Network Information Security Specialist

Leidos; Illinois; On-site; USD 85,000 - 154,000; Full time

Job summary

A leading company in defense contracting seeks a Network Information Security Specialist to support the Joint Worldwide Intelligence Communications System (JWICS) at Scott AFB, IL. This mid-senior level role involves configuring security systems, enforcing policies, and managing IT security strategies. Meticulous, self-directed candidates with a relevant technical degree and active DoD clearance are encouraged to apply. Competitive pay based on skills and experience.

Qualifications

• 4+ years related experience, 8+ years may substitute degree.
• Active DoD Top Secret Security Clearance.
• Experience in IA technologies.

Responsibilities

• Configure firewalls and network security assets.
• Manage cyber security strategies and compliance.
• Maintain system documentation and accreditation.

Skills

Configuration of Palo Alto firewalls

Information Assurance

Cyber Security

Linux

Windows

Education

Bachelor's degree in a relevant technical discipline

Tools

Cisco and Juniper firewalls

Nessus

nmap

Job description

Join to apply for the Network Information Security Specialist role at Leidos

3 days ago Be among the first 25 applicants

Join to apply for the Network Information Security Specialist role at Leidos

Get AI-powered advice on this job and more exclusive features.

This range is provided by Leidos. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.

Base pay range

$85,150.00/yr - $153,925.00/yr

Description

The Defense group at Leidos has a career opening for a Network Information Security Specialist on a DISA contract. This role is primarily on the customer site at Scott AFB, IL. Administrator will provide support for assigned systems supporting Joint Worldwide Intelligence Communications System (JWICS).

Primary Responsibilities

• Works independently to perform configuration of Palo Alto enclave firewalls and other Information Assurance Networking assets as needed.
• Perform required patching, STIGs, upgrades, and updates on IA related assets.
• Must manage and enforce security strategies and policies within established guidelines.
• Effectively manage IT Security Strategy, Cyber Security, and Compliance and Risk Management supporting IT Security and Compliance Teams
• Create and maintain system documentation and support accreditation activities.
• Complete accreditation checklists and manage devices to mitigate cyber security controls and measures.
• Assist in the implementation of global projects for Network and Information Assurance upgrades by providing technical insight, projected necessary actions, timelines, and resource availability
• Implement recurring security requirements on network devices
• Communicate with multi-tier support and global partners to coordinate troubleshooting efforts where required.
• Utilize moderate System Administration skills in both Linux and Windows environments to navigate current systems while managing network assets.
• Lead focused multi-tier teams while troubleshooting or upgrading global network problems.
• Provide architectural and topology recommendations where efficiencies can be made.
  
  

Basic Qualifications

• Bachelor's degree in a relevant technical discipline with 4+ years of overall related experience, 8+ years of experience will suffice in lieu of degree
• Active DoD Top Secret Security Clearance and ability to obtain a DoD Top Secret with SCI.
• Must have experience or training in IA and IA supporting technologies to include Cisco and Juniper firewalls, authentication technologies (e.g., Active Directory), directory services, and vulnerability assessment tools (e.g., Nessus, nmap).
• At least 3 years Linux or Windows experience.
• Currently possess DoD 8750 certification at IAT level II, e.g. Security+ce or higher.
• Currently possess an active Top Secret security clearance with the ability to acquire a Top Secret/SCI clearance.
• Must satisfy both preparatory and sustaining DoD standard training and certification requirements as a condition of privileged access to any DoD information system.
  
  

Preferred Qualifications

• Advanced Juniper experience
• Gigamon Load Balancer experience
• Experience with VMware vSphere/ESXi 5.
• ITIL certification.
  
  

Original Posting

June 13, 2025

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 $85,150.00 - $153,925.00

The Leidos pay range for this job level is a general guideline onlyand 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.

Seniority level

• Seniority level

  Mid-Senior level

Employment type

• Employment type

  Full-time

Job function

• Job function

  Information Technology

• Industries

  IT Services and IT Consulting

Referrals increase your chances of interviewing at Leidos by 2x

Sign in to set job alerts for “Information Security Specialist” roles.

Cyber Security Defense Analyst - (Entry Level)

Information Systems Security Officer (ISSO)

St Louis, MO $92,213.33-$125,146.66 1 month ago

Greater St. Louis $140,000.00-$160,000.00 1 week ago

Sr. Information Systems Security Officer (ISSO)

St Louis, MO $118,560.00-$171,253.33 1 month ago

Information System Security Officer (ISSO)

Collinsville, IL $85,000.00-$120,000.00 1 month ago

Scott AFB, IL $80,001.00-$120,000.00 5 hours ago

IT CYBERSECURITY SPECIALIST (NETWORK/INFOSEC)

Third-Party Information Security Risk Analyst

Scott AFB, IL $100,000.00-$106,000.00 2 weeks ago

IT Security Specialist III - TS/SCI - St. Louis, Mo

Fairview Heights, IL $166,280.00-$224,968.00 6 days ago

Cyber Security Operations Specialist - CSOC (Tiers 1, 2, 3)

St Louis, MO $75,200.00-$158,100.00 2 months ago

St Louis, MO $81,120.00-$117,173.33 1 month ago

Cyber Security Operations Specialist - CSOC (Tiers 1, 2, 3)

St Louis, MO $75,200.00-$158,100.00 4 months ago

St Louis, MO $63,600.00-$113,000.00 10 hours ago

Cybersecurity Operations Center Shift Lead

St Louis, MO $75,200.00-$158,100.00 9 months ago

Risk and Compliance Analyst - US Based Remote

Security Specialist III - Access Control Specialist

We’re unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI.