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Network Engineer with Security Clearance

22nd Century Technologies, Inc.Fort McNair, DC🇺🇸United StatesPosted Sep 8, 2026

Quick Overview

Seniority
Mid Senior
Employment type
Employee
Work mode
On Site
Location
Fort McNair, DC, United States
Posted
3 weeks ago
Active DirectoryDNS

Job Description

Job Title: Sr.

Network Engineer
Job Location: Washington DC Certifications: Active CCNA or CCNP and Active CompTIA Sec+
Clearance: Secret or above

Key Responsibilities: • Design, implement, and manage network infrastructure, focusing on security and access control.

  • Configure and troubleshoot Cisco Identity Services Engine (ISE) solutions for network access control, authentication, and authorization.
  • Integrate Cisco ISE with Active Directory, RADIUS, and other network systems.
  • Develop and implement network security policies, ensuring compliance with organizational standards.
  • Monitor and analyze network performance, identifying and resolving issues promptly.
  • Collaborate with IT teams to ensure seamless integration with other network systems and applications.
  • Stay up-to-date with industry trends, new technologies, and Cisco product updates.

Requirements: • 8-10 years of experience in network engineering, with a focus on security and access control.

  • Strong knowledge of Cisco ISE, including configuration, troubleshooting, and integration.
  • Experience with network protocols (e.g., RADIUS, TACACS+, DNS, DHCP).
  • Familiarity with network security principles, including AAA (Authentication, Authorization, and Accounting).
  • Strong problem-solving skills and attention to detail.
  • Excellent communication and collaboration skills. Why Join Us at NDU?
  • Onsite Role: The role requires working full-time onsite at National Defense University in Washington DC, contributing directly to the institution's network security efforts.
  • Mission-Critical Role: Play an integral part in securing the infrastructure of the National Defense University, supporting national security education.
  • Career Growth: Enjoy continuous training opportunities to further develop your skills.
  • Competitive Salary and Benefits: Receive a competitive salary, health benefits, and other perks that support your career and well-being.

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