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Network Engineer III

Job in Springfield, Fairfax County, Virginia, 22151, USA
Listing for: CACI International
Full Time position
Listed on 2026-08-05
Job specializations:
  • IT/Tech
    Network Engineer, Cybersecurity, Systems Engineer, Network Security
Job Description & How to Apply Below
Job Title:

Network Engineer III

Job Category:
Information Technology

Time Type:
Full time

Minimum Clearance Required to Start: TS/SCI

Employee Type:
Regular

Percentage of

Travel Required:

Up to 25%

Type of Travel:
Continental US

* *
* ** The Opportunity*
* Team CACI has an exciting and challenging opportunity available for a Network Engineer supporting an Intelligence Community customer's wide-area (WAN), local-area (LAN) and campus-area (CAN) networks across multiple security domains.

** Responsibilities:*
* Focus will be on Network Engineering, new project requirements, and operation and sustainment of existing infrastructure. This position does require travel to local sites up to 15% and may require travel to further CONUS/OCONUS locations on a voluntary basis.

-    Coordination of system maintenance, monitoring and installation of multiple WAN/LAN environments encompassing multiple specializations, platforms and technologies.

-    Assist with research and implementation of enterprise system-wide network solutions/capabilities/enhancements to support customer business/mission goals and objectives.

-    Troubleshoot and resolve network media and components.

-    Evaluate and monitor health and performance of the network including hardware and management software.

-    Develop and maintain a road map for capabilities, operations, and technologies.

-    Assist with development and execution of test plans and supporting documentation of all network configuration upgrades, additions or revisions for customer approval before implementation.

-    Support network traffic analysis and bandwidth optimization efforts to ensure attainment of performance and availability objectives.

-    Evaluate and report on new/emerging network/communication technologies to enhance capacity, performance and reliability of the network.

-    Evaluate and recommend changes and/or technology upgrades to address performance, standardization and industry best practices

-    Follows all Customer network security processes and procedures, ensures compliance with all Government policies.

-    Represent customer requirements in technical exchanges with other government agencies.

-    Perform site surveys to new installations and technology refresh.

-    Installs, maintains and troubleshoots satellite communications equipment.

-    Develop and maintain network architecture diagrams.

*
* Qualifications:

*
* ** _

Required:

_*
* -    Security Clearance: active TS/SCI

-    8+ years related technical experience in Network and Transport technologies, tools, and techniques

-    4+ years' experience with large-scale enterprise/global networks in a high paced diverse environment

-    Understanding and experience with the DoD Architecture Framework and other key DoD network architecture and strategic planning instructions

- Experience with Juniper, switches, routers, and firewalls. (MX, EX, QFX, SRX devices) Cryptographic devices (KG-175G/F/X, KG-142)

- Experience with Network analysis tools (Network monitoring, AAA solutions, security analysis tools, etc...)

- Experience with supporting IP services to connect to NIPRNET, SIPRNET, JWICS, and other external environments

- Experience with switching/LAN/L2 technologies, OSPF, BGP, MPLS, RSVP/LDP L2/3

VPNs, VRFs, IKE/IPSec, GRE tunnels, MTU/MSS, Import/Export policies, IPv4, IKE/IPSEC, Multicast, COS/QOS, SNMP, SYSLOG, AAA, etc...

- Experience with planning hardware for a new site installation or recap effort of existing equipment, planning projects, drafting network diagrams, drafting engineering configurations

- Experience with troubleshooting network environments and providing regular updates

- Certifications:

IAT II

** _Desired:_*
* -    JNCIA, JNCIS, JNCIP, CISCO CCNP, CCVP, CCNA or CCDP (or equivalent)

-    ITIL v3 Foundations

-    ISC2 CISSP

- Experience with integrating multi-vendor cloud environments

- ** 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.*
*…
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