Summary
Overview
Work History
Education
Skills
Certification
Timeline
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Mathias Siemer

Elgin,TX

Summary

Vigilant and highly trained Level 3 Commissioned Security Officer with over 2 years of experience providing armed security, incident response, and access control in diverse settings. Proven ability to deter threats, enforce regulations, and manage emergencies with professionalism, sound judgment, and clear communication. Skilled in operations management, team leadership, staff training, and the use of security management software (Therms, TrackTik). Certified in firearms and crisis management, with a strong commitment to safety, policy compliance, and continuous improvement.

Overview

4
4
years of professional experience
1
1
Certification

Work History

Operations Manager

Verintegra
03.2025 - Current
  • Provide direct support to field operations by addressing real-time issues and emergencies, including last-minute scheduling changes.
  • Coordinate daily security assignments and shift schedules using scheduling software to ensure continuous coverage.
  • Act as liaison between field staff, management, and clients to maintain smooth communication.
  • Conduct regular site visits to ensure quality service delivery, compliance with client expectations, and employee performance evaluations.
  • Deliver training programs for field staff during onboarding and ongoing development.
  • Maintain and update operational procedures and documentation.
  • Issue verbal warnings for performance-related issues and oversee corrective actions.
  • Track and maintain company vehicles, schedule maintenance, and ensure compliance with operational standards.
  • Manage company uniforms and equipment inventory.
  • Develop site-specific Post Orders and implement security management software (Tracktik, Therms) for client locations.
  • Configure and install on-site tracking systems (NFC tags, QR codes, GPS checkpoints).

Operations Support

Verintegra
06.2024 - 03.2025
  • Supported field operations by addressing real-time issues and emergencies.
  • Assisted in daily security assignment coordination and shift scheduling.
  • Maintained communication between field staff, management, and clients.
  • Conducted site visits for service quality and employee performance.
  • Delivered onboarding and ongoing training for field staff.
  • Updated operational procedures and documentation.
  • Issued verbal warnings for performance issues.
  • Tracked and maintained company vehicles, uniforms, and equipment.

Armed Security Officer

Verintegra
05.2023 - 06.2024
  • Provided armed security and access control for diverse environments.
  • Maintained professionalism and clear communication in high-pressure situations.
  • Responded to incidents and emergencies, enforcing regulations and maintaining safety.
  • Wrote detailed reports and communicated effectively with clients and management.
  • Certified in firearms, first aid, and crisis management.

Armed Security Officer

Divergent Security Solutions
03.2023 - 09.2023
  • Provided armed security and access control for diverse environments.
  • Maintained professionalism and clear communication in high-pressure situations.
  • Responded to incidents and emergencies, enforcing regulations and maintaining safety.
  • Wrote detailed reports and communicated effectively with clients and management.
  • Certified in firearms, first aid, and crisis management.

Seasonal Team Member/Head Farm Hand

Evergreen Farms Christmas Tree
09.2021 - 07.2024

Assisted with farm operations and customer service during the holiday season.

Education

General Educational Development (GED) -

05.2022

Skills

  • Security Management Software: Therms, TrackTik
  • Emergency Response & Incident Management
  • Security Operations, Armed Security & Use-of-Force Protocols
  • Risk Assessment & Situational Awareness
  • Conflict Resolution & De-escalation
  • Team Leadership, Training & Supervision
  • Policy, Legal Compliance & Report Writing
  • Farm Operations & Animal Care
  • Craftsmanship & Hands-on Problem Solving
  • Basic Computer Skills
  • Adaptability & Quick Learning
  • Communication & Interpersonal Skills
  • Project & Time Management
  • Physical Fitness & Strong Work Ethic

Certification

  • Texas Level 3 Commissioned Security Officer License – State of Texas, 2027
  • Firearms Certification (Texas DPS)
  • FEMA Incident Command System: ICS-100, ICS-200
  • FEMA National Incident Management System: IS-700, IS-800

Timeline

Operations Manager

Verintegra
03.2025 - Current

Operations Support

Verintegra
06.2024 - 03.2025

Armed Security Officer

Verintegra
05.2023 - 06.2024

Armed Security Officer

Divergent Security Solutions
03.2023 - 09.2023

Seasonal Team Member/Head Farm Hand

Evergreen Farms Christmas Tree
09.2021 - 07.2024

General Educational Development (GED) -