Senior Network Engineer

Salary: $150,000 - 200,000 per year Requirements:Active Secret clearance is a necessity. Security+ or a comparable DoD 8570/8140 baseline certification is required. Proven experience in supporting Department of Defense network environments, including classified networks. Background in conducting or assisting with classified network builds, migrations, or secure modernization efforts. Comprehensive understanding of routing, switching, VLANs, trunking, subnetting, ACLs, firewalls, VPNs, network segmentation, and enterprise network troubleshooting. Familiarity with Cisco routers, switches, and associated technologies. Experience with applying, reviewing, or fixing DISA STIGs for network devices. Involvement in supporting CORA, cybersecurity inspections, audits, compliance reviews, or technical readiness assessments. Proficient in creating accurate and professional network documentation for customer settings. Preferred CCNA or higher certification; desirable experience with Cisco ISE, Palo Alto firewalls, ACAS/Nessus, STIG Viewer, RMF, or DoD compliance workflows. Responsibilities:Design, build, configure, and maintain both classified and unclassified Department of Defense network environments. Carry out network assessments, audits, and technical reviews in support of Cyber Operational Readiness Assessments (CORA) and other inspection or readiness initiatives. Validate and remediate network device configurations to ensure adherence to DISA STIGs, C2C standards, and customer security requirements. Set up, troubleshoot, and oversee Cisco routing and switching infrastructure across various customer sites. Administer Cisco ISE, focusing on authentication, authorization, network access control, TACACS+, RADIUS, and related policy enforcement tasks. Configure, evaluate, and debug Palo Alto firewall policies, zones, NAT rules, access controls, and security setups. Detect network vulnerabilities, configuration shortfalls, documentation gaps, and operational risks; suggest and implement corrective measures. Evaluate network infrastructure and devices against DISA Security Technical Implementation Guides (STIGs) and assist with NIST SP 800-53 security control assessments. Produce and maintain thorough network documentation, covering diagrams, IP address plans, port maps, device inventories, rack layouts, configuration baselines, and site-specific procedures. Collaborate directly with government clients, cybersecurity teams, system administrators, and other technical stakeholders to resolve network and compliance challenges. Facilitate change management, configuration management, vulnerability remediation, and technical reporting about network infrastructure. Technologies:Cisco Firewall SupportNATNetwork Security More:We are looking for a Senior Network Engineer to play a vital role in supporting our Department of Defense customers with classified network builds, cybersecurity preparedness, network audits, and compliance-focused engineering. This role involves secure network design, implementation, assessment, enhancement, troubleshooting, and comprehensive documentation across various classified and unclassified environments. The position may require up to 50% travel, and we prefer candidates located in, or willing to relocate to, the MA, RI, CT area. We offer competitive pay ranging from $150,000.00 to $200,000.00 per year along with benefits such as a 401(k), matching contributions, and paid time off.last updated 38 week of 2026