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Code 3 Security Jobs in Missouri (NOW HIRING)

Catawiki

Conduct secure code reviews, threat modeling, and security assessments for new features ... You bring 3+ years of hands-on security engineering experience , ideally in a cloud-based or high ...

Walmart

(USA) Software Engineer III

Cassville, MO · On-site

$90K - $180K/yr

The (USA) Software Engineer III plays a critical role in designing, developing, and delivering ... Ensure adherence to security policies and coding standards throughout development. What you'll ...

Walmart

(USA) Software Engineer III

Noel, MO

$90K - $180K/yr

The (USA) Software Engineer III plays a critical role in designing, developing, and delivering ... Ensure adherence to security policies and coding standards throughout development. What you'll ...

Walmart

(USA) Software Engineer III

Anderson, MO · On-site

$90K - $180K/yr

The (USA) Software Engineer III plays a critical role in designing, developing, and delivering ... Ensure adherence to security policies and coding standards throughout development. What you'll ...

MICDS

Security Officer

Saint Louis, MO

$15.50 - $18.50/hr

... 3% contribution; medical, dental and vision insurance; flexible spending accounts and long term ... Remains alert for unauthorized individuals and/or security code violators. Approach suspicious ...

caleres

Security Engineer

Saint Louis, MO · On-site

Relaxed Dress Code: At Caleres, we believe that the right shoes can take you anywhere, and your ... Bachelor's degree in Information Systems and 3 years' experience; Or 5+ years in IT Security field ...

MICDS

Security Officer

Saint Louis, MO · On-site

$15 - $17.75/hr

... 3% contribution; medical, dental and vision insurance; flexible spending accounts and long term ... Remains alert for unauthorized individuals and/or security code violators. Approach suspicious ...

Cyera

Security Engineer

Kansas City, MO · On-site +1

$80K - $150K/yr

The ideal candidate has 2-3 years of cybersecurity experience, a strong SOC foundation, hands-on ... Infrastructure as Code: Familiarity with Terraform, CloudFormation, CDK, or similar tools.

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All JobsCode 3 Security JobsCode 3 Security Jobs in Missouri

Code 3 Security information

See Missouri salary details

$10

$17

$23

How much do code 3 security jobs pay per hour?

As of Jun 22, 2026, the average hourly pay for code 3 security in Missouri is $17.85, according to ZipRecruiter salary data. Most workers in this role earn between $14.42 and $17.60 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Code 3 Security Officer, and why are they important?

To thrive as a Code 3 Security Officer, you generally need a high school diploma or GED, strong observational skills, and relevant security certifications or licenses. Familiarity with security systems, surveillance equipment, and incident reporting tools is typically required. Excellent communication, situational awareness, and the ability to remain calm under pressure are standout soft skills in this role. These skills ensure the safety of people and property, effective response to emergencies, and strong client trust in security operations.

What can a level 3 security guard do?

A Level 3 security guard is typically authorized to perform patrols, monitor security systems, and respond to incidents within their scope of training and certification. They may also have the authority to make arrests, enforce rules, and handle access control at various sites, often requiring specialized training and licensing. Their responsibilities are more advanced than lower levels, reflecting increased authority and skills.

What is the difference between Code 3 Security vs Security Guard?

AspectCode 3 SecuritySecurity Guard
Required CertificationsSecurity license, CPR/First AidSecurity license, CPR/First Aid
Work EnvironmentEvent security, private properties, corporate settingsCommercial, residential, event venues
Employer & Industry UsageSecurity companies, private clientsSecurity firms, private and public sectors

Both Code 3 Security and Security Guard roles require similar certifications and often operate in comparable environments. However, Code 3 Security typically refers to a specific security service level or company name, while Security Guard is a general job title. Understanding these distinctions helps job seekers find the right opportunities in the security industry.

What is code 3 security?

Code 3 security refers to responding to emergency situations with lights and sirens activated, indicating an urgent response. Security personnel may use Code 3 during emergencies such as threats or incidents requiring immediate attention, often following specific protocols and requiring proper training and certification.

