
Job Overview
Location
US, Remote
Job Type
Full-time
Category
Cybersecurity
Date Posted
April 11, 2026
Full Job Description
📋 Description
- • Staff Attack Engineer specializing in AI/LLM security to break AI and agentic systems and turn research into automated attacks inside the NodeZero autonomous pentesting platform.
- • Design and execute prompt injection, defense evasion, tool-use exploitation, and infrastructure attacks targeting AI systems; conduct threat modeling and productize manual techniques into scalable, reliable attack modules.
- • Build and extend LLM-powered applications with focus on cost, safety, hallucination guardrails, reliability, and observability; design microservices orchestrating LLM tasks integrated with NodeZero.
- • Join a fast-growing remote cybersecurity company founded by former U.S. Special Operations cyber operators, startup engineers, and frustrated practitioners; mission-driven team focused on proactive threat detection and fixing exploitable attack vectors before criminals exploit them.
Skills & Technologies
About Horizon3.ai, Inc.
Horizon3.ai provides autonomous security testing and attack surface management software. Its NodeZero platform continuously assesses enterprise networks, clouds, and applications to find exploitable weaknesses, validate fixes, and prioritize risks. The company serves Fortune 500, government, and mid-market organizations seeking proactive defense without manual red teams.
Subscribe to the weekly newsletter for similar remote roles and curated hiring updates.
Newsletter
Weekly remote jobs and featured talent.
No spam. Only curated remote roles and product updates. You can unsubscribe anytime.
Similar Opportunities

Akaysha Energy Pty Ltd
2 months ago

Arctic Wolf Networks, Inc.
26 days ago

Innovecs LLC
1 day ago
