Sr. Software Development Engineer, Amazon Shopping (rufus)

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

Software Development Engineer role focused on architecting, designing, and developing agentic services and applications powered by large language models for the Amazon Shopping experience. The role involves building expertise in online service architecture, API development, and distributed systems, with a focus on service orchestration, agent frameworks, and real-time processing. The engineer will contribute to the technical roadmap, service reliability, and optimizations for intelligent agents, aiming to improve LLM application efficiency and enable new agentic AI features.

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

  • agentic services and applications powered by large language model
  • agentic AI applications at scale
  • intelligent agents that can effectively reason, plan, and execute complex tasks
  • agentic AI applications at scale
  • agent evaluation frameworks

Other signals

  • building agentic services powered by LLMs
  • architecting and developing agentic services and applications
  • developing service orchestration patterns, efficient agent frameworks
  • building intelligent agents that can effectively reason, plan, and execute complex tasks