Who can apply: US-based role. The employer has not said which states are eligible — confirm before applying.
Location as listed by the employer: “US, Remote”
Apply on Horizon3Ai's site ↗
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About this role
Horizon3Ai is hiring for a Staff Attack Engineer, AI/LLM role (full-time). See the official posting for full details.
Requirements
- Expert-level Python and software engineering skills.
- Solid penetration testing fundamentals and understanding of common attack chains.
- Familiarity with AI/LLM security frameworks (e.g., OWASP Top 10 for LLMs, MITRE ATLAS).
- Experience in a security product or offensive security team, ideally with shipped offensive capabilities or tooling.
- Proven ability to break AI/LLM and agentic systems.
- Clear understanding of trust boundaries around AI tools, data sources, and permissions, and how to systematically test and exploit them.
- Expert-level ownership – drives high-complexity, high-risk programs and sets strategy, not just execution.
- Self-motivated – identifies problems and builds solutions proactively.
Summarized from the employer's posting — check the full posting for every requirement.
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