Security Supervisor
Marksman Security LLC —Troy, MO
- $18.50 - $21.00 an hour
- Computer literacy
- Writing skills
- Mid-level
- Paid training
- Disability insurance
Quick Apply
3d
Surveillance Security Officer
GardaWorld Security Services U.S. —Labadie, MO
- $18.54 an hour
- Part-time
- Background check
- Military
- Writing skills
- Paid holidays
- Disability insurance
Quick Apply
2d
Part-Time Retail Security Officer
Andy Frain Services —Chesterfield, MO
- $18.54 an hour
- Part-time
- Pass drug screening
- High school diploma or GED
- 21 years or older
- Employee assistance program
- Employee discount
Quick Apply
Security Officer
Marksman Security LLC —Troy, MO
- $18.50 an hour
- Ability to walk for extended periods
- Computer literacy
- Office
- Paid training
- Disability insurance
Quick Apply
3d
Campus Security Officer
Francis Howell School District —O'Fallon, MO
- $17.04 - $20.87 an hour
- Nights as needed
- School experience
- High school diploma or GED
- Public school
- Paid holidays
- Disability insurance
Security Specialist
FedEx —Berkeley, MO
- $35.49 - $44.37 an hour
- Full-time
- Mid-level
- 3 years
- Communication skills
- Flexible schedule
4d
Division Protective Services Specialist (St. Louis)
QuikTrip —Saint Charles, MO
- $32.55 - $38.58 an hour
- Background check
- 18 years or older
- CPR Certification
Concierge Security - Security Agent
GardaWorld Security Services U.S. —Saint Peters, MO
- $19 an hour
- Part-time
- Background check
- Military
- Computer literacy
- Paid holidays
- Disability insurance
Quick Apply
Security Alarm Dispatcher - Training Provided - 7:30 am- 6pm (8hr or 10hr shifts)
Interface Security Systems LLC —St. Louis, MO
- From $22 an hour
- 8 hour shift
- Background check
- Pass drug screening
- Mid-level
- Benefits from day one
- Flexible schedule
Quick Apply
Security Officer - Mid Shift
TRUE MANUFACTURING GROUP —O'Fallon, MO
- $20.50 - $25.50 an hour
- Overtime
- Background check
- Microsoft Outlook
- Military
- Health savings account
- Health insurance
Security Officer - Armed
St. Luke's Hospital - MO —Chesterfield, MO
- High school diploma or GED
- Operating room
- Entry level
- Health savings account
- 401(k)
Security Officer
SSM Health —Lake Saint Louis, MO
- Part-time
- Background check
- Hospital
- Pass drug screening
- Paid parental leave
- Health insurance
Security Guard (Nights)
Wentzville School District —Wentzville, MO
- $15.49 an hour
- Entry level
- Health insurance
- Dental insurance
Security Guard (Day) (Parking Lot) (East High School)
Fort Zumwalt School District —Saint Peters, MO
- $15 an hour
- Full-time
- High school
- Ability to lift 50 pounds
- Children
5d
Alarm Monitoring Dispatcher 5:00a-3:30p - Training Provided!
Interface Security Systems LLC —St. Louis, MO
- From $22 an hour
- 8 hour shift
- Background check
- Pass drug screening
- Mid-level
- Benefits from day one
- Flexible schedule
Quick Apply
2d
Senior Security Officer
Principia The —St. Louis, MO
- $24.15 - $28.09 an hour
- Full-time
- School experience
- Microsoft Outlook
- Military
- 403(b) matching
- Relocation assistance
Security Alarm Dispatcher - Training Provided- 2:30pm-12am
Interface Security Systems LLC —St. Louis, MO
- From $22 an hour
- 8 hour shift
- Background check
- Pass drug screening
- Office
- Benefits from day one
- Flexible schedule
Quick Apply
Senior Physical Security Administrator
Mastercard —O'Fallon, MO
- $48,000 - $74,000 a year
- Online Application
- Military
- High school diploma or GED
- Driver's License
- Paid jury duty
- Health savings account
Unarmed Security Officer - Full Time
Prosegur —Saint Charles, MO
- $20 an hour
- Full-time
- Clean driving record
- Computer literacy
- Pass drug screening
Quick Apply
Security Officer
St. Luke's Hospital - MO —Chesterfield, MO
- Full-time
- Hospital
- High school diploma or GED
- Team management
Quick Apply
11d

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security officer jobs near o'fallon, mo

Security Supervisor

Marksman Security LLC -
Troy, MO

Quick Apply

Job Details

$18.50 - $21.00 an hour
3 days ago

Benefits

Paid training
Disability insurance
Health insurance
Dental insurance
401(k)
Paid time off
On-the-job training
Employee assistance program
Vision insurance
Opportunities for advancement
Life insurance
Pet insurance

Qualifications

Computer operation
Staff supervision
Report writing
Team supervision
Writing skills
High school diploma or GED
Typing
Productivity software

Full Job Description

Marksman Security is built on serving our clients and building careers – just like yours. We are trusted by some of the most well-known companies and properties in the country while remaining dedicated to building personalized security solutions that solve the needs of every customer we support. Named as a nationally recognized Top Workplace in 2024 and 2025 by USA Today, Marksman's customized approach to security services will provide you with the opportunity to learn, grow and succeed. Our core values of being Unified, Transparent, Innovative, Committed and Accountable help us in providing unparalleled service and support in all that we do. If you are looking for a meaningful career, a culture of excellence, and the ability to make a difference, we want to talk to you!

