Network Security Engineer Jobs in O Fallon, IL

1-15 of 17 Jobs

Lead Security Technician (un)

  • Saint Louis, MO (15 miles from O Fallon, IL)
  • 4 days ago
  • Saint Louis, MO (15 miles from O Fallon, IL)
  • 4 days ago

Unleash your potential with the Johnson Controls team! As a global leader in smart, healthy, and sustainable buildings, our mission is to reimagine the performance of buildings to serve people,...

Senior Endpoint Security Engineer NEW

  • Saint Louis, MO (15 miles from O Fallon, IL)
  • 9 days ago
  • Saint Louis, MO (15 miles from O Fallon, IL)
  • 9 days ago

Senior Endpoint Security Engineer D2 Consulting Yesterday Top Secret/SCI Unspecified Polygraph IT - Security Saint Louis, MO (ON-SITE/OFFICE) **ACTIVE TS/SCI SECURITY CLEARANCE REQUIRED** Are you...

Security Architect

  • Saint Louis, MO (15 miles from O Fallon, IL)
  • 10 days ago
  • Saint Louis, MO (15 miles from O Fallon, IL)
  • 10 days ago

Why Join Us? As the world's leading vendor of Cyber Security, facing the most sophisticated threats and attacks, we've assembled a global team of the most driven, creative, and innovative people....

Senior Global Cybersecurity Engineer - Operational Technology

  • Saint Louis, MO (15 miles from O Fallon, IL)
  • 17 days ago
  • Saint Louis, MO (15 miles from O Fallon, IL)
  • 17 days ago

OT Vulnerability Management Lead the OT vulnerability management lifecycle, including asset discovery, vulnerability identification, risk evaluation, and remediation tracking....

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Senior Network Security Engineer

  • Saint Louis, MO (15 miles from O Fallon, IL)
  • 18 days ago
  • Saint Louis, MO (15 miles from O Fallon, IL)
  • 18 days ago

Strong expertise in Cloud networking and security: Demonstrated ability to manage and configure cloud policies, network security groups (NSGs), and virtual networks....

Remote Work

Zero Trust Cybersecurity Engineer

  • Belleville, IL (10 miles from O Fallon, IL)
  • 24 days ago
  • Belleville, IL (10 miles from O Fallon, IL)
  • 24 days ago

Hands on experience with common, enterprise grade network security & SIEM technologies (such as Zscaler, Palo Alto, Cisco, Juniper, Microsoft, Splunk, ELK etc.)....

Cyber Security Specialist

  • O Fallon, IL
  • 28 days ago
  • O Fallon, IL
  • 28 days ago

Cyber Security Specialist Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: Secret Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel:...

Cyber Security Engineer - SME

  • O Fallon, IL
  • 28 days ago
  • O Fallon, IL
  • 28 days ago

Cyber Security Engineer - SME Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: Secret Employee Type: Regular Percentage of Travel Required: Up to 10% Type of...

Cyber Security Specialist

  • Scott AFB, IL (5 miles from O Fallon, IL)
  • 29 days ago
  • Scott AFB, IL (5 miles from O Fallon, IL)
  • 29 days ago

Cyber Security SpecialistJob Category: EngineeringTime Type: Full timeMinimum Clearance Required to Start: SecretEmployee Type: RegularPercentage of Travel Required: Up to 10%Type of Travel:...

Cyber Security Engineer - SME

  • Scott AFB, IL (5 miles from O Fallon, IL)
  • 29 days ago
  • Scott AFB, IL (5 miles from O Fallon, IL)
  • 29 days ago

Cyber Security Engineer - SMEJob Category: EngineeringTime Type: Full timeMinimum Clearance Required to Start: SecretEmployee Type: RegularPercentage of Travel Required: Up to 10%Type of Travel:...

Cybersecurity Engineer

  • Saint Louis, MO (15 miles from O Fallon, IL)
  • 30+ days ago
  • Saint Louis, MO (15 miles from O Fallon, IL)
  • 30+ days ago

We begin with dreams. Dreams drive our motivation. Dreams are our future. The world's dreams, people's dreams, our dreams. Our passion creates ideas that make dreams come alive. Technology and...

Cyber Security Engineer

  • Saint Louis, MO (15 miles from O Fallon, IL)
  • 30+ days ago
  • Saint Louis, MO (15 miles from O Fallon, IL)
  • 30+ days ago

Cyber Security Engineer Peraton United States, Missouri, St. Louis Jun 09, 2025 Cyber Security Engineer Job Locations US-MO-St Louis Requisition ID 2025-154292 Position Category Engineering...

Security Engineer

  • Saint Louis, MO (15 miles from O Fallon, IL)
  • 30+ days ago
  • Saint Louis, MO (15 miles from O Fallon, IL)
  • 30+ days ago

Security Engineer Position overview The Network Security Engineer is responsible for managing, planning, and monitoring the security of the network....

Data Security Architect

  • Saint Louis, MO (15 miles from O Fallon, IL)
  • 90+ days ago
  • Saint Louis, MO (15 miles from O Fallon, IL)
  • 90+ days ago

Preferred Technologies: Cloud security platforms Data loss prevention Data encryption Identity and access management Network security Endpoint security Vulnerability management #LI-DL1 About Stifel...

Director, Senior Cloud Security Architect

  • Saint Louis, MO (15 miles from O Fallon, IL)
  • 90+ days ago
  • Saint Louis, MO (15 miles from O Fallon, IL)
  • 90+ days ago

engineering, system and network security, authentication and security protocols, cryptography, or application security Certifications such as Certified Information Systems Security Professional (CISSP...

Demographic Data for O Fallon, IL

Moving to O Fallon, IL? Find some basic demographic data about O Fallon, IL below.


Local
National
36,068
805
Medium

Network Security Engineer Online Courses and Training Opportunities

iHire curates thousands of courses in order to recommend the best ones to help further your career. If you register for a course using the links on our site, we may receive a small commission.
Network Security
Learn the process of network security, including intrusion detection, evidence collection, network auditing, and contingency planning against attacks. In this course, you will examine the various...
Security Engineer Nanodegree Program
Youll master the foundational skills necessary to become a Security Engineer. This program will focus on how to protect a companys computer systems, networks, applications and infrastructure. Our...
Jump Start: Network Security
Welcome to Check Point Jump Start: Network Security This course will introduce Check Point's Network Security solution. During this course, you will learn how to configure, deploy, manage, and...

Salary for Network Security Engineer Jobs in O Fallon, IL

Estimated salary range based on data from US Bureau of Labor Statistics (BLS) and iHire research efforts.

Licensing / Certification

Required or preferred licenses and certifications for Network Security Engineer positions.



Highest Education Level

Network Security Engineers in O Fallon, IL offer the following education background
Bachelor's Degree
45.1%
Master's Degree
31.5%
Associate's Degree
10.0%
Vocational Degree or Certification
7.4%
High School or GED
3.0%
Doctorate Degree
2.2%
Some College
0.7%
Some High School
0.1%