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Network Infrastructure Engineer

Job in McLean, Fairfax County, Virginia, USA
Listing for: CACI International Inc.
Full Time position
Listed on 2026-09-20
Job specializations:
  • IT/Tech
    Network Engineer, Systems Engineer, Cybersecurity, Network Security
Salary/Wage Range or Industry Benchmark: 120800 - 265800 USD Yearly USD 120800.00 265800.00 YEAR
Job Description & How to Apply Below
Job Title:

Network Infrastructure 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:

Up to 25%
Type of Travel:
Local*
*
* The Opportunity:

CACI is looking for a Network Engineer to join the Luke Team! You will support the customer's data communications network; maintain the network hardware and software as well as monitor the network to ensure availability to all system users; and perform the necessary maintenance to support network availability. You will need to be proficient in Cisco network solutions, as well as software defined networks and firewalls from AWS, Google, and Microsoft.

The purpose of the Luke program, is to provide dev ops, applied technology investigations, operations and maintenance and infrastructure lifecycle support services across the ODNI’s enterprise. Our support in NOVA and Bethesda includes software engineering/development, O&M, technology investigations, customer advocacy, business process engineering, and system design. Invent your future and make a lasting impact at CACI!

Responsibilities:

Deploy, configure, maintain and monitor all active network equipment (Cisco routers, switches, firewalls) ensuring seamless network operations

Responsible for troubleshooting and resolving network issues, implementing security measures and proactively optimizing network performance

Monitor and resolve network related service tickets

Maintain Standard Operating Procedures (SOPs) and network design documentation

Setup user accounts, permissions and passwords

Perform network upgrades to maintain system integrity and overall availability

Support and administer third-party applications

Ensure security and efficiency of IT infrastructure following industry standards

Qualifications:

Required:

Active TS/SCI with Polygraph Bachelor's degree in Computer Science, Engineering or similar field or similar experience

Experience designing and building enterprise-level network architectures

Experience supporting and troubleshooting production network systems built with Cisco network vendor platforms

Knowledge of and experience with networking technology and protocols, TCP/IP, Routing (static, OSPF, BGP, and policy-based), Firewalls (zone based polices and ACLs), SSH, VPNsKnowledge of network management platforms such as Solarwinds Demonstrated understanding of IPv4 networks

Experience with network device hardening in accordance with industry best practices

Knowledge of different operating systems (Microsoft, Unix, Linux, etc.)Attention to detail, problem solving mindset, critical thinking and team working skills

Desired:

Cisco CCNP certifications or skill level at minimum (Senior / Expert)

Experience with automating network tasks using Ansible or Python Familiarity with cloud hosting solutions such as Amazon AWS, Microsoft Azure and Google CloudVMWare experience

CompTIA Network+, CCNP, CCNA certifications-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 —…
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