# Principal Attack Engineer, AI/LLM at Horizon3.ai

- Company: Horizon3.ai
- What the company does: Horizon3 uses real-world attacks to safely show what attackers can actually do in your environment—so you can fix and prove what matters. Backed by NEA.
- Company website: https://horizon3.ai/
- Type: Startups (AI role)
- Level: Principal and up
- Location: US, Remote
- Work setup: Remote
- Pay: $238K to $280K base salary per year (USD)
- Posted: 2026-10-30
- Apply by: 2026-12-14
- Apply: https://jobs.ashbyhq.com/horizon3ai/01cbcb29-e28c-4732-84d2-80fa4cf2fed2?utm_source=1752vc&utm_medium=careers
- Page: https://www.1752.vc/careers/jobs/horizon3-ai-principal-attack-engineer-ai-llm/

## About the role

We are hiring a Principal Attack Engineer specializing in AI/LLM security to define the long-term technical direction for AI/LLM offense at Horizon3 . You will lead the company’s most complex and consequential efforts to break AI and agentic systems and turn that research into scalable, autonomous attack capabilities inside NodeZero, our autonomous pentesting platform. Found on 1752vc Careers, the job board for startup and VC roles.

## What they're looking for

- We are a fully remote company, and this job may require up to 10% of travel to be successful

Tags: Engineering

Source: 1752vc Careers, https://www.1752.vc/careers/jobs/horizon3-ai-principal-attack-engineer-ai-llm/