Demo

Senior Network Administrator

CACI
Aberdeen, MD Full Time
POSTED ON 12/11/2025
AVAILABLE BEFORE 2/11/2026
Senior Network Administrator

Job Category: Information Technology

Time Type: Full time

Minimum Clearance Required to Start: Secret

Employee Type: Regular

Percentage of Travel Required: None

Type of Travel: None

* * *

The Opportunity:

Support the DoD as Senior Network Administrator for an Army Task Order that provides system administration, network administration, and database administration to support, maintain and operate an enclave of the Defense Research and Engineering Network (DREN). This position is a hybrid position that usually only requires 2 days onsite at Aberdeen Proving Grounds, MD.


Responsibilities:

  • Improve, maintain, configure, install, harden, and report on a DoD network consisting of Cisco switches, routers, and security devices.

  • Use problem solving skills to identify and correct network related problems such as bottlenecks, blockages, errors, and more.

  • Ensure networking devices meet and/or exceed Risk Management Framework (RMF) and Security Technical Implementation Guidelines (STIG) requirements to maintain the network’s Authority to Operate (ATO)

  • Assist various teams in standing up or improving new and existing technologies by providing network access with security in mind.

  • Use networking technologies such as Vlans, Subnets, and routing protocols to isolate traffic and ensure segmentation of certain traffic types where required by STIG or best practice.

  • Provide support to customers and team members to solve challenging IT network problems.


Qualifications:
Required:

  • Active DoD Secret Clearance.

  • Experience with Cisco Layer 2 and Layer 3 switches.

  • Experience with Cisco Firewalls.

  • Experience with Cisco Routers.

  • Experience working with and reporting on DISA STIGs.

  • Experience with Software Defined Networking (SDN).

  • Experience with Cisco Catalyst Center (formerly DNA Center).

  • Experience with Cisco Application Centric Infrastructure (ACI).

  • 7 Years of experience.

  • Bachelor's Degree in Computer Science, Mathematics, or other Engineering or Technical discipline. An Advanced degree is desired.

  • 8140 Cyber Workforce Qualification Program Certification (CEH or CFR or Cloud or GICSP or SSCP or Security or GSEC).


Desired:

  • Experience with Fibre Channel (FC) storage networking.

  • Experience with Cisco WiFi products.

  • Experience with Port Security such as 802.1x.

  • Experience with Cisco ISE.


 

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. 

 

Your potential is limitless. So is ours.

Learn more about CACI here.

________________________________________________________________________________________

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. Learn more here.

The proposed salary range for this position is:

$99,300 - 208,600 USD

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.

Salary : $99,300 - $208,600

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