Sr. Software Development Engineer, Amazon Shopping (Rufus)

Were enhancing the shopping experience on Amazon through the conversational capabilities of large language models and were looking for innovative professionals who are passionate about technology and customer experience. Youll have the opportunity to contribute meaningfully to the industry while working alongside talented scientists engineers and technical program managers (TPMs) to create solutions that serve our customers.
If youre excited about collaborating with a dynamic team and contributing to this evolving field wed love to have you join us on this journey!

Key job responsibilities
Were looking for an experienced Software Development Engineer with expertise in back-end system and online service to architect design and develop agentic services and applications powered by large language model.
In this role you will build expertise in online service architecture API development and distributed systems that power responsive agentic AI applications at scale. Youll get opportunities to develop service orchestration patterns efficient agent frameworks and real-time processing systems partnering with engineers and scientists in a fast-paced environment to deliver exceptional user experiences. Youll also contribute to our technical roadmap service reliability metrics and optimizations focused on building intelligent agents that can effectively reason plan and execute complex tasks on behalf of users.
In this role youll help establish best practices that improve LLM application efficiency enable new agentic AI features for Stores customers with LLM capabilities. Youll work with your team to design implement large scale distributed agentic AI applications at scale partnering with technical and business leaders in a collaborative environment to create value for our customers. Youll also contribute to prioritization estimation and sprint planning activities.

About the team
The charter of the Amazon Shopping Team is to improve shopping on Amazon using the conversational capabilities of large language models. We are working on an AI-first initiative to further improve the way we do search using large-scale foundation models. These foundation models are also used in downstream applications by various partner teams in Amazon Stores. Our goal is to build large language models (LLMs) which can empower conversational applications and facilitate online shopping.

- 5 years of non-internship professional software development experience
- 5 years of programming with at least one software programming language experience
- 5 years of leading design or architecture (design patterns reliability and scaling) of new and existing systems experience
- Experience as a mentor tech lead or leading an engineering team
- Knowledge of Machine Learning and LLM fundamentals including transformer architecture training/inference lifecycles and optimization techniques

- 5 years of full software development life cycle including coding standards code reviews source control management build processes testing and operations experience
- Experience building or operating LLM-powered agent systems (tool use ReAct loops multi-step orchestration)
- Experience with agent evaluation frameworks offline evaluation LLM-as-Judge composite scoring or quality measurement at scale.
- Experience hosting or serving large language models at scale (model deployment inference optimization GPU cluster management vLLM/TensorRT)

Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status disability 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.

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 for more information. If the country/region youre applying in isnt 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 CA Palo Alto - 193300.00 - 261500.00 USD annually
USA WA Seattle - 168100.00 - 227400.00 USD annually