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 organizations 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: 1520 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: Bachelors 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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