Software Development Engineer, Devices Software & Services

About the role

Amazon is seeking a Software Development Engineer to join its Devices Software & Services team. The role focuses on building scalable AI and agent infrastructure, including model integrations, execution systems, evaluation tooling, and APIs, while ensuring reliability, safety, performance, and developer experience.

Responsibilities

• Invent New Paradigms: Move beyond traditional voice UI to build "Ambient Intelligence" experiences that span Alexa, Fire TV, and mobile/wearable surfaces, focusing on proactive assistance rather than reactive commands
• Rapid Innovation: Operate in a fast-paced environment where you will prototype, test, and deploy features that leverage multimodal inputs (camera, audio, and documents) to create personalized customer magic
• Cross-Surface Continuity: Ensure that a customer’s experience is persistent and context-aware beyond the device boundaries - whether they are at their desk using Alexa.com, in their living room with Fire TV, or on the go with a wearable
• Design, build, test, and operate scalable backend services and libraries that power AI/LLM-driven features
• Integrate and harden model providers, tools, and agent capabilities behind clean, versioned interfaces — with sane failure behavior, observability, and cost/latency awareness
• Build evaluation and regression tooling so AI behavior is measured, gated, and trustworthy — not vibes
• Apply security-conscious, fail-closed design to anything touching credentials, user data, tool execution, or autonomous actions
• Work fluently alongside AI coding assistants: decompose tasks an agent can execute, critically review AI-generated code, and keep engineering rigor high at AI speed