Software Development Engineer II - AI/Agent Infra for Devices

vibehackers; Bellevue (WA); Hybrid; USD 144,000 - 194,000; Full time

Benefits offered by this job

Sign-on payments and RSUs

Job summary

Amazon Devices is seeking a Software Development Engineer II to build core AI/agent infrastructure used across device surfaces (Alexa, Fire TV, mobile, wearables). You will design, implement, test, and operate components that integrate model providers, agent capabilities, evaluation pipelines, and APIs consumed by product teams.

The role emphasizes scalable backend services, security-conscious design, and collaboration across teams to ship multimodal features with high reliability and

Qualifications

• 3+ years of non-internship professional software development experience.
• 2+ years of design or architecture experience for new and existing systems.
• 1+ years of experience designing and developing large-scale, multi-tiered, multi-threaded, embedded, or distributed software.
• 1+ years of Object-Oriented Design experience.
• Bachelor’s degree or foreign equivalent in CS/Engineering/Math or related field.
• Experience programming with at least one programming language.

Responsibilities

• Design, build, test, and operate scalable backend services and libraries powering AI/LLM-driven features.
• Integrate and harden model providers, tools, and agent capabilities behind versioned interfaces with observability and cost/latency awareness.
• Implement evaluation, regression, and quality tooling to measure and gate AI behavior.
• Apply security-conscious, fail-closed design for credentials, user data, tool execution, or autonomous actions.
• Work with AI coding assistants and agentic workflows, decompose tasks for agents, review AI-generated code, and ensure testing and code review gates.
• Collaborate across teams to prototype, test, and deploy multimodal features spanning devices with cross-surface continuity.

Skills

System Design

Reliability Engineering

Scalability

Observability

Automated Testing

Code Review

Object-Oriented Design

Security-conscious Design

API Design

Performance Optimization

Prototyping

Cross-team Collaboration

Mentoring

Embedded/Distributed Systems

Evaluation and Quality Engineering

Education

Bachelor's degree in Computer Science/Engineering/Mathematics

Job description

Amazon Devices is seeking a Software Development Engineer II to build core AI/agent infrastructure used across device surfaces (Alexa, Fire TV, mobile, wearables). You will design, implement, test, and operate components that integrate model providers, agent capabilities, evaluation pipelines, and APIs consumed by product teams.

The role emphasizes scalable backend services, security-conscious design, and collaboration across teams to ship multimodal features with high reliability and