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7AI is a foundational AI security company founded in 2024 by Cybereason co-founders Lior Div and Yonatan Striem-Amit. The company emerged from stealth in February 2025 with a platform that pairs a federated SIEM with AI agents capable of detecting, investigating, responding to, and hunting threats, complemented by dedicated threat hunting and threat intelligence capabilities. Backed by $166 million in funding from investors including Index Ventures and Blackstone, 7AI is building the AI foundation for security operations in the agentic era.
As Principal Security Engineer - AI, you will lead the company's AI cybersecurity defense work and shape the platform strategy across cloud and enterprise environments. Your responsibilities will include deciding where AI can reliably take over detection, investigation, and response functions versus where human oversight remains necessary. You will collaborate closely with product, engineering, and research teams to shape the platform roadmap and develop AI security solutions. Direct customer engagement is a core part of the role—you'll work with customers to understand their security posture and processes, then guide their transformation around AI-driven security operations.
Key responsibilities include:
- Leading AI cybersecurity defense initiatives spanning incident response strategy, detection engineering, automated response, threat hunting, threat research, and security automation
- Collaborating with product, engineering, and research teams on platform roadmap and AI security solutions
- Working directly with customers to understand their security posture and guide AI security transformation
- Building and automating realistic attack simulations, adversary emulation scenarios, and large-scale security environments
- Providing technical leadership and mentorship on security best practices, automation design, and incident response methodology
This is a pivotal stage role where your work will shape what 7AI becomes, working alongside security veterans who have built similar systems before. The culture emphasizes respect, collaboration, and a shared bar for excellence.
REQUIREMENTS:
- 15+ years of experience in cybersecurity, including significant time in SOC, Blue Team, Detection Engineering, Threat Hunting, or Incident Response roles
- Strong experience with SOAR platforms and security automation frameworks
- Deep understanding of modern security operations, attacker methodologies, and enterprise security architectures
- Hands-on coding experience with Python or similar languages
- Experience collaborating directly with customers
- Strong understanding of security concepts across endpoint, identity, cloud, and networking
- Excellent problem-solving, communication, and cross-functional collaboration skills
- Genuine interest in AI-driven security operations and autonomous defense systems
