SDE building AWS's agentic coding tool Kiro in Santa Clara — model orchestration and dev-facing infrastructure

AWS is hiring a Software Development Engineer for Kiro, its frontier AI coding agent, based in Santa Clara, CA. The role covers distributed systems, real-time streaming, multi-model orchestration, and context systems for an agent that handles development tasks end-to-end, with the JD explicitly welcoming candidates whose careers 'haven't followed a traditional path.'

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What this interview tests

Multi-model orchestration and intelligent routing
OO design, concurrency, and multi-threading fundamentals
Distributed/embedded systems design and scaling patterns
Context/memory systems for AI agents
Full software development lifecycle practices

Common question themes

Design a system that routes and orchestrates requests across multiple AI models

Walk through an OO design decision you made in a multi-threaded system

How would you architect a context layer that stays current as a codebase evolves

Describe a distributed or embedded system you built and how you handled scaling

Tell me about your code review and testing practices across the development lifecycle

How candidates describe it

Real Software Development Engineer interview stories — retold from candidates' public write-ups, with sources.

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