Software Development Engineer II Search Science and Data Infrastructure

Amazon Search creates customerfocused product search solutions and technologies. Whenever a customer visits an Amazon site worldwide and types in a query or browses through product categories our systems go to work. We delight customers when we accurately understand their intent expressed via a query or image and reflect that understanding throughout the search page from layout to the search results and navigation. We make shopping effortless by helping customers easily explore our vast selection narrowing down a myriad of options to a manageable consideration set while providing key information to make high confidence decisions with low postpurchase regret

Search Science Data Infrastructure team is responsible for delivering high quality and fresh ML model training data features and providing seamless access to all ML artifacts through a federated Feature Store infrastructure. This bigdata platform provides the ML training data to Amazon search ranking matching quality search economics and also powers livesite features including search suggestions query understanding spelling search result ranking and personalization. Furthermore 350 teams across Amazon consume our datasets to power analytics and behavior models. We are located in downtown Palo Alto a short walk from numerous shops and restaurants and right across from the Caltrain station.


Key job responsibilities
As a Software Engineer you will:
Lead development of services and infrastructure at the intersection of machine learning big data and distributed systems. Our products and services empower hundreds of science teams across Amazon to deliver machine learning at scale for ML model training Feature engineering and Data quality monitoring.
You will help manage machine learning lifecycle and operations using AWS AI services DL compute resources and our core search backend services for query understanding semantic matching and relevance ranking.
You will build scalable dataintensive infrastructure that processes huge amounts of logs catalogs transactional data and telemetry signals. By doing so we enable teams to become more datadriven and build robust and explainable ML services.
You will work with partners on data experimentation to advance Amazon product search making it available across all geographic regions with variety of product search and discovery use cases across many categories.
Lead the design write code and ultimately deploy big data and machine learning services. These services define the foundation of our search R&D processes supporting science product development and production of the worlds largest product search engine.
Possess expert knowledge in performance large scale distributed system scalability system architecture and engineering best practices.
Obsess over operational excellence evaluate system performance security design system metrics and driving quality improvements



4 years of noninternship professional software development experience
2 years of noninternship design or architecture (design patterns reliability and scaling) of new and existing systems experience
Experience programming with at least one software programming language
Experience in machine learning data mining information retrieval statistics or natural language processing

4 years of full software development life cycle including coding standards code reviews source control management build processes testing and operations experience
Masters degree in computer science or equivalent

Amazon is committed to a diverse and inclusive workplace. Amazon is an equal opportunity employer and does not discriminate on the basis of race national origin gender gender identity sexual orientation protected veteran status disability age or other legally protected status.

Los Angeles County applicants: Job duties for this position include: work safely and cooperatively with other employees supervisors and staff; adhere to standards of excellence despite stressful conditions; communicate effectively and respectfully with employees supervisors and staff to ensure exceptional customer service; and follow all federal state and local laws and Company policies. Criminal history may have a direct adverse and negative relationship with some of the material job duties of this position. These include the duties and responsibilities listed above as well as the abilities to adhere to company policies exercise sound judgment effectively manage stress and work safely and respectfully with others exhibit trustworthiness and professionalism and safeguard business operations and the Companys reputation. Pursuant to the Los Angeles County Fair Chance Ordinance we will consider for employment qualified applicants with arrest and conviction records.

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Our compensation reflects the cost of labor across several US geographic markets. The base pay for this position ranges from $129300/year in our lowest geographic market up to $223600/year in our highest geographic market. Pay is based on a number of factors including market location and may vary depending on jobrelated knowledge skills and experience. Amazon is a total compensation company. Dependent on the position offered equity signon payments and other forms of compensation may be provided as part of a total compensation package in addition to a full range of medical financial and/or other benefits. For more information please visit This position will remain posted until filled. Applicants should apply via our internal or external career site.