Principal Enterprise Network Engineer

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VT-ARC, a technical services and applied research company, has built an organizational culture marked by four primary values:
Teamwork, Integrity, Excellence, and Service. Integral to our success is our staff’s enthusiasm for solving tough problems by working together in teams to get the job done. We foster a culture where every employee’s contribution is valued and performed with integrity while maintaining a fun work environment. VT-ARC strives for excellence in all that is done for our clients, and such achievement is recognized through service/merit awards.

Moreover, we promote a sense of community larger than VT-ARC alone, where staff and institutional resources can be applied in service to our country.

We are proud to be the recipient of the Best Workplace in Defense Award by Emergent Magazine, an honor that recognizes companies with positive cultures that not only impact their people but also make a meaningful difference in the community.

You are a principal-level enterprise network engineer with deep experience designing and integrating Cisco-based WAN and mission communications infrastructures within high-assurance, classified environments. You bring technical authority in enterprise routing architecture, SD-WAN modernization, cross-domain connectivity, and secure enclave integration.

You are comfortable leading complex architecture and integration efforts while remaining hands-on with system design and deployment. You thrive in complex, mission-driven environments where reliability, security, and interoperability are paramount, and you provide technical leadership across WAN, Unified Communications, and network performance engineering teams.

VT-ARC is seeking a Principal Enterprise Network Engineer & Architect to provide technical authority and leadership for Cisco-centric enterprise WAN and communications architectures supporting mission-critical programs within TS/SCI environments.

This role combines enterprise architecture leadership with hands‑on engineering expertise, ensuring routing, SD‑WAN, and secure communications infrastructures are resilient, interoperable, and aligned with mission integration objectives.

The Principal Engineer will guide WAN, Unified Communications, and network performance engineers while actively contributing to system stand‑up, modernization efforts, and cross-domain integration within classified enterprise environments.

Active Top Secret/SCI clearance is required.

This position is contingent based upon contract award

• Architect and modernize enterprise Cisco-based WAN and secure communications infrastructures.
• Provide technical leadership for enterprise routing architecture and SD-WAN modernization initiatives.
• Develop cross-domain and multi-enclave network integration strategies.
• Lead design and deployment of enterprise routing protocols (BGP, OSPF, MPLS) and advanced QoS frameworks.
• Provide architectural oversight of unified communications transport integration.
• Ensure compliance with DoD network standards, STIGs, RMF, and interoperability requirements.
• Conduct risk-informed architecture assessments for enterprise communications infrastructures.
• Collaborate with WAN, UC, cybersecurity, and network performance engineers to ensure end-to-end communications integration.
• Lead proof-of-concept demonstrations, architecture validation, and enterprise integration pilots.
• Mentor engineering staff and establish architectural standards and best practices across the program.

• Bachelor’s degree in Computer Science, Electrical Engineering, Information Technology, or related technical discipline, or equivalent professional experience in enterprise network engineering.
• 10+ years of progressive enterprise network engineering experience, including leadership of architecture or modernization efforts in classified environments.
• Demonstrated…