Network Administrator (Journeyman)

CACI; Ashburn (VA); On-site; USD 90,000 - 120,000; Full time

Job summary

CACI seeks a Journeyman Network Administrator to support the GMOS contract for the Department of State. The role involves establishing WAN connectivity, designing and maintaining LANs/VLANs, installing and tuning monitoring tools, and managing security policies across cloud, data center, and hybrid environments.

Ideal candidates hold an active Secret clearance, a related bachelor's degree with several years of network experience, and proven expertise in Cisco configurations, firewall

Qualifications

• Bachelor's degree in a related field and 4 years of relevant experience.
• Active Secret Clearance required.
• Strong Cisco LAN/VLAN, WAN, monitoring, security, and troubleshooting skills.
• Experience with network performance analysis and capacity planning.

Responsibilities

• Establish and maintain WAN connectivity across remote sites.
• Diagram, document, configure, and maintain LANs/VLANs with rack elevations.
• Install, configure, and maintain network monitoring servers and software.
• Install/load balancers and API Gateways in data centers, cloud, or hybrid.
• Analyze logs to identify trends and improve network performance.
• Monitor CA locations' infrastructure and coordinate issue resolution.
• Monitor utilization and plan capacity upgrades.
• Perform preventive/remedial maintenance on network infrastructure.
• Design and troubleshoot Firewall Rules and API gateway policies.
• Develop workarounds and triage steps for Service Desk.
• Daily admin, updates, and patching of F5 devices.
• Provide technical support for F5-related incidents.

Skills

Network admin

Cisco config

WAN connectivity

Network monitoring

Firewall admin

Troubleshooting

Capacity planning

Analytical skills

Education

Bachelor's degree

Tools

SolarWinds

PRTG

Nagios

F5

Job description

Job Title: Network Administrator (Journeyman)

Job Category: Information Technology

Time Type: Full time

Minimum Clearance Required to Start: Secret

Employee Type: Regular

Percentage of Travel Required: Up to 10%

* * *

The Opportunity:

CACI is seeking a Journeyman Network Administrator for the Global Mission Operations Support (GMOS) contract, supporting the Department of State. This role offers a unique opportunity to enhance national security through advanced IT solutions. You will collaborate with experienced professionals in an innovative environment, guiding a high-performing team to deliver excellence. The GMOS contract aims to provide world-class IT support by modernizing and maintaining applications and infrastructure using an integrated IT Service Management approach. Join us to make a meaningful impact on a program of national importance.

Responsibilities:

• Establish and maintain WAN connectivity with remote CA sites and DT, ensuring reliable network communications across geographically distributed locations
• Diagram, document, configure, and maintain LANs/VLANs including detailed rack elevations, wiring diagrams, and facility floor plans
• Install, configure, troubleshoot, and maintain network monitoring servers and software to ensure comprehensive visibility into network performance
• Install and configure load balancers and API Gateways appliances or virtual instances in data centers, cloud, or hybrid setups
• Analyze network equipment logs to identify trends, detect problems, and maximize network performance and efficiency
• Monitor infrastructure system availability for CA locations, coordinating with DT ENMOC to proactively identify and resolve network issues
• Monitor infrastructure utilization, proactively analyze performance trends, and request/track capacity upgrades to meet evolving business requirements
• Perform preventive and remedial maintenance on network infrastructure and recommend configuration changes and upgrades to enhance reliability
• Monitor WAN links supporting CA remote sites and data center connectivity, ensuring optimal performance and availability
• Design, create, implement, and troubleshoot Firewall Rules, micro‑segmentation policies, iRules, or API gateway policies for networking devices and applications to maintain security while enabling business operations
• Develop and enhance technical or functional workarounds and triage steps that aid Service Desk Technicians in rapidly resolving network‑related issues
• Perform daily administration, updates, and patching of F5 devices
• Provide technical support, troubleshooting, and mitigation for F5‑related incidents

Qualifications:

Required:

• Bachelor's degree + 4 years of experience in related fields, such as network administration, network engineering, systems administration, infrastructure support, or IT operations; equivalencies considered.
• Active Secret Clearance
• Proven experience with network administration including Cisco LAN/VLAN configuration, WAN connectivity, network security, and network monitoring
• Demonstrated knowledge of network protocols, routing, switching, and firewall administration
• Strong understanding of network troubleshooting, performance analysis, and capacity planning
• Excellent analytical and problem‑solving skills with ability to diagnose complex network issues and implement effective solutions

Desired:

• Prior experience supporting federal agencies, especially the Department of State
• Experience with network monitoring tools (e.g., SolarWinds, PRTG, Nagios) and network management platforms
• Experience with network automation
• Experience with configuring and maintaining f5, Palo Alto firewalls, cloud networking, and Broadcom Layer 7 or Mulesoft API gateways
• Professional certifications such as Cisco CCNA, CompTIA Network+, or similar networking certifications
• Knowledge of ITIL frameworks and IT Service Management best practices for network operations

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