Software Development Engineer III, Platform Matching Systems and Policies (IAPP)

About the role

The Product Identity and Semantic Matching team in WW Amazon Stores is looking for a passionate and talented Senior Software Development Engineer with deep expertise in building large-scale distributed systems and AI/ML-powered applications to help build the world's best product catalog.

Responsibilities

• Owning end-to-end design, implementation, and operational excellence for complex features spanning multiple services and teams
• Leading architecture decisions for large-scale systems handling hundreds of millions of transactions daily with AI/ML components
• Navigating technical and organizational ambiguity; translating vague requirements into implementable solutions under tight schedules
• Designing systems from scratch in fast-evolving domains; integrating with Amazon's established ecosystem including LLM deployments, agentic systems, and workflow optimization pipelines
• Building and optimizing inference infrastructure for multimodal models at scale, including embedding-based systems, and cascaded inference architectures
• Driving change across teams through technical influence, unblocking others and establishing architectural consistency across engineering and science workstreams
• Mentoring junior and mid-level engineers; providing meaningful feedback through code reviews and technical guidance
• Communicating effectively across multiple stakeholders; making strategic trade-offs balancing velocity with long-term system health
• Partnering closely with Applied Scientists to translate ML research into production systems that process billions of records

Qualifications

• 5+ years of non-internship professional software development experience
• 5+ years of programming with at least one software programming language experience
• 5+ years of leading design or architecture (design patterns, reliability and scaling) of new and existing systems experience
• Experience as a mentor, tech lead or leading an engineering team