CACI International

Network Security Engineer

CACI International$120K — $265K *
Aerospace & Defense
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • Active TS/SCI clearance with Polygraph required.
  • 5+ years in Network Security Engineering for complex SIGINT systems.
  • Bachelor's degree in a related technical field or equivalent experience.
  • DoD 8570 IAT Level II certification necessary.
  • At least three relevant industry certifications from a specified list.

Responsibilities

  • Conduct onsite assessments and document network architectures and requirements.
  • Lead hardware installations across multiple environments.
  • Recommend tailored hardware specifications for unique projects.
  • Support systems engineering teams by modeling proposed solutions.
  • Design and implement hardware test interfaces.
  • Perform analyses to enhance reliability and maintainability.
  • Analyze data to identify vulnerabilities and performance gaps.
  • Evaluate LAN/WAN designs against mission security needs.
  • Research COTS/GOTS technologies to enhance mission capability.
  • Provide expertise in network engineering and architecture.
  • Contribute to technical standards and network troubleshooting guidance.
  • Ensure designs meet government security requirements.
  • Develop security documentation for systems.
  • Support wired and wireless network optimization.
  • Conduct vendor comparisons and scalability assessments.
  • Deliver evaluations of complex networks with improvement recommendations.
  • Identify system weaknesses and recommend actionable solutions.

Benefits

  • Comprehensive healthcare plans.
  • Wellness and financial benefits.
  • Robust retirement options.
  • Family support resources.
  • Continuing education opportunities.
  • Generous time off benefits.
Full Job Description
Job Title: Network Security Engineer

Job Category: Information Technology

Time Type: Full time

Minimum Clearance Required to Start: TS/SCI with Polygraph

Employee Type: Regular

Percentage of Travel Required: Up to 10%

Type of Travel: Local

Responsibilities:

  • Conduct onsite assessments and document current network architectures and mission‑specific requirements.

  • Lead and coordinate hardware installations across multiple environments.

  • Recommend hardware specifications tailored to unique project needs.

  • Support systems engineering teams by modeling and analyzing proposed solutions.

  • Design, verify, and implement hardware test interfaces.

  • Perform MTBF/MTTR analyses to strengthen reliability and maintainability.

  • Analyze operational data to identify system vulnerabilities and performance gaps.

  • Evaluate LAN/WAN designs and ensure architectures adhere to mission security needs.

  • Research and assess COTS/GOTS technologies to drive mission capability.

  • Provide high‑level expertise in network engineering, architecture, and planning.

  • Contribute to technical standards, interface specifications, and network troubleshooting.

  • Ensure system designs and implementations meet all government security requirements.

  • Develop and enhance security documentation for new and existing systems.

  • Support wired and wireless network analysis and optimization.

  • Conduct vendor comparisons, cost studies, and system scalability assessments.

  • Deliver independent evaluations of complex network ecosystems and recommend enhancements.

  • Identify and brief system weaknesses with clear, actionable recommendations.


Qualifications:

Required: 

  • An active NSA TS/SCI with Polygraph.

  • 5+ years of Network Security Engineering experience supporting complex SIGINT hardware systems.

  • Bachelor’s degree in a related technical field, or 5 additional years of experience in lieu of degree.

  • DoD 8570 IAT Level II certification.

  • At least three of the following certifications:
    – PCNSA
    – SNSA
    – SNSP
    – Symantec ProxySG 6.7 Technical Specialist
    – Cisco CCNA or higher

This position is contingent on funding and may not be filled immediately. However, this position is representative of positions within CACI that are consistently available. Individuals who apply may also be considered for other positions at CACI.

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.

The proposed salary range for this position is:

$120,800 - $265,800

About CACI International

CACI International Inc is a multinational professional services and information technology company. It provides services to many branches of the federal government including defense, homeland security, intelligence, and healthcare. CACI has approximately 23,000 employees worldwide. The company's mission is to provide enterprise and mission technology services and solutions that best fit the needs of its customers. CACI has been named a Fortune World's Most Admired Company, a Washington Post Top Workplace, and a Forbes Best Employer for Diversity.
Learn more about CACI International
Size
22,000 employees
Market Cap
$7.1 billion
Industry
Net Income
$374.4 million
Founded
1962
5 Year Trend
+7.3%
Revenue
$5.8 billion
NASDAQ

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