Top 17 network security engineer Jobs in springfield, il

DCO Counter-Measures Engineer
Leidos —Illinois
- $107,900 - $195,050 a year
- Full-time
- Hybrid work
- System design
- Windows
- Java
Electrical Controls Engineer - Power
Hanson Professional Services Inc. —Springfield, IL
- $105,000 - $160,000 a year
- Full-time
- 5 years
- Driver's License
- Travel
- Health insurance
- 401(k) matching
Quick Apply
Network Architect
Distro —Springfield, IL
- $90 - $100 an hour
- Full-time
- Hybrid work
- Senior level
Quick Apply
AI Solutions Engineer
Baker Tilly Advisory Group, LP —Springfield, IL
- $123,840 - $234,770 a year
- Full-time
- Computer Science
- 5 years
- System design
Quick Apply
2d
Senior Manager Continuous Improvement
Ryder System —Springfield, IL
- $130,000 - $145,000 a year
- Urgently hiring
- Remote
- Dry van
- Master's degree
- SQL
- Paid parental leave
- Paid holidays
Principal Application Security Engineer - Threat Research
CVS Health —Springfield, IL
- $144,200 - $288,400 a year
- Full-time
- Azure
- System design
- HIPAA
- Health insurance
- Dental insurance
4h
TOPS PMT Trainee Program (Junior Platform Developer) (USSP)
Krasan Consulting Services Inc —Springfield, IL
- $55 an hour
- DevOps
- Mid-level
- 3 years
Quick Apply
Senior Software Architect
Crowe —Springfield, IL
- $129,500 - $325,500 a year
- Full-time
- Remote
- Computer science
- Computer Science
- 11+ years
Quick Apply
Microsoft Dynamics 365 Business Applications - Client-Facing Senior Technical Architect
Crowe —Springfield, IL
- $142,900 - $301,300 a year
- Full-time
- DevOps
- Bachelor's degree
- Mentoring
Quick Apply
9d
Warehouse Sr. Industrial Engineer - Start-ups (remote)
Ryder System —Springfield, IL
- $95,000 - $110,000 a year
- Engineering
- Dry van
- 3 years
- Disability insurance
- Health insurance
6d
Lead IT Systems Engineer
eResources LLC —United States
- $90,000 - $95,000 a year
- Full-time
- Background check
- Computer Science
- System design
- Health insurance
- Dental insurance
Quick Apply
Application Security Engineer
H.W. Kaufman Group —United States
- Full-time
- Remote
- 5 years
- Salesforce
- Analysis skills
Sr. Network Architect (RouterOS req; Paid Relo - North CA; $200K)
#twiceasnice Recruiting —United States
- $175,000 - $200,000 a year
- Full-time
- Travel
- Mentoring
- US work authorization
- Relocation assistance
- Health insurance
Quick Apply
7d

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network security engineer jobs near springfield, il

DCO Counter-Measures Engineer

Leidos -
Illinois

Apply Now

Job Details

Full-time
$107,900 - $195,050 a year

Qualifications

Linux support
IP networking
Linux administration

Full Job Description

Description

Leidos' Digital Modernization sector has a current job opportunity for a Defensive Cyber Operations (DCO) Counter-Measures Engineer.

This position will support the GSM-O II program, which provides network operations and cyber defense support to the Defense Information Systems Agency (DISA) in support of the DoD and COCOMs. The selected candidate will provide support for defensive cyber operations activities and will be expected to actively engage with a variety of customers and mission partners.

This position can be based out of any of our three core sites - Scott AFB, IL; Hill AFB, UT; or Columbus, OH. Partial/hybrid telework may be allowed, but a consistent on-site presence is required.

PRIMARY RESPONSIBILITIES:

Author and deploy novel countermeasures to eliminate threats and illuminate their activities.
Assess the effectiveness of countermeasures on an ongoing basis and revector actions as needed.
Design and develop solutions to deliver automated cybersecurity services, conduct agile development & maintenance of automation script/tools to scale cybersecurity work across the enterprise.
Develop custom integrations, data correlation, and processing strategies to reduce cybersecurity risk and act as a Subject Matter Expert for the automation team.
Maintain situational awareness of cyber activity by reviewing DoD, Intelligence Community and open-source reporting for new vulnerabilities, malware or other threats that have the potential to impact the DoDIN.

BASIC QUALIFICATIONS:

Must have an active DoD Secret clearance and be eligible to obtain TS/SCI
Bachelor's degree in a related discipline with 8+ years of applicable experience; additional related years of experience is accepted in lieu of a degree.
Requires 8140 Cyber Defense Infrastructure Support Specialist 521 (CS) Intermediate-level compliance, to include one of the following certifications: Security+, PenTest+, CySA+, GSEC, or GMON.
Proficiency in programming in at least one modern language (Java, Python, Ruby, C++).
Custom malware detection development experience.
Advance understanding of TCP/IP, networking ports and protocols, traffic flow, system administration, OSI model, defense-in-depth and common security elements.
Understand the life cycle of network threats, attacks, attack vectors and methods of exploitation with an understanding of intrusion set tactics, techniques and procedures (TTPs).
UNIX Administrative skills.

PREFERRED SKILLS:

Experience with DISA and DoD Networks.
Experience countering APTs or emergent threats to DOD networks.
Skilled in developing extended cyber security analytics.
Experience in developing and supporting a development environment.
Experience automating tasks via Bash, Python, PowerShell, or other scripting tools.
Experience in Linux and Windows-based systems administration in a cloud or virtualized environment.
Experience with API development and integration.
Experience with Git, Sigma, Yara, Snort, and Suricata.
Experience with Detection-as-a-Code Principles.
Experience with malware analysis concepts and methods.
Advanced Certifications such as GREM, OSCP, CISSP or CASP.

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

Original Posting:

May 12, 2026

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:

Pay Range $107,900.00 - $195,050.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

About Leidos

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com.

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at www.leidos.com/careers/pay-benefits.

Securing Your Data

Beware of fake employment opportunities using Leidos’ name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system – never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at [email protected].

If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the U.S. Federal Trade Commission.

Commitment to Non-Discrimination

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.

Apply Now

Refine Your Search

network security engineer jobs in springfield, il

DCO Counter-Measures Engineer

Electrical Controls Engineer - Power

Network Architect

AI Solutions Engineer

Senior Manager Continuous Improvement

Principal Application Security Engineer - Threat Research

TOPS PMT Trainee Program (Junior Platform Developer) (USSP)

Senior Software Architect

Microsoft Dynamics 365 Business Applications - Client-Facing Senior Technical Architect

Warehouse Sr. Industrial Engineer - Start-ups (remote)

Lead IT Systems Engineer

Application Security Engineer

Sr. Network Architect (RouterOS req; Paid Relo - North CA; $200K)

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