Security Engineer - Detection & Response (AI)

TL;DR

Security Engineer - Detection & Response (AI): Leading day-to-day security threat management and incident response for AI systems with an accent on threat hunting, intrusion detection, and security automation. Focus on optimizing detection use cases, analyzing global infrastructure patterns, and reducing threats through automation.

Location: Tokyo, Japan

Company

xAI is building AI systems designed to accurately understand the universe and aid humanity in its pursuit of knowledge.

What you will do

• Lead day-to-day security threat management, identifying and managing potential incidents.
• Develop and optimize detection use cases to improve the quality and effectiveness of security monitoring.
• Design and lead threat hunting missions to quantify and reduce threats across global infrastructure.
• Manage log collection, security scanning, and intrusion detection systems.
• Develop automation to reduce false positives and handle security events automatically.
• Participate in a 24/7 on-call rotation for security incident response.

Requirements

• 2+ years of relevant information security experience.
• Strong Python scripting skills for implementing security automation.
• Knowledge of cloud security fundamentals and networking.
• Proficiency with macOS, Windows, or Linux operating systems.
• Experience building queries and dashboards for security monitoring.
• Experience with malware analysis, forensics, or penetration testing.

Nice to have

• Experience with Elastic, OpenSearch, or similar platforms.
• Knowledge of open source security automation tooling.
• Certifications such as CISA, CRISC, CGEIT, Security+, or CASP+.

Culture & Benefits

• Small, highly motivated team focused on engineering excellence.
• Flat organizational structure where leadership is given to those who show initiative.
• Environment that rewards curiosity and a strong work ethic.
• Hands-on culture where all employees contribute directly to the mission.