Resource Management Concepts, Inc. (RMC) delivers innovative management and technology solutions to government and commercial clients. We are seeking a Senior Network Engineer to support Navy clients in the Carderock area of Bethesda, Maryland. This is a 100% on-site position. We are seeking a minimum 15 years of dedicated hands-on experience designing, securing, and maintaining enterprise network architectures within Department of Defense (DoD) mission environments. You will serve as the technical authority for secure routed and switched campus networks, cross-domain enclaves, DISA circuits, and tactical-to-strategic integration, ensuring strict alignment with DISA STIGs and NIST cybersecurity controls. Key Responsibilities: • Architect, configure, and maintain high-availability Layer 2/3 local and wide area networks (LAN/WAN/CAN) across RDT&E, NIPR & SIPR. • Lead the implementation and lifecycle management of routing protocols (BGP, OSPF, EIGRP), VRFs, MPLS, VXLAN, and IPsec/DMVPN overlays. • Perform hard security baseline implementation using DISA Security Technical Implementation Guides (STIGs) and Security Requirements Guides (SRGs). • Oversee network device accreditation and support the Risk Management Framework (RMF) assessment and authorization (A&A) process. • Administer, troubleshoot, and harden next-generation firewalls and network access control systems (Cisco ISE / 802.1X). • Interface directly with DISA, military leadership, and prime contractors to resolve circuit escalations, ASI (Authorized Service Interruptions), and mission-critical network incidents. • Mentor mid-level engineers, review engineering change proposals (ECPs), and maintain precise as-built diagrams (Visio) and standard operating procedures. Requirements Required Qualifications • Experience: Minimum of 15 years of progressive network engineering experience, with substantial focus within DoD, intelligence, or defense contractor environments. • Cybersecurity Compliance: Current, unexpired DoD 8570/8140 IAT Level III certification (CISSP, CASP+, GCIH, CISA, CCNP Security, CCSP or GCED). • Active Cisco Certified Network Professional (CCNP Enterprise) or Cisco Certified Internetwork Expert (CCIE). • Security Clearance: Active DoD Top Secret (TS) clearance to start. • Technical Breadth: Deep expertise in enterprise-grade routing/switching platforms (Cisco Catalyst/Nexus). • Compliance & Hardening: Practical experience using SCAP tools, Nessus/ACAS scanning reports, and STIG Viewer to remediate network findings. • Education: Bachelor’s degree in Computer Science, Information Technology, Computer Engineering, or related technical field (substantial relevant DoD experience may substitute). Preferred Qualifications • Hands-on experience with software-defined networking (Catalyst Center, SD-WAN, Cisco ACI). • Working knowledge of cloud transit architectures (AWS GovCloud, Azure Government) connecting via DoD Cloud Access Points (CAP) or BCAP. • Prior experience configuring and maintaining enterprise monitoring platforms. Benefits At RMC, we're committed to your career growth! RMC differentiates itself from other firms through its investment in our employees. We invest our resources to train, certify, educate, and build our employees. RMC can offer you a great place to work with a small company feel and give you the experience, tuition assistance, and certifications that will take your career to the next level. This includes a competitive paid vacation package with 11 paid federal holidays. We also offer high-quality, low-deductible healthcare plans, pet insurance, and a competitive 401K package. Salary at RMC is determined by various factors, including but not limited to location, a candidate's specific combination of education, knowledge, skills, competencies, and experience, as well as contract-specific requirements. The current salary range for this position will be $175,000 to $210,000 (annually). #IND123