Principal Applied Scientist — AI-Powered Shopping Leader

Amazon Science; Seattle (WA); On-site; USD 180,000 - 240,000; Full time

Job summary

Amazon Science seeks a Principal Applied Scientist to lead transformative ML initiatives in personalized shopping. You will architect science strategy for a large, multidisciplinary organization, shipping ML-powered products to hundreds of millions of customers and shaping real-time ranking and recommendation systems.

You will mentor scientists, define the frontier in LLM-based reasoning, and collaborate with product, design, and engineering to turn ideas into scalable, production-ready

Qualifications

• PhD in Computer Science, Machine Learning, Statistics, or related field, OR Master's degree and 6+ years of applied research experience
• 5+ years of building machine learning models for business applications, with proven track record of shipping ML-powered products to production
• Deep expertise in machine learning engineering with hands-on experience building and deploying models at scale
• Strong programming skills in Python, Java, C++, or related languages with ability to write production-quality code
• Experience mentoring junior scientists and engineers
• Experience distilling informal customer requirements into problem definitions, dealing with ambiguity and competing objectives

Responsibilities

• Innovate new features and models that have huge impact on the customer experience.
• Leverage the use of advanced machine learning to create customer shopping experience at Amazon's scale - for all Amazon customers across all countries in realtime
• Be a key leader on a multidisciplinary team across science, product, design, and engineering to see through ideas from inception, prototype, to launch in the hands of all Amazon's customers
• Drive the science roadmap across multiple teams, helping coordinate a cohesive science agenda across the org.
• Mentoring applied scientists across the org, growing their skills and careers.

Skills

ML model development

Production ML systems

Mentoring

Stakeholder communication

Education

PhD in CS/ML/Statistics

Master's with 6+ years of applied research

Tools

Python

Java

C++

Job description

Amazon Science seeks a Principal Applied Scientist to lead transformative ML initiatives in personalized shopping. You will architect science strategy for a large, multidisciplinary organization, shipping ML-powered products to hundreds of millions of customers and shaping real-time ranking and recommendation systems.

You will mentor scientists, define the frontier in LLM-based reasoning, and collaborate with product, design, and engineering to turn ideas into scalable, production-ready