Amit Baran Roy is a Senior Software Development Engineer at Amazon Ads, where he leads ad selection and auction infrastructure within Amazon's Publisher Decisioning Engine (PDE). Over the past 4+ years, Amit has designed and delivered core programmatic advertising systems that power ad serving across Amazon's largest publisher platforms, driving multi-million-dollar revenue impact through auction optimization, throughput engineering, and scalable system design. He is passionate about high-performance distributed systems, ad tech architecture, and leveraging AI to improve developer productivity in advertising technology.