Network Security Engineer!

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

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 * * * Exciting Opportunity: Join Our Team as a Network Security Engineer! Are you passionate about network security and eager to make a significant impact? We have an incredible opportunity for you to join our Network Security Implementation and Sustainment (NSIS) Services section as a Senior Network Security Engineer. In this role, you’ll leverage your engineering expertise to analyze and enhance complex systems, architecture, network design, and technical hardware issues. Responsibilities: Conduct site surveys and document current network configurations. Organize and direct hardware installations across various sites. Analyze and recommend hardware specifications. Assist in building simulations and provide hardware throughput analyses. Design and verify test harnesses for integration phases. Prepare Mean-Time-Between-Failure and Mean-Time-To-Repair analyses. Identify choke points and failure modes for design improvements. Evaluate current systems and annotate vulnerabilities. Research and analyze various products for feasibility. Provide technical assistance in network planning and architecture. Assist in developing technical standards and interface applications. Ensure systems meet governmental security specifications. Contribute to system security documentation. Plan and evaluate network systems for resource recommendations. What You’ll Do: Innovate and Implement: Procure and perform acceptance testing on cutting-edge equipment. Deploy, install, and implement hardware both within the Continental United States (CONUS) and Outside Continental United States (OCONUS). Design and Develop: Prepare detailed specifications for hardware by analyzing system requirements. Conduct thorough site surveys and create comprehensive engineering plans and Technical Design Packages. Lead and Organize: Take charge of hardware installations across multiple sites. Configure and document the setup of computers, networking devices, and peripheral equipment. Analyze and Report: Prepare insightful site installation and test reports. Ensure that all problems are accurately identified and solutions meet user requirements. Provide recommendations on existing and emerging hardware technologies. Contribute to System Design: Offer specific input to the hardware components of system design, including end-user devices, servers, networking devices, data storage devices, and specialized processors. Why You’ll Love This Role: Dynamic Environment: Work in a fast-paced, innovative environment where your skills and ideas are valued. Global Impact: Contribute to projects that have a significant impact on national security and global communications. Professional Growth: Enjoy opportunities for continuous learning and professional development with a supportive team. Collaborative Culture: Be part of a collaborative team where your expertise is recognized and your contributions are celebrated. Qualifications: Required: Clearance : An active NSA TS/SCI with Polygraph. Experience: 5 years of experience as a Network Security Engineer, with a focus on analyzing complex hardware systems for SIGINT solutions. Education: A Bachelor’s degree in Communications Engineering, Computer Engineering, Computer Science, Electrical Engineering, Information Systems, Mathematics, or a related discipline. Alternatively, five (2) years of additional Network Security engineering experience may substitute for a Bachelor's degree. Certifications: Must meet DoD approved 8570 Baseline Certification for IAT Level III and possess at least three of the following vendor certifications: 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. Ready to Make a Difference? If you’re a dedicated Network Security Engineer looking for a challenging and rewarding role, we want to hear from you. Join us and be part of a team that’s at the forefront of network security innovation! Apply now and take the next step in your career with us! 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. 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, Sterling , Network Security Engineer!, IT / Software / Systems , Columbia, Virginia