Red Team Network Engineer

Job Description

Millennium Corporation is hiring a Red Team Network Engineer to work in Baltimore, MD. ALL candidates MUST have an active secret clearance with TS/SCI eligibility to qualify for consideration.

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Responsibilities:

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• Design, implement, and sustain a secure, scalable cyber range network supporting Red Team operations, adversary emulation, penetration testing, malware analysis, cyber research, and operator training.
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• Architect and deploy isolated Layer 2/Layer 3 network infrastructure, including routing, switching, VLANs, segmentation, IP addressing, and high-performance network services.
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• Install, configure, and integrate enterprise networking, compute, virtualization, and storage platforms into a mission-ready cyber range environment.
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• Implement secure network segmentation, firewalls, access controls, and management boundaries to protect operational environments and ensure isolation from external networks.
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• Configure and optimize virtualized infrastructure, storage connectivity, and shared services to support resource-intensive cyber operations and concurrent training environments.
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• Perform infrastructure integration, validation, troubleshooting, and performance optimization to ensure high availability, resiliency, interoperability, and operational readiness.
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• Develop and maintain comprehensive network diagrams, architecture documentation, configuration baselines, installation procedures, and operational support documentation.
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• Conduct infrastructure testing and acceptance activities, verifying compliance with technical, security, and government requirements while resolving identified deficiencies.
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• Collaborate with system administrators, cybersecurity engineers, software developers, cyber operators, and government stakeholders to enhance cyber range capabilities and support mission objectives.
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• Provide technical leadership by recommending infrastructure improvements, supporting future expansion and capacity planning, mentoring junior engineers, and ensuring delivery of a maintainable, mission-ready cyber range.
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Qualifications:

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• ALL candidates MUST have an active secret clearance with TS/SCI eligibility to qualify for consideration.
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• Bachelor's degree in Computer Science, Information Technology, Engineering, or related discipline (or equivalent experience).
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• 8+ years designing enterprise network infrastructure.
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• Experience designing isolated laboratory or cyber range environments.
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• Strong Layer 2/Layer 3 networking experience.
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• Experience with Cisco enterprise switching.
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• Experience implementing VLANs, STP, LACP, routing, and ACLs.
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• Experience configuring enterprise firewalls.
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• Experience deploying fiber infrastructure.
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• Experience integrating enterprise storage.
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• Experience with virtualization networking.
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• Experience producing technical documentation.
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Desired -

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• Experience with VMware, Proxmox, Hyper-V, or KVM.
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• Experience with pfSense or OPNsense.
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• Experience with Active Directory, DNS, DHCP, Windows Server, and Linux.
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• Experience with Docker, Kubernetes, Ansible, Terraform, Git, Python, or PowerShell.
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• Experience with DISA STIGs, RMF, and NIST 800-53.
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• Experience supporting Red Team infrastructure, adversary emulation, malware analysis, or MITRE ATT&CK.
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