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Sr Security Subject Matter Expert

Job in Houston, Harris County, Texas, 77246, USA
Listing for: Witt O'brien's LLC
Full Time position
Listed on 2026-01-20
Job specializations:
  • Security
    Cybersecurity, Security Manager
Job Description & How to Apply Below
Sr Security Subject Matter Expert page is loaded## Sr Security Subject Matter Expert locations:
US - TX - Houston time type:
Part time posted on:
Posted Yesterday job requisition :
R3249
** Sr Security Subject Matter Expert – WOB
**** Position Summary
** The Senior Security Subject Matter Expert (SME) is a senior authority responsible for designing, leading, and overseeing comprehensive security strategies for enterprise environments and large-scale international events. This role includes developing an end-to-end, multi-domain security plan for a major international city hosting a high-profile global event. The SME will coordinate across government agencies, law enforcement, private security, technology teams, and international stakeholders to ensure the safety, resilience, and continuity of people, infrastructure, data, and operations.
** Position Details**
* *
* Reports to:

** Associate Managing Director
* *
* Location:

** Remote
* ** Position Type:
** On-Call
* ** FLSA Status:
** Non-Exempt
* ** Pay:
** Hourly
* ** Travel:
** Up to 25%
** Essential Job Functions
*** Leads the design and execution of a
** citywide, integrated security plan
** for a major international event, encompassing physical, cyber, operational, and intelligence domains
* Conducts
** threat, risk, and vulnerability assessments
** for venues, transportation, utilities, and critical infrastructure, and designs
** layered security controls
** aligned with international best practices
* Develops and oversees
** venue-specific CONOPS****,
** including crowd management, access control, perimeter security, emergency response, and rehearsals
* Serves as the
** primary security SME****,
** coordinating with local, national, and international agencies and ensuring alignment with host nation laws and global standards
* Integrates
** cybersecurity and technology security
** into event operations, securing critical systems and overseeing risk assessments, testing, and incident response readiness
* Defines and supports
** command-and-control structures****,
** advises leadership during incidents or crises, and leads post-incident reviews and remediation
* Ensures compliance with
** international security frameworks****,
** regulatory requirements, and event security approvals
* Leads, mentors, and enables multidisciplinary security teams; delivers training and embeds
** security-by-design
** across event planning and city operations
* Performs other duties as assigned
** Minimum

Job Requirements
*** Bachelor’s degree in Security Management, Cybersecurity, Criminal Justice, International Relations, or related field (or equivalent experience)
* 10–15+ years of senior security experience, including large-scale event, city, or critical infrastructure security
* Proven experience developing security plans for international, high-attendance, high-risk events
* Strong expertise in physical security, cyber security, crisis management, and threat intelligence
* Experience working with government, law enforcement, and international stakeholders
* Excellent executive communication and briefing skills
** Preferred

Job Requirements
*** Master’s degree in Security Studies, Homeland Security, or related discipline
* Certifications such as CISSP, CPP, PSP, CISM, GIAC, or equivalent
* Experience with Olympic-level, World Cup–scale, G20, or similar events
* Familiarity with public safety command frameworks (ICS, NIMS, Gold/Silver/Bronze)
* Multilingual capabilities and international work experience
** Job Description Disclaimer
** This position description incorporates the core responsibilities of the job. It recognizes that other related duties not specifically mentioned might also be performed, and that not all responsibilities may be carried out depending on operational needs.
** Commitment to Diversity
*** Witt O'Brien's is always looking for the most qualified and experienced professionals with a passion for public safety, emergency management, homeland security, disaster response, and continuity of operations.
* We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status,…
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