Senior Network Engineer – DoD Enterprise (Cisco CCNP)

A3T (Agil3 Technology Solutions); California; On-site; USD 140,000 - 180,000; Full time

Benefits offered by this job

Medical Insurance

Dental Insurance

Vision Insurance

Life Insurance

Short/Long-Term Disability

401k with Company Match

Paid Holidays

Paid Time Off

Tuition and Professional Development

Job summary

Agil3 Technology Solutions (A3T) seeks an experienced Senior Network Engineer to design, implement, and sustain enterprise LAN/WAN infrastructure across the U.S. Government IT environment.

You will configure Cisco equipment, manage IP addressing and VLANs, and troubleshoot complex outages with a focus on security and reliability. The role requires 8+ years in enterprise networks, active DoD clearance, CCNP, and strong documentation practices.

Qualifications

• 8+ years of progressive network administration/engineering experience.
• Active DoD Secret clearance and CCNP certification required.
• DoD 8140/DCWF Work Role 441 Advanced proficiency.
• Strong TCP/IP, routing, switching, VLANs, DNS, DHCP, VPN knowledge.
• Experience with enterprise LAN/WAN and wireless networks.
• Ability to troubleshoot DISA, telecom-provider, and circuit connectivity.
• Experience with security-hardening and DoD cyber requirements.
• Excellent written and verbal communication skills.

Responsibilities

• Engineer and maintain enterprise LAN, WAN, and wireless networks.
• Configure Cisco devices and related management technologies.
• Manage IP addressing, VLANs, and network services.
• Monitor performance, troubleshoot outages, and perform root-cause analysis.
• Coordinate with cyber and security teams on hardening configurations.
• Prepare SOPs, AARs, and network documentation.
• Provide Tier III escalation and mentor junior staff.
• Coordinate with external service providers as needed.

Skills

8+ years experience

CCNP Certification

DoD 8140/DCWF

TCP/IP & Routing

Network troubleshooting

Security compliance

Verbal & written communication

Education

Bachelor's degree in IT/CS/Networking

Certifications: CISSP/Security+ etc

Tools

Cisco Networking Equipment

IPAM tools

Network Monitoring

DISA/STIG tooling

VLAN/subnetting

Job description

Agil3 Technology Solutions (A3T) seeks an experienced Senior Network Engineer to design, implement, and sustain enterprise LAN/WAN infrastructure across the U.S. Government IT environment.

You will configure Cisco equipment, manage IP addressing and VLANs, and troubleshoot complex outages with a focus on security and reliability. The role requires 8+ years in enterprise networks, active DoD clearance, CCNP, and strong documentation practices.