Applied Scientist II, Core Search

Applied Scientist II, Core Search Amazon.com Services

LLC - 3.5

Seattle, WA Job Details Full-time $142,800 - $193,200 a year 15 hours ago Benefits AD&D insurance Health insurance Dental insurance Flexible spending account RSU Paid time off Adoption assistance Parental leave Employee assistance program Vision insurance 401(k) matching Qualifications AI models Software engineering Data mining Predictive modeling analysis High availability solutions design Conference papers High-performance computing clusters Data structures Testing and evaluation Presentations for conferences or internal meetings Publishing papers in peer-reviewed journals System design UNIX Java Master's degree System design for system development Production systems C++ Machine intelligence Doctor of Philosophy Model deployment Distributed systems Developing large-scale AI models Natural language processing Data analytics Participating in conferences Data-driven problem-solving Model training Algorithm design research A/B testing Full Job Description

DESCRIPTION

The Amazon Search team creates customer-focused search solutions and technologies. Whenever a customer visits an Amazon site worldwide and types in a query or browses through product categories, Amazon Product Search services go to work. We design, develop, and deploy high performance, fault-tolerant distributed search systems used by millions of Amazon customers every day. Search Autocomplete and Navigation focuses on helping customers express their shopping intent and navigate search results more effectively. In this role, you will invent universally applicable signals and algorithms to improve suggestion generation, recommendations, and ranking, using LLMs and ML techniques. The improvements you make will help hundreds of millions of customers find the right products faster, from the first keystroke through search result refinement. You will work on problems such as fine-tuning large language models for real-time suggestion generation under strict latency constraints, personalizing recommended content to individual customers, building evaluation frameworks for model selection, and designing data-driven guardrails for LLM-generated content. The work will span the whole development pipeline, including data analysis, evaluation system design, prototyping, A/B testing, and creating production-level systems. Key job responsibilities Your responsibilities include but not limited to: Analyze the data and metrics resulting from traffic into Amazon's product search service. Design, build, and deploy effective and innovative ML and LLM solutions to improve search experiences. Evaluate the proposed solutions via offline benchmark tests as well as online A/B tests in production. Publish and present your work at internal and external scientific venues in the fields of

ML/NLP/IR. BASIC QUALIFICATIONS

PhD, or Master's degree and 4+ years of CS, CE, ML or related field experience Experience programming in Java, C++, Python or related language Experience in any of the following areas: algorithms and data structures, parsing, numerical optimization, data mining, parallel and distributed computing, high-performance computing

PREFERRED QUALIFICATIONS

Experience using Unix/Linux Experience in professional software development Experience in state-of-the-art deep learning models architecture design and deep learning training and optimization and model pruning Experience building machine learning models or developing algorithms for business application Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status. Our inclusive culture empowers Amazonians to deliver the best results for our customers. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process, including support for the interview or onboarding process, please visit https://amazon.jobs/content/en/how-we-hire/accommodations for more information. If the country/region you're applying in isn't listed, please contact your Recruiting Partner. The base salary range for this position is listed below. Your Amazon package will include sign-on payments and restricted stock units (RSUs). Final compensation will be determined based on factors including experience, qualifications, and location. Amazon also offers comprehensive benefits including health insurance (medical, dental, vision, prescription, Basic Life & AD&D insurance and option for Supplemental life plans, EAP, Mental Health Support, Medical Advice Line, Flexible Spending Accounts, Adoption and Surrogacy Reimbursement coverage), 401(k) matching, paid time off, and parental leave. Learn more about our benefits at https://amazon.jobs/en/benefits. USA, WA, Seattle - 142,800.00 - 193,200.00 USD annually