Cyber Security Defense (Head of Department)

• Develop and execute the Cyber Defense strategy aligned with organizational goals, customer requirements and the evolving threat landscapes.
• Establish frameworks, processes, and KPIs for SOC, Incident Response, TVM, AppSec, Red/Blue Teaming, and Adversary Simulation.
• Serve as a senior advisor to the CISO and executive leadership on cyber risks, readiness, and emerging threats.

• Oversee 24x7 SOC operations, ensuring effective monitoring, detection, and response to security events, across levels 1-3.
• Drive continuous enhancement of detection engineering, threat hunting, and security analytics.
• Implement best-in-class security tooling, automation, and operational processes.

• Lead internal Red Team and offensive security capabilities, including penetration testing.
• Define testing methodologies, operational rules of engagement, and reporting standards.
• Translate offensive findings into actionable improvements for defensive teams and architecture.

• Oversee the Incident Response program, ensuring rapid and effective handling of security incidents.
• Lead tabletop exercises, simulation drills, and readiness assessments.
• Facilitate and lead high/critical incident responses, when the Incident Response Manager is unavailable. Coordinate with legal, communications, and executive stakeholders during major incidents.

• Own the enterprise-wide vulnerability management strategy, including prioritization, remediation, and reporting.
• Drive continuous scanning, assessment, and metrics to reduce risk across infrastructure, applications, and cloud environments.
• Collaborate with engineering and operations teams to ensure timely and effective remediation.
• Facilitate and the zero-day vulnerability response process, when the Incident Response Manager is unavailable.

• Lead the organization's AppSec program, including secure SDLC practices, code reviews, SAST/DAST tools, and developer enablement.
• Partner with software engineering to embed security into product and platform design.

• Develop and run adversary simulation programs that mimic real-world threat actors.
• Use intelligence-led scenarios to evaluate detection capabilities, response effectiveness, and organizational resilience.

• Experience & Leadership: 15–20 years of progressive experience across the various cyber defense disciplines (SOC, Incident Response, Red/Blue teams, or similar defensive/offensive functions.) Proven experience leading cyber defense teams. Demonstrated ability to hire, mentor, and lead high-performing technical teams.
• Education: Bachelor's degree in Cybersecurity, Information Technology, Computer Science or a related discipline.
• Technical Expertise: Strong knowledge of threat detection, incident response, adversary tactics (MITRE ATT&CK), vulnerability management, and secure software development. Excellent incident management, communication, and executive reporting skills.
• Language Skills: Proficient in English for effective communication and coordination.
• Availability: In the absence of IR team members, utilize a flexible work schedule to facilitate the security incident response process for high/critical incidents.

• Education and Certifications: Masters degree in Cybersecurity, Information Technology, Computer Science or a related discipline is preferred. Industry-recognized credentials such as CISSP, CISM, OSCP/OSCE, GIAC (GSEC, GCIA, GCIH, GPEN, GXPN) are highly desirable.
• Framework Experience: Familiarity with, and prior participation with FIRST (Forum of Incident Response and Security Teams) is preferred.
• Language Skills: Bi-lingual in English and Korean language proficiency is preferred to support global coordination and communication.

• Collaborative Leadership: Team members lead cross-functional service delivery efforts, coordinating with internal stakeholders, MSSPs, and external partners to drive delivery of services and maintain transparency.
• Continuous Improvement & Accountability: The team regularly adjusts the Information Security strategy and roadmap in alignment with customer needs, changing threat landscape and industry trends.

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