Senior DoD Network Engineer—RMF & C2C Expert (Onsite)

Astrion; Columbia (MD); On-site; USD 145,000 - 165,000; Full time

Job summary

Astrion is seeking a Senior Network Engineer to design, implement, secure, and maintain mission-critical DoD/DoW networks in a Columbia, MD onsite environment. The role requires TS/SCI preferred and extensive experience with RMF, STIG, and cross-domain architectures.

Responsibilities include building secure network architectures, achieving 802.1x compliance, and supporting ATO processes across classified networks. Strong emphasis on documentation and specialist security controls.

Qualifications

• Active Top Secret clearance.
• Bachelor's degree in Network Engineering, Computer Science, or related field (or equivalent experience).
• 8+ years of network engineering experience in DoD/DoW or classified environments.
• Deep expertise in Cisco routing & switching (BGP, OSPF, EIGRP, VLANs, MPLS).
• Fortinet solutions (FortiGate, FortiOS, VPNs, security fabric).
• Experience implementing DISA STIG compliance.
• Experience with C2C/Cross Domain architectures and security controls.

Responsibilities

• Design, implement, and maintain secure network architectures using Cisco and Fortinet solutions.
• Design, implement, and maintain 802.1x compliance platform.
• Engineer and support classified and unclassified network environments (e.g., MDA CNET, NIPR, SIPR, JWICS).
• Ensure compliance with DoD STIGs and cybersecurity policies.
• Implement and maintain CDS and C2C architectures.
• Perform network hardening, vulnerability remediation, and RMF-based monitoring.

Skills

Advanced network design

Security compliance

Analytical problem-solving

Documentation & communication

Education

Bachelor's degree in Network Engineering or related field

Tools

Cisco routing & switching

Fortinet FortiGate

ISE (Identity Services Engine)

Cross Domain Solutions (CDS)

Job description

Astrion is seeking a Senior Network Engineer to design, implement, secure, and maintain mission-critical DoD/DoW networks in a Columbia, MD onsite environment. The role requires TS/SCI preferred and extensive experience with RMF, STIG, and cross-domain architectures.

Responsibilities include building secure network architectures, achieving 802.1x compliance, and supporting ATO processes across classified networks. Strong emphasis on documentation and specialist security controls.