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Associate, Industrial Systems Administrator
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Senior Engineer, Cyber Engineering
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Senior Engineer, Cyber Engineering
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AWS Senior DevOps Engineer
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Added 11 mins ago
Mechanical Engineer
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Added 12 mins ago
Network Security Analyst
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Added 15 mins ago
Water Resources Management Market Sector Leader
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…directly support public health, environmental sustainability, and infrastructure resilience. We bring together experts across disciplines to solve complex challenges with bold thinking and…
Added 15 mins ago
Firewall Engineer II
CACI
Arnold, MO · Arnold
Oversee security infrastructure sustainment, maintenance, and advanced configuration. (firewalls, F5 load balancers, web gateways, mail gateways, IDS, and management tools).

CACI

Firewall Engineer II

Arnold, MO, United States
Arnold, United States

$63,300-$129,700 · Full-time

Apply on searchcareers.caci.com About employer

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Job details

Pay: $63,300-$129,700
Job type: Full-time
Apply by: May 11, 2027
Posting language: English
Posted: Nov 12, 2026

Original job description

Job Title: Firewall Engineer II

Job Category: Information Technology

Time Type: Full time

Minimum Clearance Required to Start: TS/SCI

Employee Type: Regular

Percentage of Travel Required: Up to 10%

Type of Travel: Local

The Opportunity:

CACI's Transport & Cybersecurity Services (TCS) program is actively seeking TS/SCI-cleared Firewall Engineers to join our Network Security Services (NSS) team! We are hiring for multiple openings for this role, at varying experience levels, and with the potential to be based out St. Louis, MO. TCS offers a long-term, CACI prime contract opportunity supporting the National Geospatial-Intelligence Agency’s (NGA) GEOINT mission. Our team of talented Network and Cybersecurity professionals help design, develop, procure, implement, operate/sustain, and enhance NGA networks and cybersecurity posture in support of national security. For additional information and a list of current openings, please visit the TCS Jobs page on the CACI Careers site: https://careers.caci.com/global/en/tcs-jobs

As a member of the TCS Network Security Services (NSS) team, you will work with both corporate and customer leadership to research, analyze, and implement enterprise-wide network security solutions/capabilities/enhancements to support customer business/mission goals and objectives.

Responsibilities:

Assist with design, analysis, testing, and implementation of state-of-the-art secure network architectures.
Conduct risk assessment and provide design recommendations.
Manage WAN, LAN, CAN, and remote network security as well as incident and problem management.
Oversee security infrastructure sustainment, maintenance, and advanced configuration. (firewalls, F5 load balancers, web gateways, mail gateways, IDS, and management tools).
Oversee the reporting, documentation, and investigation of all security-related incidents; lead the development and implementation of corrective measures.
Develop and execute standard operating procedures (SOPs) for security tools.
Evaluate and report on new network Security technologies to enhance the capabilities of the network.
Act as liaison to the contract and customer management, and government Designated Approving Authority (DAA) regarding network security status, policies, and procedures.

Qualifications:

Required:

TS/SCI (current) • Must be able to successfully pass/maintain a U.S. Government Polygraph (post-hire)
BA/BS Degree and typically between Two (2) and Eight (8) years of related technical experience in Network Security with large-scale enterprise/global networks in a high-paced, diverse environment. (Additional experience may be considered instead of a degree.)
DoD 8140.01 and DoD 8570.01-M IAT Level II compliant certification (current)
Must be able to successfully obtain/maintain CSSP Infrastructure Support certification within 120 days of start date (post-hire)
Firewalls (e.g. Palo Alto, Juniper, Cisco, etc.)
Routers/Switches (e.g. Juniper, Cisco, etc.)
Intrusion Detection Systems / IDS Products (e.g. FireEye, F5 Load Balancer, Cisco FTD, etc.)
Unix, RHELS OS, Windows Enterprise AD, VMware

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:

$63,300-$129,700

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.

Apply on searchcareers.caci.com About employer

More about this job

Skills

Cybersecurity
Leadership
Research
Hazard assessment
WAN
LAN
Coordinate security
IDS
Reporting
Documentation
UNIX
Microsoft Windows
VMware

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Work requirements

Jobs in the United States