What are some common challenges faced by security officers at Code 3 Security, and how can they be managed effectively?

Security officers at Code 3 Security often encounter challenges such as handling difficult or confrontational individuals, adapting to varying shift schedules, and staying vigilant during long periods of surveillance. To manage these effectively, officers receive training in conflict resolution, clear communication, and situational awareness. Additionally, teamwork and regular briefings help ensure everyone is informed about ongoing concerns and protocols, fostering a supportive work environment where officers can rely on each other for backup when needed.

What job makes $10,000 a month without a degree?

In security-related roles, positions such as private security consultants or cybersecurity specialists can earn $10,000 or more per month, especially with specialized skills, certifications, and experience. These jobs often require technical knowledge, problem-solving abilities, and sometimes industry-specific certifications but not necessarily a college degree.

What jobs pay 2000 a day?

High-paying security roles such as specialized executive protection or security consultants can earn up to $2,000 per day, especially with extensive experience, certifications, and working in high-risk environments. These positions often require advanced skills, security clearances, and the ability to operate in demanding situations.
What are popular job titles related to Code 3 Security jobs in Missouri? For Code 3 Security jobs in Missouri, the most frequently searched job titles are:
What job categories do people searching Code 3 Security jobs in Missouri look for? The top searched job categories for Code 3 Security jobs in Missouri are:
Code 3 Security jobs near you
Infographic showing various Code 3 Security job openings in Missouri as of June 2026, with employment types broken down into 77% Full Time, 20% Part Time, and 3% Contract. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution, with an average salary of $37,136 per year, or $17.9 per hour.
Lead Software Engineer/ Java Architect : O'Fallon, Missouri (Main Campus) - Onsite role

Lead Software Engineer/ Java Architect : O'Fallon, Missouri (Main Campus) - Onsite role

Marvel Technologies Inc

O Fallon, MO • On-site

Contractor

Posted 21 days ago

Job description

Lead Software Engineer/Architect
Location: O'Fallon, Missouri (Main Campus) – Onsite role
Duration: 24 Months
 
Top three skills:
1.Have skills in building applications using open frameworks to achieve reuse and reduce development times for both frontend and 
backend (e.g., Java, Spring Boot, Vue.js, Angular, React, others)
2. Understand use cases for advanced design patterns (e.g., service-to-worker, MVC, API gateway, intercepting filter, dependency injection, lazy loading, all from the gang of four) to implement efficient code
3. Have skills in designing and documenting highly available and performant microservice architectures. Understands system architecture to plan for platform and infrastructure capacity (e.g., database, compute, network, storage) and drives the dependency prioritization to reduce the delivery lead time
Role
 
As a Lead Software Engineer / Architect, you will:
- Create architectural designs for applications, ensuring they meet business requirements and are scalable.
- Write code to build and enhance applications/services and promote code-reviews, code scanning, and other standard development practices to deliver high-quality artifacts to production.
- Drive prioritization decisions and trade-offs in working with product partners
- Introduce new technologies and architecture by following enterprise guidelines
- Provide development and architecture guidance to team members
- Implement security best practices to protect applications from vulnerabilities.
You should apply if you:
- Have skills in building applications using open frameworks to achieve reuse and reduce development times for both frontend and backend (e.g., Spring Boot, Vue.js, Angular, React, others)
- Understand use cases for advanced design patterns (e.g., service-to-worker, MVC, API gateway, intercepting filter, dependency injection, lazy loading, all from the gang of four) to implement efficient code
- Have skills in designing and documenting highly available and performant microservice architectures
- Have skills to undertake a technical review of code across applications and their dependencies to look for anti-patterns and promote continuous refactoring
- Understand and elaborate technical debt and operational issues to drive prioritization discussions with stakeholders to improve the run experience
- Understands system architecture to plan for platform and infrastructure capacity (e.g., database, compute, network, storage) and drives the dependency prioritization to reduce the delivery lead time
- Have excellent written and communication skills.