BRIAN NELSON
Humble
Summary
Highly experienced Security Screening Supervisor with over 12 years of federal service in aviation and transportation security. Proven leader in high-risk, high-volume environments with expertise in threat detection, regulatory compliance, and incident management. Adept at coordinating with federal, state, and local law enforcement to support investigations and maintain public safety. Holds an active Secret Security Clearance, TWIC card, and armed security license. Recognized for decisive leadership, operational excellence, and the ability to safeguard critical infrastructure and transportation hubs.
Overview
13
13
years of professional experience
Work History
Level III Commissioned Armed Security Officer
Atlas Glinn, LLC | MAST Solutions
Houston
11.2025 - Current
- Provide armed security services to protect people, property, and critical assets in diverse environments
- Conduct security operations for schools, churches, armored transport, sporting events, and high-profile venues
- Respond to emergencies, threats, and suspicious activity with professionalism and tactical awareness
- Enforce access control procedures and maintain a visible deterrent presence
- Utilize firearms safely and responsibly in accordance with Texas law and security protocols
Supervisory Transportation Security Officer (STSO)
Department of Homeland Security, TSA
Houston
07.2018 - 04.2026
- Lead, supervise, and mentor a team of 20+ security personnel in high-traffic transportation environments
- Oversee daily screening and checkpoint operations, ensuring strict compliance with federal security regulations
- Direct incident response efforts, making rapid decisions during security threats and emergency situations
- Coordinate with law enforcement agencies on criminal investigations, fugitive apprehensions, and threat mitigation
- Conduct interviews, verify immigration status, and prepare intelligence documentation including BOLO alerts
- Manage regulatory inspections, covert testing programs, and vulnerability assessments to strengthen security posture
- Serve as a key liaison to Federal Security Director (FSD) leadership on policy implementation and operational strategy
- Recognized for exceptional judgment, leadership, and mission-critical decision-making under pressure
Lead Transportation Security Officer (LTSO)
Department of Homeland Security, TSA
Houston
06.2017 - 07.2018
- Supervised checkpoint operations and optimized passenger flow in a high-volume airport environment
- Ensured compliance with TSA security protocols and operational procedures
- Resolved escalated passenger and staff issues while maintaining security integrity
- Served as acting supervisor, demonstrating leadership readiness and operational oversight
Transportation Security Officer (TSO)
Department of Homeland Security, TSA
Houston
08.2013 - 06.2017
- Conducted passenger and baggage screening using advanced detection technologies (X-ray, ETD, metal detectors)
- Performed physical screenings and inspections to identify prohibited items and potential threats
- Verified identification and travel documents to prevent fraud and unauthorized access
- Maintained high vigilance in detecting suspicious behavior and mitigating risks
Education
High School Diploma -
Temple High School
Temple, TXSkills
- Terminal, Checkpoint, Port & Transportation Security Operations
- Threat & Risk Assessment
- Access Control & Credential Verification
- Incident Response & Emergency Management
- Surveillance & Screening Technologies (X-Ray, ETD) & CCTV Monitoring
- Regulatory Compliance (TSA, DHS, TWIC, Maritime Security Awareness)
- Investigations & Case Documentation
- Law Enforcement Coordination
- Supervisory Leadership & Team Development
- Vulnerability Assessments & Covert Testing
- Crowd Control & Public Safety Enforcement
- Stakeholder Communication & Conflict Resolution
- Firearms safety
- Emergency management
- Surveillance techniques
- Situational awareness
- Attention to detail
- Decision making
- Stress management
- Public safety
- Radio communication
- Crime prevention
Certifications And Credentials
- Active Secret Security Clearance
- Transportation Worker Identification Credential (TWIC)
- Level III Commissioned Security Officer License (Texas – Armed)
- Concealed Carry License (Texas)
- Specialized TSA Training: X-Ray & Explosive Detection
- Travel Document Authentication
- Threat Recognition & Screening Procedures
Additional Qualifications
- Extensive experience protecting critical infrastructure and transportation systems
- Strong knowledge of federal security regulations and access control protocols
- Proven ability to operate effectively in high-pressure, high-visibility environments
- Excellent report writing, investigative, and communication skills
- Physically and mentally prepared for demanding security operations
Timeline
Level III Commissioned Armed Security Officer
Atlas Glinn, LLC | MAST Solutions
11.2025 - Current
Supervisory Transportation Security Officer (STSO)
Department of Homeland Security, TSA
07.2018 - 04.2026
Lead Transportation Security Officer (LTSO)
Department of Homeland Security, TSA
06.2017 - 07.2018
Transportation Security Officer (TSO)
Department of Homeland Security, TSA
08.2013 - 06.2017
High School Diploma -
Temple High School