CrawlJobs Logo

Cyber Defense Head of Department

United States, Irvine 181240.00 - 259160.00 USD / Year · Job Posted January 10, 2026
Apply Position
Job Link Share

Job Description

The Cyber Security Defense Head of Department (HOD) will lead and mature our organization’s end-to-end defensive security capabilities. This senior leadership role oversees the Security Operations Center (SOC), Blue Team, Red Team, Penetration Testing, Incident Response, Threat & Vulnerability Management (TVM), Application Security, and Adversary Simulation functions. The ideal candidate is both a visionary leader and a seasoned technical expert capable of building high-performing teams, implementing modern security practices, and driving continuous improvement across all cyber defense operations functions.

Job Responsibility

  • 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

Requirements

  • 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
  • Bachelor’s degree in Cybersecurity, Information Technology, Computer Science or a related discipline
  • 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
  • Proficient in English for effective communication and coordination
  • In the absence of IR team members, utilize a flexible work schedule to facilitate the security incident response process for high/critical incidents

Nice to have

  • 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
  • Familiarity with, and prior participation with FIRST (Forum of Incident Response and Security Teams) is preferred
  • Bi-lingual in English and Korean language proficiency is preferred to support global coordination and communication

Looking for more opportunities?

Search for other job offers that match your skills and interests.

Similar Jobs for

Cyber Defense Head of Department

8 matching positions

Cyber Security Defense Head of Department

The Cyber Security Defense Head of Department (HOD) will lead and mature our org...
Location
Location
United States , Irvine
Salary
Salary:
181240.00 - 259160.00 USD / Year
haeaus.com Logo
Hyundai AutoEver America
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 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
  • Bachelor’s degree in Cybersecurity, Information Technology, Computer Science or a related discipline
  • 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
  • Proficient in English for effective communication and coordination
  • In the absence of IR team members, utilize a flexible work schedule to facilitate the security incident response process for high/critical incidents
Job Responsibility
Job Responsibility
  • 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
  • Fulltime
Read More
Arrow Right
New

Administrative Assistant

We are looking for a detail-oriented Administrative Assistant to support front d...
Location
Location
United States , Austin
Salary
Salary:
Not provided
https://www.roberthalf.com Logo
Robert Half
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • High school diploma or equivalent required
  • Working knowledge of front desk procedures and office support practices
  • Experience managing calendars, scheduling rooms, or coordinating multiple appointments at once
  • Proficiency with Microsoft Office applications and comfort using business communication platforms such as Teams
  • Strong organizational, time-management, and multitasking abilities in a fast-paced environment
  • Excellent verbal and interpersonal communication skills, with a clear commitment to customer service and professionalism
  • Ability to handle confidential information with discretion, work independently or collaboratively, and remain flexible as priorities change
Job Responsibility
Job Responsibility
  • Welcome guests and employees at the front desk, direct them appropriately, and alert team members when visitors arrive
  • Handle incoming calls through Microsoft Teams or related phone systems, route inquiries efficiently, and provide helpful first-level assistance
  • Oversee daily reception activities, including receiving packages, distributing deliveries, and responding to general office questions
  • Coordinate meeting room schedules, help maintain shared space availability, and support smooth day-to-day office flow
  • Keep the lobby, reception desk, and main conference areas neat, stocked, and ready for visitors and internal meetings
  • Assist with visitor support tasks such as parking validation when needed and refreshment restocking throughout the office
  • Represent the organization by delivering courteous, attentive service during every interaction
  • Take on additional administrative or front office duties as assigned to support business needs
What we offer
What we offer
  • medical
  • vision
  • dental
  • life and disability insurance
  • 401(k) plan
  • Fulltime
Read More
Arrow Right
New

Working Student – Upstream Marketing & Project Management (GEOX)

As a Working Student in Upstream Marketing, you will support strategic and opera...
Location
Location
Germany , München
Salary
Salary:
Not provided
https://www.baxter.com/ Logo
Baxter
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Enrolled student in Marketing, Business Administration, Biomedical Engineering, or related field
  • Strong interest in medical devices, healthcare marketing, and upstream strategy
  • Having excellent organizational and project management skills would be desirable
  • Analytical mindset with attention to detail and ability to structure complex topics
  • Strong communication skills and ability to work in cross-functional, international teams
  • Proficiency in Copilot, PowerPoint and Excel
  • familiarity with project management tools is a plus
  • Fluent in English (German is a plus)
Job Responsibility
Job Responsibility
  • Support end-to-end project management of GEOX-related initiatives (planning, tracking, and execution)
  • Assist in cross-functional coordination with Marketing, R&D, Regulatory Affairs, and regional teams
  • Contribute to the development of value propositions, messaging, and upstream marketing materials
  • Prepare presentations, reports, and business case inputs for internal stakeholders
  • Conduct market research, competitor analysis, and customer insights generation
  • Support portfolio and product lifecycle activities (e.g., launches, updates, sustaining initiatives)
  • Track project milestones, timelines, and performance indicators
  • Assist in maintaining structured documentation and project tools (e.g., Copilot, SharePoint, Excel, project trackers)
  • Parttime
Read More
Arrow Right
New

Residential Childrens Support Worker

Are you an experienced support worker looking for both flexibility and a sense o...
Location
Location
United Kingdom , Carlisle
Salary
Salary:
15.35 - 17.50 GBP / Hour
https://www.randstad.com Logo
Randstad
Expiration Date
July 04, 2026
Flip Icon
Requirements
Requirements
  • Previous experience in a residential childcare or a similar support setting is essential
  • An empathetic nature with the ability to remain calm under pressure
  • Strong interpersonal skills to engage with both children and professional teams
  • You must be willing to undergo an enhanced DBS check (or have one on the update service) and provide full employment references
Job Responsibility
Job Responsibility
  • Building positive, trusting relationships with vulnerable young people
  • Assisting with daily routines, including education, hobbies, and life skills
  • Managing challenging behaviors with empathy and de-escalation techniques
  • Ensuring the highest standards of safeguarding and care are met at all times
  • Maintaining accurate daily logs and reports
What we offer
What we offer
  • Flexibility of shift patterns
  • Fulltime
Read More
Arrow Right
New

