Senior Network Engineer
LOCATION: Columbia, MD (Onsite)
JOB STATUS: Full-time
CLEARANCE: Active Top Secret (TS/SCI Preferred)
TRAVEL: As Needed
SALARY RANGE: $145k - $165k
Astrion has an exciting opportunity for a highly experienced Senior Network Engineer to design, implement, secure, and maintain mission-critical network infrastructures supporting Department of Defense/Department of War (DoD/DoW) environments. The idóneo candidate brings deep expertise in Cisco and Fortinet technologies, extensive experience operating within classified networks, and a proven track record of implementing and maintaining systems in compliance with Risk Management Framework (RMF), DoD STIG and Cross Domain / Comply-to-Connect (C2C) requirements.
REQUIRED QUALIFICATIONS / SKILLS
Active Top Secret security clearance.
TS/SCI preferred
Bachelor’s degree in Network Engineering, Computer Science, or related field (or equivalent experience)
8+ years of experience in network engineering within Department of Defense/Department of War (DoD/DoW) or classified environments
Deep expertise in:
Cisco routing & switching (BGP, OSPF, EIGRP, VLANs, MPLS)
Fortinet solutions (FortiGate, FortiOS, VPNs, security fabric)
Demonstrated experience implementing and maintaining DISA STIG compliance
Hands-on experience with C2C / Cross Domain architectures and security controls
Strong understanding of:
RMF (Risk Management Framework)
DISA security requirements and accreditation processes
DCSA Accreditation Standards
Active DoD 8140 (formerly DoD 8570) compliant industry certification (e.g., Security+ CE, CISSP, etc.)
Active DoD 8140 (formerly DoD 8570) compliant environment certification (e.g., minimum Cisco CCNP)
Experience with C2C Requirements:
Network automation (Python, Ansible)
Zero Trust architectures
SIEM integration and log analysis
NetFlow monitoring
KEY COMPETENCIES
Advanced network design and troubleshooting
Security hardening and compliance enforcement
Strong analytical and problem-solving