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Mid Level Cyber Security Jobs in O Fallon, IL (NOW HIRING)

Parsons

Policy Analyst - Mid Level

Saint Louis, MO · On-site

$74K - $130K/yr

ThePolicy Analyst- Mid,advises,assists, leads, manages, and works all policy development, review ... Support the organization's Cybersecurity Strategy. * Analyze internal documents and external ...

DLS Engineering

Mid-level Software Engineer

Saint Louis, MO · On-site

$100K - $105K/yr

Mid-level Software Engineer at DLS Engineering (on-site) DLS Engineering is seeking a Mid-level ... Cybersecurity, or equivalent technical degree and a minimum of 2 years of experience in full stack ...

Tulk LLC

Policy Analyst Mid

Saint Louis, MO · On-site

Policy Analyst Mid TULK is a boutique strategic technology and management consulting firm ... Demonstrated understanding of NIST 800-53 controls, cybersecurity frameworks, and high-level ...

Parsons

Business Analyst - Mid Level

Saint Louis, MO · On-site

$103K - $181K/yr

The Business Analysis - Mid, is a subject matter expert and program leader responsible for ... IT and Cybersecurity strategy, Enterprise Architecture, Risk Management, or Test, Training ...

Panasonic

Cybersecurity Architect

Bridgeton, MO · On-site

... level. * Decision Making: Able to interpret root-cause problems and propose relevant solutions ... Able to lead mid-sized projects with guidance from leadership. Able to drive alignment between ...

Leidos

Defensive Cybersecurity Analyst

Shiloh, IL · On-site

Mid Shift: 12:00 AM - 8:00 AM * Flexibility: We highly value your work-life balance and make every ... Current DoD 8570 IAT Level II (or higher) certification, such as CompTIA Security+ CE, ISC2 SSCP ...

Leidos

Defensive Cybersecurity Analyst

Shiloh, IL · On-site

Mid Shift: 12:00 AM - 8:00 AM * Flexibility: We highly value your work-life balance and make every ... Current DoD 8570 IAT Level II (or higher) certification, such as CompTIA Security+ CE, ISC2 SSCP ...

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All JobsMid Level Cyber Security JobsMid Level Cyber Security Jobs in O'Fallon, IL

Mid Level Cyber Security information

See O Fallon, IL salary details

$37.8K

$114.6K

$167.9K

How much do mid level cyber security jobs pay per year?

As of Sep 2, 2026, the average yearly pay for mid level cyber security in O'Fallon, IL is $114,632.00, according to ZipRecruiter salary data. Most workers in this role earn between $95,100.00 and $132,500.00 per year, depending on experience, location, and employer.

What is a mid level cyber security professional?

A Mid Level Cyber Security job involves protecting an organization's systems, networks, and data from cyber threats. Professionals in this role typically have a few years of experience and are responsible for tasks like threat detection, vulnerability assessments, incident response, and security policy implementation. They work with security tools such as firewalls, intrusion detection systems, and SIEM solutions. Additionally, they may collaborate with teams to ensure best security practices and compliance with industry standards.

What does a mid level cyber security professional do?

Mid Level Cyber Security professionals typically spend their days monitoring network security, analyzing potential threats or vulnerabilities, and responding to security incidents. They may also conduct regular security assessments, update or configure security tools, and contribute to the development of security policies or procedures. Collaboration with IT teams, business units, and sometimes external vendors is common, especially when coordinating responses to threats or implementing new security measures. This role often requires balancing proactive defense measures with prompt reaction to new and emerging threats.

What are the key skills and qualifications needed to thrive in the mid level cyber security position?

To excel as a Mid Level Cyber Security professional, you need a solid grasp of network security, threat analysis, incident response, and vulnerability assessment, often supported by a bachelor's degree in computer science or related field. Familiarity with tools like SIEM platforms, firewalls, IDS/IPS systems, and industry certifications such as CompTIA Security+, CISSP, or CEH are common requirements. Strong problem-solving abilities, attention to detail, and effective communication help professionals collaborate with IT teams and convey security risks clearly. These skills are critical for identifying and mitigating threats, ensuring compliance, and maintaining robust organizational security.

What are the most commonly searched types of Cyber Security jobs in O'Fallon, IL?

The most popular types of Cyber Security jobs in O'Fallon, IL are:

What job categories do people searching Mid Level Cyber Security jobs in O'Fallon, IL look for?

The top searched job categories for Mid Level Cyber Security jobs in O'Fallon, IL are:

What cities near O'Fallon, IL are hiring for Mid Level Cyber Security jobs?

Cities near O'Fallon, IL with the most Mid Level Cyber Security job openings:

Mid Level Cyber Security jobs near you
Infographic showing various Mid Level Cyber Security job openings in O'Fallon, IL as of August 2026, with employment types broken down into 74% Full Time, and 26% Part Time. Highlights an 100% In-person job distribution, with an average salary of $114,632 per year, or $55.1 per hour.

Mid-Level Cyber Security Engineer 112-163

IC-CAP LLC

Saint Louis, MO • On-site

Full-time

Re-posted 20 days ago

Job description

Mid-Level Cyber Security Engineer support the refinement of information security requirements and ensure that the requirements are integrated into information technology component products and information systems through purposeful security architecting, design, development, and configuration.
Duties include:
  • Supports development teams working to design and develop information systems or upgrade legacy systems.
  • Supports product research and support Analysis of Alternative (AoA) activities that independently identify the most appropriate security solutions.
  • Develops system concepts, contribute to the capability phase of the systems development lifecycle, and translate technology and environmental conditions (e.g., law and regulation) into system security designs and processes.
  • Supports development and documentation of Security Architectures, Roadmaps, and investments.
  • Responsible for assisting with managing all security requirements including NGA documentation and processes.
  • Ensures system security compliance and requirements are met.

Education and Experience
Required:
  • 6-12 years of experience.
  • Bachelors degree or higher in Engineering, Computer Science, Information Technology, Management Information Systems, or related STEM degree program, or 4 years of equivalent Additional Mid Level work experience as a Cyber Security Engineer.
  • Mid-level working experience in government or industry within Cyber Security Engineering.

Desired
  • DoD 8570 Level II (IASAE) certification compliance
  • Mid-level working experience in government or industry supporting enterprise-level cyber security efforts involving architecting, designing, development, and configuration of cloud and on premise based systems and software
  • Familiarity with security requirements, including NGA documentation and processes.
  • Understanding and experience implementing of ICD-503.

Training:
  • DoD 8570 Level I (IASAE) certification

Security Clearance:
  • Active TS/SCI Clearance and the willingness to sit for a CI polygraph, if needed

IC-CAP provides equal employment opportunities (EEO) to all applicants for employment without regard to race, color, religion, gender, sexual orientation, gender identity or expression, national origin, age, disability, genetic information, marital status.

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