Sr. Software Development Engineer, Amazon Shopping (rufus)

Amazon Amazon · Big Tech · Seattle, WA · Software Development

Senior Software Development Engineer role focused on building and scaling agentic AI applications powered by large language models for the Amazon Shopping experience. The role involves architecting, designing, and developing back-end systems and online services, including service orchestration, agent frameworks, and real-time processing. It also includes contributing to the technical roadmap, service reliability, and optimizations for intelligent agents that reason, plan, and execute tasks. The team aims to improve search using large-scale foundation models and empower conversational applications for online shopping.

What you'd actually do

  1. architect, design, and develop agentic services and applications powered by large language model
  2. build expertise in online service architecture, API development, and distributed systems that power responsive agentic AI applications at scale
  3. develop service orchestration patterns, efficient agent frameworks, and real-time processing systems
  4. 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
  5. help establish best practices that improve LLM application efficiency, enable new agentic AI features for Stores customers with LLM capabilities

Skills

Required

  • 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

Nice to have

  • 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)

What the JD emphasized

  • expertise in back-end system and online service
  • build expertise in online service architecture, API development, and distributed systems
  • develop service orchestration patterns, efficient agent frameworks, and real-time processing systems
  • 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
  • help establish best practices that improve LLM application efficiency, enable new agentic AI features for Stores customers with LLM capabilities
  • design, implement large scale distributed agentic AI applications at scale
  • Knowledge of Machine Learning and LLM fundamentals, including transformer architecture, training/inference lifecycles, and optimization techniques
  • 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)

Other signals

  • building agentic services
  • large scale distributed agentic AI applications
  • improve LLM application efficiency
  • intelligent agents that can effectively reason, plan, and execute complex tasks