Distributed Systems Engineer – AI Agent Orchestration Backend

Socket.dev; Seattle (WA); On-site; USD 144,000 - 194,000; Full time

Job summary

Amazon is seeking a Software Development Engineer to build and maintain the Kiro Web server, orchestrating multiple AI agent sessions through ACP, JSON-RPC, and WebSocket delivery. You will design the per-session architecture, handle lifecycle events, and implement the team orchestration layer with inter-agent routing and parallel dispatch.

You will contribute to API design, test coverage, monitoring, and rotation support while delivering multi-platform distribution and real-time notifications

Qualifications

• 3+ years of non-internship professional software development experience.
• 2+ years of non-internship design or architecture experience of systems.
• 1+ years of software development engineer or related occupational experience.
• 1+ years of designing and developing large-scale distributed software applications and services.

Responsibilities

• Build and maintain the Kiro Web server (Fastify/Node.js/TypeScript) — session manager, ACP client adapter, WebSocket gateway, and REST API.
• Implement the process-per-session architecture: spawn kiro-cli ACP child processes, manage JSON-RPC 2.0 communication, handle lifecycle events.
• Build the multi-agent team orchestration layer and topology validation, parallel dispatch, and skill injection.
• Design and implement the WebSocket fan-out system for real-time notifications across sessions/teams/roles.
• Develop Kiro's multi-platform distribution system with metadata services, CDN configuration, and release automation.
• Implement tool approval interception to handle permission requests from agents via frontend and relay decisions.
• Write tests, build monitoring/alerting, and participate in on-call rotations.
• Contribute to API design and architectural direction.

Skills

Software development

OO design

Distributed systems

C#

C++

Java

Perl

Education

Bachelor's degree in Computer Science, Engineering, Mathematics, or related field

Bachelor's degree in computer science or equivalent

Tools

C#

C++

Java

Perl

Job description

Amazon is seeking a Software Development Engineer to build and maintain the Kiro Web server, orchestrating multiple AI agent sessions through ACP, JSON-RPC, and WebSocket delivery. You will design the per-session architecture, handle lifecycle events, and implement the team orchestration layer with inter-agent routing and parallel dispatch.

You will contribute to API design, test coverage, monitoring, and rotation support while delivering multi-platform distribution and real-time notifications