Senior Network Engineer — TS/SCI with Poly, Onsite VA

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

Job summary

CACI International Inc in Sterling, VA, is seeking a Network Engineer to design, secure, and optimize LAN/WAN/VPN infrastructures across cloud and bare-metal environments. The role requires TS/SCI clearance with polygraph and 10+ years of experience.

You will monitor performance, troubleshoot complex issues, and ensure compliance with government regulations while collaborating with internal teams and external providers.

Qualifications

• Active TS/SCI security clearance with polygraph.
• Bachelor’s degree in Computer Science, Information Technology, or related field of study.
• 10+ years of technical experience in Network and Transport technologies, tools, and techniques.
• Certifications in information security (CISSP or Security+) required.
• Experience supporting both classified and unclassified networks.

Responsibilities

• Design, maintain, and optimize LAN/WAN/VPN network infrastructures.
• Monitor and evaluate network performance and health.
• Troubleshoot and resolve complex network, hardware, software, and infrastructure issues.
• Plan, test, and implement network upgrades, configurations, and revisions.
• Ensure compliance with network security policies and government regulations.
• Evaluate emerging network and communication technologies.
• Provide escalation support and communicate incident status to management and customers.
• Conduct site surveys, planning, and design support.
• Maintain thorough documentation of network configurations, procedures, and incidents.
• Collaborate with internal teams, external service providers, and customers.

Skills

Strong problem-solving and analytical

Excellent communication and leadership

Security clearance TS/SCI with poly

Education

Bachelor’s degree in Computer Science/IT or related field

Tools

Cisco

Palo Alto

VMware NSX

VPN technologies

Cryptographic devices

Cloud networking

Job description

CACI International Inc in Sterling, VA, is seeking a Network Engineer to design, secure, and optimize LAN/WAN/VPN infrastructures across cloud and bare-metal environments. The role requires TS/SCI clearance with polygraph and 10+ years of experience.

You will monitor performance, troubleshoot complex issues, and ensure compliance with government regulations while collaborating with internal teams and external providers.