Marksman Security Now is Hiring Troy, MO

NOW HIRING: WEEKEND SERGEANT

Lead. Protect. Excel.

Are you a security professional with sharp decision-making skills and a passion for keeping operations running smoothly? We are seeking a reliable and motivated Shift Supervisor to support daily operations at Toyota in Troy, Missouri. This role is responsible for leading a team, ensuring operational efficiency, maintaining accountability, and delivering high-quality reporting and communication across shifts.

What You Bring:

Experience in security operations, law enforcement, or crisis management
Leadership skills – ability to make quick, high-stakes decisions
Tech-savvy – Familiarity with surveillance, access control, and reporting tools
Clear communication – Ability to coordinate with teams and stakeholders
Calm under pressure – Think fast, act smart, and keep operations seamless

Why Join Us?

Competitive Pay & Benefits

Fast-Paced & Dynamic Work Environment

Growth & Advancement Opportunities

Be at the Forefront of Global Security

Ready to step up? Apply today and become a key player in our security mission!

Key Responsibilities

Supervise and lead shift personnel to meet operational goals and performance standards.
Demonstrate strong decision-making skills in fast-paced and dynamic
Maintain accountability for team performance, attendance, and
Review, approve, and submit detailed reports with accuracy and
Ensure all documentation is complete, timely, and aligned with company expectations.
Communicate effectively with leadership, peers, and team
Identify and address performance issues, providing coaching when
Support continuous improvement and operational excellence

Job Duties:

Team Leadership & Supervision:

Supervise Officers – Manage, train, and provide guidance to shift personnel to ensure efficient operations.

Schedule & Assign Tasks – Oversee shift scheduling, workload distribution, and task assignments to maintain security coverage.

Quality Control – Ensure all reports, logs, and security responses meet organizational standards.

Communication & Coordination – Serve as a key point of contact between the Officers, internal departments, law enforcement, emergency responders, and contract security management/security management.

Technology & Process Improvement:

Process Optimization – Continuously improve security protocols, response strategies, and risk mitigation procedures.

Training & Drills – Conduct Officer training, security awareness training, emergency drills, and simulation exercises to prepare staff for real-world scenarios.

Knowledge of risk assessment, crisis management, and emergency response

Experience:

1–3 years of experience in security operations, law enforcement communications center, emergency response, or a related field.

Required Skills & Qualifications

Proven ability to make sound, timely decisions.
Strong sense of personal and team accountability.
Experience writing and approving detailed reports.
Proficiency in using
- Microsoft Office Suite
- Security software
- Reporting tools.
Minimum typing proficiency (words per minute requirement preferred).
- Ability to type 55-65 WPM
Strong organizational and time management
Ability to lead, motivate, and manage a team
Must be at least 21 years of age or older
High school degree or equivalent
Valid state licensing
Professional demeanor and appearance
Basic computer skills
Must be able to multitask and prioritize assigned tasks
Strong communication skills (verbal and written)
Minimum of one year of security experience
Must be able to pass pre-employment screening (background and drug)
This position will require occasional crawling, crouching, climbing of stairs, kneeling, running, sitting, standing, stooping and walking for extended periods of time

Preferred Qualifications

Experience in a corporate or operations-driven environment.
Familiarity with reporting, access control, camera systems, and documentation standards.

Saturday - Wednesday 1:00pm - 9:00pm
Thursday & Friday OFF

$18.50 / $21.00 per Hour
(dual role - $21.00/hr while working in Seargeant capacity)

Benefits:

401 (k)
Insurance: medical, vision, and dental
Short-term disability
Critical care/Hospital Indemnity
Complimentary life insurance
Pet insurance
Legal assistance/guidance
Identity theft protection
Paid on-the-job training
Paid time off
Bi-Weekly Pay
Competitive compensation
Career advancement opportunities
Continuous learning opportunities through LMS
Employee assistance program (EAP)
Employee recognition events
Employee performance incentives/rewards

If you want a team that invests in you, show us you're ready to invest in it.

Marksman Security LLC · Equal Opportunity Employer M/F/D/V

#IND2

Quick Apply

Refine Your Search

security officer jobs in o'fallon, mo

Security Supervisor

Surveillance Security Officer

Part-Time Retail Security Officer

Security Officer

Campus Security Officer

Security Specialist

Division Protective Services Specialist (St. Louis)

Concierge Security - Security Agent

Security Alarm Dispatcher - Training Provided - 7:30 am- 6pm (8hr or 10hr shifts)

Security Officer - Mid Shift

Security Officer - Armed

Security Officer

Security Guard (Nights)

Security Guard (Day) (Parking Lot) (East High School)

Alarm Monitoring Dispatcher 5:00a-3:30p - Training Provided!

Senior Security Officer

Security Alarm Dispatcher - Training Provided- 2:30pm-12am

Senior Physical Security Administrator

Unarmed Security Officer - Full Time

Security Officer

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