Senior Network Security Engineer

Company: CACI
Location: Columbia
Posted on: April 1, 2026

Job Description:

Job Title: Senior 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 * * * Exciting Opportunity for Network Engineers: Join Our Elite Network Security Team! Are you a seasoned Network Engineer looking to take your career to the next level? We are seeking a highly skilled Network Security Engineer to join our dynamic Network Security Implementation and Sustainment (NSIS) Services team. In this role, you will leverage your expertise to analyze and enhance complex systems, architectures, and network designs. If you thrive in a challenging environment and are passionate about network security, this is the opportunity for you. Responsibilities: Procurement and Testing: Source and perform acceptance testing on cutting-edge network equipment. Maintenance Support: Provide both preventative and remedial hardware maintenance to ensure optimal network performance. Deployment: Install and implement network hardware across CONUS and OCONUS locations. Specification Preparation: Analyze system requirements to prepare detailed hardware specifications. Site Surveys: Conduct comprehensive site surveys to assess current network configurations and unique site requirements. Technical Design: Prepare engineering plans and Technical Design Packages for network installations. Installation Management: Organize and direct hardware installations, ensuring seamless execution. Configuration: Configure and document the setup of computers, networking devices, and peripheral equipment. Reporting: Prepare detailed installation and test reports, and provide recommendations on existing and emerging hardware technologies. Problem Solving: Ensure issues are properly identified and solutions meet user requirements. System Design Input: Contribute to the hardware components of system design, including end-user devices, servers, and networking equipment. Qualifications: Required: Conduct thorough site surveys and document network configurations. Manage hardware installations across multiple sites. Analyze and recommend hardware specifications tailored to project needs. Assist in building simulations and provide hardware throughput analyses. Design and verify test harnesses and simulated interfaces. Prepare Mean-Time-Between-Failure and Mean-Time-To-Repair analyses. Identify network choke points, failure modes, and recommend improvements. Review and support network communications systems (LAN/WAN). Evaluate current systems and annotate vulnerabilities. Research and analyze COTS/GOTS components and GFE for feasibility. Provide technical assistance in network planning, engineering, and architecture. Develop technical standards and interface applications. Ensure network designs meet governmental security specifications. Assist in developing system security documentation. Analyze and provide feedback on wired and wireless network systems. Plan vendor comparisons, cost studies, and security assessments. Evaluate existing network systems and recommend resource allocations. Education and Experience: Clearance: An active NSA TS/SCI with Polygraph. Experience: 15 years as a Network Security Engineer analyzing complex hardware systems for SIGINT solutions. Education: Bachelor’s degree in Communications Engineering, Computer Engineering, Computer Science, Electrical Engineering, Information Systems, Mathematics, or a related field. Alternatively, 5 additional years of Network Security engineering experience may substitute for the degree. Certifications: Must hold DoD approved 8570 Baseline Certification for IAT Level III and possess at least 3 of the following: Palo Alto Networks Certified Network Security Administrator (PCNSA), Sonicwall Network Security Administrator (SNSA), Sonicwall Network Security Professional (SNSP), Symantec ProxySG 6.7 Technical Specialist, or Cisco CCNA or higher. Why Join Us? Career Growth: Advance your career with challenging projects and continuous learning opportunities. Impact: Make a significant impact on network security and system performance. Collaborative Environment: Work with a team of experts dedicated to excellence. Global Reach: Opportunity to work on projects across CONUS and OCONUS. Apply Now and be a part of our mission to secure and enhance network systems worldwide! - 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. The proposed salary range for this position is: $120,800 - $265,800 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.

Keywords: CACI, Cherry Hill , Senior Network Security Engineer, IT / Software / Systems , Columbia, New Jersey