Senior Full-Stack Engineer - Autonomous Defense Platform

Horizon3.ai; United States; Remote; USD 195.000 - 235.000; Vollzeit

Benefits dieser Stelle

Inclusive Team

Growth Opportunities

Innovative Culture

Hybrid & Remote Work

Competitive Compensation

Zusammenfassung

Horizon3.ai is seeking a Senior Full-Stack Engineer for the Autonomous Defensive team. You will build the NodeZero platform runtime and the front-end surfaces, collaborating closely with AI researchers to produce production-safe autonomous pentest tooling that scales across thousands of tenants.

Remote-first company with opportunities for in-office collaboration where needed. You will own the end-to-end experience from backend services to frontend interfaces, ensuring secure, observable, and

Qualifikationen

• Bachelor's degree in CS/CE or related field.
• 7+ years of professional software engineering experience in OO/FP languages (Python, Go, Scala, C++, TS).
• Proven experience delivering backend APIs, especially GraphQL.
• Production experience with React, TypeScript, and modern CSS for complex workflows.
• Experience on cloud platforms (AWS, Azure, GCP) and container tech (Docker, Kubernetes).
• Expert SQL proficiency.
• Experience designing and operating distributed systems in production: asynchronous workflows, queues, retries, idempotency, partial failures.

Aufgaben

• Build and own the agent execution runtime and durable, long-running workflows with checkpointing and timeouts.
• Design and implement the tool layer and a registry with versioning, validation, and per-tenant enablement.
• Develop the connector framework for third-party security controls (EDR, firewall, IAM, SIEM).
• Implement safe-change pipelines with dry-run, approvals, rollout, rollback, and per-tenant audit trails.
• Create the operator-facing frontend in React/TypeScript and the related data/streaming layers (WebSockets).
• Support multi-tenant isolation, egress control, quotas, and cross-tenant cache/log integrity.
• Develop ETL/GraphQL support for agent context, run history, remediation state, and training data pipelines.
• Instrument observability, tracing, cost, and per-tenant analytics.
• Collaborate with AI researchers and product to move capabilities from prototype to production.

Kenntnisse

Backend APIs (GraphQL)

React & TypeScript

Cloud platforms (AWS/Azure/GCP)

Docker & Kubernetes

SQL proficiency

Distributed systems

On-call ownership

Ausbildung

Bachelor's Degree in Computer Science / related field

Tools

GraphQL

Web stack technologies

Jobbeschreibung

Horizon3.ai is seeking a Senior Full-Stack Engineer for the Autonomous Defensive team. You will build the NodeZero platform runtime and the front-end surfaces, collaborating closely with AI researchers to produce production-safe autonomous pentest tooling that scales across thousands of tenants.

Remote-first company with opportunities for in-office collaboration where needed. You will own the end-to-end experience from backend services to frontend interfaces, ensuring secure, observable, and