Principal AI Scientist, Personalization & Discovery

Prime Video & Amazon MGM Studios; Sunnyvale (CA); On-site; USD 229,000 - 309,000; Full time

Job summary

Amazon.com Services LLC in Sunnyvale is seeking a Principal Applied Scientist to lead the invention, development, and deployment of groundbreaking AI solutions that power personalized experiences for millions of customers. You will shape the vision and direction of ML systems supporting AI-powered customer experiences.

You will collaborate with engineers, product managers, and senior stakeholders to drive cross-functional ML initiatives, design rigorous experiments, and mentor teams while

Qualifications

• PhD (or Master’s with 10+ years of applied experience) in machine learning, computer science, statistics, or a related field
• 8+ years experience designing, building, and deploying ML models for real-world business applications at scale
• Proven leadership in driving cross-functional ML/AI initiatives from ideation through production
• in Python, Java, or C++, and experience with ML frameworks (e.g., TensorFlow, PyTorch)
• Deep expertise in recommendation systems, search relevance, or large-scale personalization systems

Responsibilities

• Invent, prototype, and productionize large-scale AI solutions across Prime Video’s personalization and discovery ecosystem using deep learning, generative AI, reinforcement learning, and optimization techniques
• Provide technical leadership and influence product vision by collaborating closely with engineers, product managers, and senior stakeholders
• Design and lead high-impact A/B tests and data analyses to validate hypotheses and guide product direction
• Drive technical bar-raising across science and engineering teams through mentorship, design reviews, and collaboration
• Stay ahead of industry trends and emerging research; leverage them to evolve long-term strategy and architecture
• Publish impactful research internally and externally (e.g. top-tier conferences and journals)

Skills

ML leadership

Deep learning

Python/Java/C++

TensorFlow

PyTorch

Education

PhD in ML/CS

Tools

TensorFlow

PyTorch

Hadoop

Spark

Job description

Amazon.com Services LLC in Sunnyvale is seeking a Principal Applied Scientist to lead the invention, development, and deployment of groundbreaking AI solutions that power personalized experiences for millions of customers. You will shape the vision and direction of ML systems supporting AI-powered customer experiences.

You will collaborate with engineers, product managers, and senior stakeholders to drive cross-functional ML initiatives, design rigorous experiments, and mentor teams while