Senior Network Engineer

Job overview

The Senior Network Engineer role is hybrid in Fort Belvoir, VA, with a stated salary range of $70,000–$104,000 per year. JCS Solutions supports its teaming partner Leidos in a Department of Defense environment, providing technology and professional services for mission needs. The engineer designs, implements, modernizes, and sustains enterprise LAN, WAN, and secure network infrastructure. The role supports classified and enterprise operations through network engineering, troubleshooting, documentation, modernization, and coordination with cybersecurity staff.

What you'll do

• Design, implement, configure, and maintain enterprise LAN and WAN infrastructure
• support Cisco routing and switching
• configure and maintain Palo Alto firewalls and GlobalProtect
• support MPLS, VPN, and internet transport
• monitor network health and troubleshoot
• maintain engineering documentation and diagrams
• support refreshes and upgrades
• coordinate with cybersecurity staff on DoD policies, RMF, and STIG compliance
• support scheduled maintenance and incident response.

What we're looking for

Skills & competencies

senior network engineer

fort belvoir va

jcs solutions

hybrid

$70k–$104k/year

ts/sci clearance

u.s. citizenship

cisco routing and switching

palo alto networks

lan/wan

dod 8140/8570 iat level ii

secure networks

Work arrangement

• Weekend coverage required

Benefits & perks

• Health, dental, and vision insurance
• life insurance
• short- and long-term disability
• PTO
• 401(k) with employer match
• annual professional development reimbursement.

Why this role

Active TS/SCI clearance and U.S. citizenship required; active DoD 8140/8570 IAT Level II certification required; flexible hours with off-hours availability when needed for installations and migrations.

About the employer

JCS Solutions LLC is hiring for this role. Industry: Computer Systems Design Services. Sector: 54.