardized product data from trading partners worldwide. Extracting structured data from unstructured content using LLMs Automatic classification of items and data at catalog scale Big data visualization and analytics pipelines Massively distributed systems that push the limits of scale and performance If you've ever wanted to work on problems where the answer doesn't exist yet and build it, this is that opportunity. Who You Are You have strong technical design instincts and can architect systems that work reliably at scale You're comfortable leading across team boundaries — aligning with business owners, senior developers, and principals You're energized by ambiguity and greenfield work, not intimidated by it You ship, you learn, you iterate Why This Team, Why Now Direct impact on hundreds of millions of customers and sellers worldwide, your work shows up in the shopping experience, every day Ground floor of a new technology stack with a clear scaling trajectory and complex problem sp