Operations Coordinator

Location
Location
United Kingdom , Belfast
Salary
Salary:
27000.00 - 30000.00 GBP / Year
jobs.360resourcing.co.uk Logo
360 Resourcing Solutions
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Proven experience within administration and customer service
  • Knowledge of office management systems and procedures
  • Strong administration and IT skills – using Microsoft packages
  • Excellent time management skills and the ability to prioritize work
  • Attention to detail and problem solving skills
  • Excellent written and verbal communication skills
  • Strong organizational skills with the ability to multi-task
  • Ability to cover some on-call work
Job Responsibility
Job Responsibility
  • Part of a team responsible for the smooth-running of a busy engineering depot
  • Working day to day with our Engineers, you will help keep them organised by scheduling work and dealing with the relevant administration involved
  • Work closely with your colleagues and external customers (domestic and commercial) to provide a first-class service
What we offer
What we offer
  • Ongoing Health & Safety and new skills training
  • Benefits platform - Mintago
  • 28 days including bank holidays
  • Opportunity to grow and develop
  • Fulltime
Read More
Arrow Right
New

Bank Support Worker - Domestic Abuse

The Nelson Trust is a leading charity supporting people affected by addiction, t...
Location
Location
United Kingdom , Swindon
Salary
Salary:
13.45 GBP / Hour
jobs.360resourcing.co.uk Logo
360 Resourcing Solutions
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Experience or understanding of working with vulnerable women and complex needs
  • Knowledge of safeguarding procedures and a commitment to best practice
  • Ability to remain calm and professional when managing challenging situations
  • Strong communication skills and confidence in building therapeutic relationships
  • Good IT and administrative skills with attention to detail
  • Empathetic, non-judgemental approach with strong professional boundaries
  • Commitment to equality, diversity, confidentiality, and safeguarding
Job Responsibility
Job Responsibility
  • Maintain the safety and security of residents and the building at all times
  • Carry out regular property checks, including communal areas and resident rooms
  • Control access to the building and complete routine patrols
  • Provide practical and emotional support to women with complex needs
  • Manage incidents, emergencies, and complete accurate reports
  • Maintain records and deliver clear handovers between shifts
  • Promote a clean, supportive, and structured environment
  • Follow safeguarding, health & safety, and organisational procedures
What we offer
What we offer
  • Flexible bank working to suit your availability
  • Full training, including trauma-informed practice and medication administration
  • Opportunity to gain experience in specialist supported housing services
  • A supportive and values-driven team environment
Read More
Arrow Right
New

Human Resources

We are seeking a motivated and people-focused HR detail oriented to join our tea...
Location
Location
United States , Norcross
Salary
Salary:
Not provided
https://www.roberthalf.com Logo
Robert Half
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Bachelor’s degree in Human Resources, Business Administration, or related field (or equivalent experience)
  • Strong communication, organization, and problem-solving skills
  • Ability to handle sensitive and confidential information with discretion
  • Proficiency in Microsoft Office and/or HRIS systems
Job Responsibility
Job Responsibility
  • Support employee lifecycle activities including onboarding, offboarding, and HRIS data management
  • Maintain employee records and ensure compliance with company policies and employment laws
  • Assist with benefits administration, open enrollment, and employee inquiries
  • Provide guidance on HR policies, procedures, and best practices
  • Coordinate recruiting efforts including scheduling interviews and candidate communication
  • Partner with hiring managers to support talent acquisition strategies
  • Assist with employer branding and candidate experience initiatives
  • Serve as a point of contact for employee questions and concerns
  • Support employee engagement programs, surveys, and initiatives
  • Assist with performance management cycles and coaching conversations
What we offer
What we offer
  • medical
  • vision
  • dental
  • life and disability insurance
  • 401(k) plan
Read More
Arrow Right
New

Registered Nurse, Emergency Department, Part-Time, Days, Baptist ED North

Baptist Health is seeking a Registered Nurse (RN) to join our Emergency Departme...
Location
Location
United States , Jacksonville
Salary
Salary:
Not provided
baptistjax.com Logo
Baptist Health (Florida)
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 1-2 years Medical Surgical Nursing Experience
  • Telemetry Experience
  • Emergency Department Experience Preferred
  • Hospital Experience
  • Associate of Science in Nursing Required
  • Bachelor of Science in Nursing Preferred
  • Licensed Registered Nurse Required
  • Basic Life Support (BLS) Required
  • Advanced Cardiac Life Support (ACLS) Preferred
  • Certified Emergency Registered Nurse (CEN) Preferred
Job Responsibility
Job Responsibility
  • Provide safe, compassionate, and evidence-based nursing care to patients with a wide range of medical, surgical, and emergent conditions
  • Assess, plan, implement, and evaluate individualized patient care plans
  • Educate patients and families on diagnoses, treatments, and plans of care
  • Collaborate with physicians and interdisciplinary teams to ensure coordinated, high-quality care
  • Coordinate services provided by ancillary departments to support optimal patient outcomes
  • Serve as a patient advocate, promoting patient safety, dignity, and satisfaction
  • Uphold and embody the mission, vision, and values of Baptist Health
  • Participate in staff meetings, unit-based initiatives, and continuous quality improvement activities
  • Parttime
Read More
Arrow Right