Security Officer Job in Mascoutah, IL

Job title from Allied Universal: Security Officer - Third Shift

Source: Allied Universal job site (securitycareers-aus.icims.com). This job is posted on the company's own site; we last checked it on Oct 20, 2026.

See Mascoutah, IL on the map

License in Illinois

To work as a security guard in Illinois you need the Permanent Employee Registration Card (PERC), issued by the Illinois Department of Financial and Professional Regulation (IDFPR), Division of Professional Regulation (Private Detective, Private Alarm, Private Security, Fingerprint Vendor, and Locksmith Act of 2004, 225 ILCS 447).

Minimum age: 18.

Full Illinois license guide · Official state page

How the pay compares

This job pays USD 10.00 an hour more than the typical USD 19.50 an hour for security guard jobs in Illinois (323 jobs that list the pay).

Security guard pay by state

About Allied Universal here

Typical pay at Allied Universal in Illinois: USD 19.73 an hour (239 jobs that list the pay).

All Allied Universal jobs

Job description from Allied Universal

Overview

Allied Universal®, North America’s leading security and facility services company, offers rewarding careers that provide you a sense of purpose. While working in a dynamic, welcoming, and collaborative workplace, you will be part of a team that contributes to a culture that positively impacts the communities and customers we serve.

Job Description

As a Security Officer Clearance Required in Mascoutah, IL, you will serve and safeguard clients in a range of industries such as Aero/Defense, and more. As a Security Officer supporting a leading aerospace and defense location, you will monitor and patrol assigned areas, maintain a visible presence to help deter security-related incidents, support access control functions, and provide exceptional customer service and communication. You will contribute to a professional environment where Allied Universal’s agile, reliable, innovative, people-first, teamwork-driven, and integrity-focused values guide every interaction.

Position Type: Full Time

Pay Rate: $29.50 / Hour

Job Schedule:

DayTimeWed11:00 PM - 07:00 AMThur11:00 PM - 07:00 AMFri11:00 PM - 07:00 AMSat11:00 PM - 07:00 AMSun11:00 PM - 07:00 AM

What You'll Do:

  • Provide customer service to clients by carrying out security-related procedures, site-specific policies, and, when appropriate, emergency response activities at an aerospace and defense location.
  • Respond to incidents, alarms, and critical situations in a calm, professional, problem-solving manner, following established site protocols and notification procedures.
  • Conduct regular and random patrols of facilities, access points, restricted areas, parking areas, and perimeter locations to help identify unusual activity or conditions.
  • Monitor access to the location by verifying credentials, controlling entry and exit, and reporting unauthorized access attempts or policy violations.
  • Complete required activity reports, incident documentation, and shift communications in accordance with Allied Universal and site-specific requirements.

Minimum Requirements:

  • Possess an active DoD Secret Clearance.
  • Access control and badge experience is preferred.
  • A state, county, or city-issued security-related license is preferred.
  • Comfort using a computer or tablet is preferred.
  • Be at least 18 years of age for unarmed roles; 21+ years of age for armed roles.
  • Possess a high school diploma or equivalent.
  • As a condition of employment, applicants will be subject to a background investigation in accordance with all federal, state, and local laws.
  • Allied Universal will consider qualified applications with criminal histories in a manner consistent with applicable laws.
  • As a condition of employment, applicants will be subject to a drug screen to the extent permitted by law.
  • Licensing requirements are subject to state and/or local laws and regulations and may be required prior to employment.
  • A valid driver’s license will be required for driving positions only.

Why Join Us:

  • Smart Tools: Access to our exclusive technology to view and claim additional shifts to earn more.
  • Career Growth: Get paid training and access to career growth opportunities.
  • Financial and Health Benefits: Enjoy access to a retirement savings plan, plus medical, dental, vision, basic life and AD&D, and disability insurance.
  • Exclusive Perks: Enjoy discounts on top brands and services through our Perks Program.

Closing

Allied Universal® is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race/ethnicity, age, color, religion, sex, sexual orientation, gender identity, national origin, genetic information, disability, protected veteran status or relationship/association with a protected veteran, or any other basis or characteristic protected by law. For more information: www.aus.com.

If you have difficulty using the online system and require an alternate method to apply or require an accommodation, please contact our local Human Resources department. To find an office near you, please visit: www.aus.com/offices.

Requisition ID

2026-1701485

Apply on the Allied Universal site

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