Senior Applied Scientist, Catalog AI, Amazon Selection and Catalog Systems

Amazon • Seattle, WA

5d

About The Position

Are you fascinated by the power of Large Language Models (LLM) and applying Generative AI to solve complex challenges within one of Amazon's most significant businesses? Amazon Selection and Catalog Systems (ASCS) builds the systems that host and run the world's largest e-Commerce products catalog, it powers the online buying experience for customers worldwide so they can find, discover and buy anything they want. Amazon's customers rely on the completeness, consistency and correctness of Amazon's product data to make well-informed purchase decisions. We develop LLM applications that make Catalog the best-in-class source of product information for all products worldwide. This problem is challenging due to sheer scale (billions of products in the catalog), diversity (products ranging from electronics to groceries) and multitude of input sources (millions of sellers contributing product data with different quality). We are seeking a passionate, talented, and inventive individual to join the Catalog AI team and help build industry-leading technologies that customers will love. You will apply machine learning and large language model techniques, such as fine-tuning, reinforcement learning, and prompt optimization, to solve real customer problems. You will work closely with scientists and engineers to experiment with new methods, run large-scale evaluations, and bring research ideas into production.

Requirements

• 5+ years of building machine learning models for business application experience
• 8+ years of applied research experience
• PhD, or Master's degree and 6+ years of applied research experience
• Experience programming in Java, C++, Python or related language
• Experience with neural deep learning methods and machine learning
• Experience with modeling tools such as R, scikit-learn, Spark MLLib, MxNet, Tensorflow, numpy, scipy etc.
• Experience with large scale distributed systems such as Hadoop, Spark etc.
• Experience researching about machine learning, deep learning, NLP, computer vision, data science
• Experience with Large Language Model (LLM) fine-tuning, prompt engineering, distillation, cost-optimization or reinforcement learning techniques

Responsibilities

• Design and implement LLM-based solutions to improve catalog data quality and completeness
• Conduct experiments and A/B tests to validate model improvements and measure business impact
• Optimize large language models for quality and cost on catalog-specific tasks
• Collaborate with engineering teams to deploy models at scale serving billions of products

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Number of Employees: 5,001-10,000 employees