SME Network Engineer (LAN/WAN)

CACI International Inc; Ashburn (VA); On-site; USD 121,000 - 266,000; Full time

Job summary

CACI International Inc. is seeking a Subject Matter Expert Network Engineer (LAN/WAN) to lead enterprise network architecture for the GMOS program supporting the Department of State.

You will guide a high-performing team to modernize and maintain LAN/WAN infrastructure and CI/CD pipelines using DevSecOps practices. The role requires strong TCP/IP knowledge, routing, switching, and WAN experience in large federal environments, with a Secret clearance and up to 10% travel.

Qualifications

• Bachelor's degree + 13 years in network engineering or IT operations
• Active Secret Clearance
• Experience leading enterprise LAN/WAN in federal environments
• Strong TCP/IP, routing, switching, VLAN design, and WAN technologies
• Proficiency with DevSecOps tools and CI/CD pipelines

Responsibilities

• Provide technical and management leadership for network engineering services, optimizing LAN networks across the global enterprise
• Coordinate with remote CA sites and DT to establish WAN connectivity across 350+ facilities
• Document and maintain enterprise LAN/VLAN diagrams, topology, and rack/wiring standards
• Lead WAN link upgrades connecting CONUS/OCONUS facilities for better bandwidth and reliability
• Configure and maintain TCP/IP, network protocols, and standards per DoS requirements
• Monitor WAN link usage and plan proactive upgrades using SD-WAN and automation
• Develop roadmaps for network modernization and cloud integrations
• Direct major assignments, budgeting, staffing, and methodology decisions

Skills

TCP/IP networking

WAN technologies

BGP/OSPF/EIGRP

DevSecOps tooling

CI/CD pipelines

Network automation

Team leadership

Budget management

Education

Bachelor's degree

Tools

Ansible

Terraform

SonarQube

Job description

Job Title: SME Network Engineer (LAN/WAN)

Job Category: Information Technology

Time Type: Full time

Minimum Clearance Required to Start: Secret

Employee Type: Regular

Percentage of Travel Required: Up to 10%

Type of Travel: Local

* * *

The Opportunity

CACI is seeking a SME Network Engineer (LAN/WAN) 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

• Provide technical and management leadership for network engineering services, optimizing and standardizing LAN networks across the global enterprise
• Direct coordination with remote CA sites and DT to establish and maintain WAN connectivity across 350+ global facilities, ensuring reliable communications infrastructure
• Establish enterprise LAN/VLAN diagramming, documenting, configuring, and maintaining standards including rack elevations, wiring diagrams, and network topology documentation
• Direct engineering of WAN link upgrades connecting CONUS and OCONUS Consular facilities, ensuring modernized connectivity standards and enhanced bandwidth capabilities
• Establish enterprise TCP/IP and network protocol configuration, maintenance, and troubleshooting standards aligned with Department of State requirements and best practices
• Direct WAN link utilization monitoring, coordinating with DT to plan and execute proactive bandwidth upgrades utilizing emerging technologies such as SD-WAN and AI-driven optimization
• Establish strategy for network upgrades supporting seamless interoperability with 42+ external partner agencies including future cloud integration and hybrid network architectures
• Excel in DevSecOps tooling (e.g., Ansible, Terraform, SonarQube) and design and construct advanced CI/CD pipelines with extensive experience automating continuous build, test, security validation, results collection, and success/failure analysis
• Develop strategic network architecture roadmaps and modernization initiatives aligned with Department of State objectives, emerging technologies, and evolving mission requirements
• Provide technical and management leadership on major assignments, establishing strategic goals and plans that meet project objectives while directing activities with overall responsibility for financial management, methodology selection, and staffing decisions

Qualifications

Required –

• Bachelor's degree + 13 years of experience in related fields, such as network engineering, LAN/WAN architecture, infrastructure engineering, network design, or IT operations leadership; equivalencies considered.
• Active Secret Clearance
• Proven experience providing strategic leadership for enterprise LAN/WAN engineering across large-scale, geographically distributed federal environments
• Demonstrated expertise in TCP/IP networking, routing protocols (BGP, OSPF, EIGRP), switching, VLAN design, and WAN technologies (MPLS, SD-WAN)
• Strong proficiency with DevSecOps tools and advanced CI/CD pipeline architecture, particularly with Ansible, Terraform, and network automation frameworks
• Excellent leadership abilities with proven experience directing technical teams, managing program budgets, and making strategic staffing and resource allocation decisions

Desired –

• Prior experience supporting federal agencies, especially the Department of State
• Professional certifications such as Cisco CCIE, CCNP Enterprise, CCNP Service Provider, or similar advanced networking certifications
• Experience with cloud networking (AWS, Azure, Google Cloud), SD-WAN technologies, and hybrid network architectures
• Knowledge of interagency connectivity requirements, cross-domain solutions, and experience integrating with 40+ external partner agencies in government 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.

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

$120,800 - $265,800

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.