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Software Development Engineer, Kiro Web

Seattle, Washington, United States💼 Full-time💰 $143,700–$194,400🗓 2026-08-04 → 2026-09-26

Core

Build and maintain the Kiro Web server, a frontier developer tool that autonomously tackles development tasks and orchestrates multi-agent teams.

Role type

Senior Software Development Engineer (Backend/Platform)

Builds

Kiro Web server, session manager, ACP client adapter, WebSocket gateway, REST API, and multi-platform distribution system.

Domain

AI-powered developer tools, autonomous software engineering, multi-agent orchestration

Deliverable

production ML models | product features

Required skills

Node.js, TypeScript, Fastify, WebSockets, JSON-RPC 2.0, process management, distributed systems design, API design, system architecture, OOP

Preferred skills

Full SDLC experience, code reviews, source control, build processes, testing, operations

Technologies

Fastify, Node.js 22, TypeScript, WebSockets, JSON-RPC 2.0, pnpm, CloudFront

Responsibilities

Build and maintain the Kiro Web server and session management; Implement process-per-session architecture for kiro-cli; Build multi-agent team orchestration layer; Design and implement WebSocket fan-out system; Build and operate multi-platform distribution system; Implement tool approval interception; Write tests, monitoring, and participate in on-call rotations.

Seniority

Senior, hands-on IC with architectural responsibilities

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