Prepin
Log in
CACI International Inc

engineering opportunity

Cyber Security Engineering Specialist IV/ Firewall Engineer

Research, analyze, and implement enterprise-wide network security solutions across WAN, LAN, and CAN networks. Oversee security infrastructure sustainment and lead the investigation and remediation of security-related incidents.

Springfield, Virginia, United StatesremoteFULL_TIME

Posted

About the role

What will you do at CACI International Inc?

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: 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. Click on Search Jobs
  • to find and apply to CACI openings.

Which skills does this role require?

Network SecurityFirewall EngineeringRisk AssessmentIncident ManagementJuniper SRXPalo Alto FirewallF5 Load BalancerCisco FTD/ASATS/SCI ClearanceDoD 8570 IAT Level IICSSP Infrastructure SupportVMWare VirtualizationUnixRHELS OSWindows Enterprise ADDoD Architecture FrameworkCyber SecurityFirewall EngineerTS/SCICI PolygraphDoD 8570Security+CSSPPalo AltoCisco FTDCisco ASAWANLANCANIDSWeb GatewaysMail GatewaysVMWareRHELSActive DirectoryNetwork ArchitectureInformation TechnologyIntelligence CommunityCACI

Make your next move

Build a shortlist and prepare

Identify the requirements you can demonstrate, then choose examples from your work to discuss with the hiring team.

Review the responsibilities and requirements before adding an opening to your shortlist.

Role information can change. Confirm current details on the original application page.

Product

AI Candidate AgentCompaniesBrowse JobsDeep ProfileSkill AssessmentOpportunity Matching
Prepin.ai

© 2026 Prepin | All rights reserved.