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Cyber Security Engineering Specialist IV​/Firewall Engineer Security Clearance

Job in Springfield, Fairfax County, Virginia, 22150, USA
Listing for: CACI
Full Time position
Listed on 2026-06-03
Job specializations:
  • Engineering
    Cybersecurity, Systems Engineer
Job Description & How to Apply Below
Position: Cyber Security Engineering Specialist IV/ Firewall Engineer with Security Clearance
Job Title:

Cyber Security Engineering Specialist IV/ Firewall Engineer Job Category:
Information Technology Time Type:
Full time Minimum Clearance Required to Start: TS/SCI Employee Type:
Regular Percentage of

Travel Required:

Up to 10% Type of Travel:
Local *
*
* The Opportunity:

Team CACI on our TCS Program has an exciting and challenging opportunity available for a Network Security Engineer supporting an Intelligence Community customer's wide-area (WAN), local-area (LAN) and campus-area (CAN) networks across multiple security domains. Position is located at Springfield, VA. Responsibilities:
* Work with both corporate and customer leadership to research, analyze, and implement enterprise-wide network security solutions/capabilities/enhancements to support customer business/mission goals and objectives.

* Assists with designs, analyses, tests and implementation of state-of-the-art secure network architectures.

* Conducts risk assessment and provides recommendations for design.

* Manage WAN, LAN, CAN, and remote network security as well as incident and problem management.

* Oversee security infrastructure sustainment, maintenance, and advanced configuration. (firewalls, F5 load balancers, web gateways, mail gateways, IDS, and management tools).

* Oversee the reporting, documentation and investigation of all security related incidents; lead the development and implementation of corrective measures.

* Responsible for development and execution of standard operating procedures for security tools.

* Evaluate and report on new network Security technologies to enhance capabilities of the network.

* Act as liaison to the contract and customer management, and government Designated Approving Authority (DAA) with regard to all network security status, policies, and procedures.

Qualifications:

Required:

* Bachelor's degree in Computer Science or related field (related work experience considered in lieu of degree)

* 8+ years related technical experience in Network Security

* 8+ years experience with large-scale enterprise/global networks in a high paced diverse environment

* Active TS/SCI

* Ability to obtain and maintain a CI polygraph
* - DOD 8570 IAT Level II certification. (Security + minimum to start)
* - Must obtain a CSSP Infrastructure Support certification within 6 months of date of hire.

* Ability to work independently with little direction and guidance

* Ability to work weekends and evening hours as needed

* Excellent writing and communication skills, including the ability to develop analytical documents and present oral presentations to senior/executive management

* Proficient is MS Office suite - Visio, Word, Excel, PowerPoint, and Project

* Travel up to 15% of the time CONUS, maybe occasional OCONUS

* Understanding and experience with the DoD Architecture Framework and other key DoD network architecture and strategic planning instructions.

* Expert knowledge of IP services

* Experience in providing status reports and products to senior management and customers

* Experience with Juniper SRX, Palo Alto Firewall, F5 Load Balancer, Cisco FTD/ASA

* Experience with plans, designs, and evaluations of security systems and architectures.

* Experience with Unix, RHELS OS, Windows Enterprise AD architecture and VMWare virtualization experience - What You Can Expect: A culture of integrity. At CACI, we place character and innovation at the center of everything we do. As a valued team member, you'll be part of a high-performing group dedicated to our customer's missions and driven by a higher purpose - to ensure the safety of our nation.

An environment of trust. CACI values the unique contributions that every employee brings to our company and our customers - every day. You'll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality. A focus on continuous growth. Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground - in your career and in our legacy.

Pay Range :
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