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Software Development Engineer , Adaptive Search Relevance

Seattle, Washington, United States💼 Full-time💰 $143,700–$194,400🗓 2026-09-03 → 2026-09-25

Core

Build a multi-agent orchestration platform that autonomously executes ML research workflows from hypothesis generation to production deployment for Amazon's Sponsored Products Search Relevance.

Role type

Senior IC software development engineer (multi-agent orchestration & ML infrastructure)

Builds

Multi-agent orchestration platform, AI-first Auto Research systems, LLM/VLM serving infrastructure, data pipelines for massive datasets

Domain

E-commerce advertising, Generative AI, Large-scale ML infrastructure

Deliverable

production ML models | infrastructure

Required skills

C#, C++, Java, or Perl; Object Oriented Design; Large-scale distributed software application design; System architecture and scaling; Multi-tiered system development

Preferred skills

Full SDLC experience; Machine Learning and LLM fundamentals (transformer architecture, training/inference lifecycles); Managed ML/AI solutions experience

Technologies

C#, C++, Java, Perl, LLMs, VLMs, GPU scheduling, Observability frameworks

Responsibilities

Build and scale multi-agent orchestration platform with fault tolerance and cost controls; Develop AI-first Auto Research systems for parallelized hypothesis testing; Own platform reliability including multi-tenant GPU scheduling and eval frameworks; Productionize LLM/VLM models for efficiency and low-latency serving; Design and build data pipelines for massive datasets; Provide architectural guidance for measurable relevance improvements

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