Senior Network Engineer

Job overview

The Senior Network Engineer role is onsite in McLean, VA, and compensation is not specified. The position supports enterprise networking for a U.S. Government IT environment at Agil3 Technology Solutions. This role exists to sustain secure, reliable network services across geographically dispersed customer locations. The engineer designs, administers, monitors, documents, and troubleshoots network infrastructure, provides Tier III escalation support, and coordinates with systems, cloud, cybersecurity, and technical support teams.

What you'll do

• Design, configure, administer, maintain, monitor, secure, document, and troubleshoot enterprise LAN, WAN, and wireless infrastructure
• manage Cisco equipment, IP addressing, VLANs, and IPAM
• support telecommunications circuits and vendor cases
• diagnose outages and performance issues
• apply updates and cybersecurity hardening
• maintain configuration baselines and technical documentation
• support modernization and equipment replacement
• provide Tier III escalation support and technical guidance.

What we're looking for

Skills & competencies

senior network engineer

mclean va

agil3 technology solutions

enterprise networking

cisco

lan/wan

wireless infrastructure

tier iii support

dod secret clearance

ccnp

network security

full-time

Work arrangement

• Weekend coverage required

Benefits & perks

• Medical, dental, vision, life insurance, short- and long-term disability, 401(k) with company match, paid holidays, PTO, tuition and professional development assistance, and metropolitan-area parking/travel reimbursement.

Why this role

Requires 8+ years of network experience, an active DoD Secret clearance, Cisco Certified Network Professional (CCNP), and DoD 8140/DCWF Work Role 441 Advanced proficiency.

About the employer

Agil3 Technology Solutions (A3T) is hiring for this role. Industry: Computer Systems Design Services. Sector: 54.