Network Security Engineer with Security Clearance

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: None Type of Travel: None What You''ll Get to Do: You will support our work automating cybersecurity operations, emulating adversary behavior, and improving the defensive postures of our sponsors. You''ll evaluate tools and methodologies, assess adversary intent, develop cybersecurity analytics and other techniques to thwart or detect attacks, develop approaches to automate cybersecurity operations, and engage in research to improve the state of the practice. More About the Role: * Work closely with red-team experts to evaluate IT environments and identify security goals, vulnerabilities, objectives, and requirements* Perform cybersecurity operations testing, and develop improvements to doing so, based on real adversary behavior described in adversary emulation plans* Evaluate the efficacy of existing detection mechanisms, analytics, and mitigations* Identify gaps in visibility, data, tools, and process* Address gaps within defenses by improving systems and processes* Develop approaches to automating cybersecurity operations, reducing cost and increasing efficiency* Solve cyber problems through operations, data-driven analytics, and development* Leverage research, frameworks, and best practices to improve the defensive posture of our sponsors Required Skills: * Approximately seven years of experience as an infrastructure operator* Proficiency working in a Linux environment - Centos, Ubuntu, Fedora, Solaris, Backtrack* Database experience, to include writing complex queries and modifying schemas (e.g. Oracle, MySQL).* Experience in a cyber-security role* Experience configuring network devices (e.g. routers, switches, etc.).* Experience performing network packet inspection, traffic analysis, performance characterization (e.g. Wireshark, TCPdump, etc.).* Understanding of network/cyber security, penetration testing, and information security best practices* Understanding of Linux network security tools - (e.g. Metasploit, netcat, nmap, etc.).* Experience building virtual infrastructure - (e.g. vSphere).* Experience using scripting languages for automation, parsing data sets, and network monitoring (e.g. bash, Perl, Python, etc.).* Experience in either the design, implementation, procurement and maintenance of network infrastructure* Active TS/SCI w/ polygraph What We Can Offer You: * We''ve been named a Best Place to Work by the Washington Post.* Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives.* We offer competitive benefits and learning and development opportunities.* We are mission-oriented and ever vigilant in aligning our solutions with the nation''s highest priorities.* For over 55 years, the principles of CACI''s unique, character-based culture have been the driving force behind our success. Company Overview: At CACI, you will have the opportunity to make an immediate impact by providing information solutions and services in support of national security missions and government transformation for Intelligence, Defense, and Federal Civilian customers. CACI is an Equal Opportunity Employer - Females/Minorities/Protected Veterans/Individuals with Disabilities. As a federal contractor, CACI is subject to any federal vaccine mandates or other customer vaccination requirements. All new hires are required to report their vaccination status.

Created: 2025-11-15