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# Cyber Network Security Engineer

- **Company:** CACI International Inc.
- **Location:** Chantilly, VA, United States
- **Experience:** Expert
- **Salary:** $94,400.0 - $198,200.0
- **Contract:** Permanent contract
- **Skills:** Software System Penetration Testing, Bash Shell, Ubuntu (Operating System), CentOS, Cyber Security, Databases, Database Queries, Linux, Perl (Programming Language), Networking Hardware, Network Packet, Python (Programming Language), Network Security, MySQL, Network Architecture, Network Monitoring, Nmap, Oracle (Applications), Solaris (Operating System), Tcpdump, Traffic Analysis, Wireshark, VMware Infrastructure, VMware VSphere, Network Routers, Scripting, Metasploit, Data Analytics, Fedora
- **Published:** October 16, 2026
- **Apply:** https://www.juju.com/job/1_caciinternational-1443148810747

## About the Role

frameworks, and best practices to improve the defensive posture of our sponsors **Qualifications:** _Required:_ + 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 with required polygraph This position is contingent on funding and may not be filled immediately.

## Description

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. **Responsibilities:** + 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