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CACI

Cyber Network Security Engineer

Chantilly, VA, US

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hirly's read of this role

Role family
Engineering
Seniority
Mid level
Stated salary
$94,400 – $198,200 per year
Country
US
Work mode
On-site / unstated
First seen by hirly
27 Sept 2026

Derived automatically from the posting. Upload your resume above to see how the role scores against it.

the posting

Job Title: Cyber Network Security Engineer

Job Category: Engineering

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

* * *

  • The Opportunity:
  • 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.

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, 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. 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:

$94,400 - $198,200

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.

Original posting on CACI's site ↗

Listed on hirly, a job board. hirly is not the employer: CACI is hiring for this role.

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