Security Engineer - Detection & Response (Japan) | X | InterviewCat Jobs - テック企業エンジニア厳選求人検索

業務内容

Lead day-to-day security threat management and incident response across the organization.
Identify and manage potential incidents; collaborate with partner teams on known/suspected threats.
Support threat intelligence, threat hunting, intrusion detection, and incident response following best practices.
Participate in a 24/7 on-call rotation; communicate updates to stakeholders during incidents.
Identify and develop new detection use cases; optimize existing detections to reduce false positives.
Collaborate on technical directions and solutions with other teams.
Research and analyze patterns in security events across X’s global infrastructure.
Identify, design, and lead threat hunting missions to quantify and reduce threats.
Manage and support log collection, security scanning, intrusion detection, and other security systems.
Design and assist in automation to reduce false positives and automate event handling.
Analyze the security posture of systems via testing and vulnerability impact analysis.
Drive continual improvement in processes, procedures, and automations.

グローバルなインフラを横断する高度なセキュリティ運用、脅威情報、 Threat Hunting の経験を積める。
検出機能・自動化・プロセス設計を組み立てる機会があり、組織全体への影響度が高い。
セキュリティ分析ツール（クエリ/ダッシュボード）や自動化スキルを体系的に強化可能。
24/7のインシデント対応を通じた対応力・コミュニケーション力が鍛えられ、上位職種（シニアセキュリティエンジニア、Threat Hunter、セキュリティプログラムリード等）への道が開ける。