Network Architect Engineer - Springfield, VA Security Clearance

Network Architect Engineer 5 – Springfield, VA (Security Clearance)

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M.C. Dean is Building Intelligence. We design, build, operate, and maintain cyber‑physical solutions for the nation’s most mission‑critical facilities, secure environments, complex infrastructure, and global enterprises. With over 7,000 employees, our capabilities span electrical, electronic security, telecommunications, life safety, automation and controls, audiovisual, and IT systems. Headquarters in Tysons, Virginia, we deliver resilient, secure, and innovative power and technology solutions through engineering expertise and smart systems integration.

Our people are passionate about engineering innovation that improves lives and drives impactful change. Guided by our core values – agility, expertise, and trust – we foster a collaborative and forward‑thinking work environment. We are committed to building the next generation of technical leaders in electrical, engineering, and cybersecurity industries.

We are seeking a highly skilled Network Architect 5 to provide technical subject‑matter expertise for a multi‑enclave enterprise network. The successful candidate will be a motivated leader with proven experience as a Network Team Lead, capable of driving complex network initiatives and delivering advanced solutions that optimize and expand a growing infrastructure. This role requires a combination of deep technical proficiency, strategic leadership, and hands‑on problem‑solving to ensure high performance, reliability, and scalability across all network systems.

• Diagnose and resolve network outages and system failures across multiple enclaves.
• Troubleshoot and debug complex network problems and recommend operational efficiencies and improvements.
• Perform advanced log analysis to identify and remediate root causes of network and application issues.
• Lead network performance tuning and optimization efforts to enhance efficiency and resilience.
• Provide mentorship and technical guidance to Tier 1 and Tier 2 staff, fostering team growth and capability.
• Serve as team lead for multiple network projects, ensuring technical excellence, coordination, and timely delivery.
• Develop, update, and improve network documentation, standard operating procedures, and Tactics, Techniques, and Procedures (TTPs).
• Deliver technical expertise to optimize and expand the organization’s multi‑enclave enterprise network infrastructure.

• Clearance: U.S. Citizenship, eligible for a government security investigation; active TS/SCI clearance required.
• Bachelor’s Degree in Engineering or a related STEM discipline and at least 10 years of progressive applicable experience.
• At least 3+ years in a leadership role within enterprise network engineering.
• Expert‑level knowledge of routing, switching, firewalls, VPNs, and multi‑enclave architectures.
• Strong experience with network performance tuning, troubleshooting, and root cause analysis.
• Proficiency in network security principles, including segmentation and compliance standards.
• Hands‑on experience with Cisco, Juniper, or equivalent enterprise‑grade networking platforms.
• Familiarity with automation tools and scripting (Python, Ansible) for network optimization.

• Knowledge of layer 1 technologies and their capabilities and limitations.
• Experience deploying and managing enterprise network security appliances.
• Understanding of WAN/Internet transport and routing technologies such as BGP, MPLS, and Software‑Defined Networking.
• Experience deploying and maintaining a multi‑enclave network architecture.
• Understanding of security designs for network solutions and implementing security requirements for network devices.
• Experience with network, security, and traffic management across a multi‑site enterprise environment.
• Previous implementation of cloud network technologies such as Express Route, Azure Virtual Networks, or cloud orchestration and management.
• Experience testing and troubleshooting, reading network and connectivity schematics and…