Cyber Security Engineering Specialist IV/ Firewall Engineer
CACI International· enterprise· Defense· Jun 30, 2026 · 4mo agoPosted 119 days ago
Springfield, VA, US
In office
Full-time
Staff
$90K–$190K
8+ years exp
Before you apply
Ghost Signal:
Open since June 30, 2026 — 119 days, and still accepting applications.
Job description
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
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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 :
There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.
Since this position can be worked in more than one location, the range shown is the national average for the position.
The proposed salary range for this position is:
$90,300-$189,600
CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.
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