Haystack
← Back to Jobs
Employee
Technology
2C

Network Engineer with Security Clearance

22nd Century Technologies, Inc.Fort McNair, DC🇺🇸United StatesPosted 27 Aug 2026

Quick Overview

Seniority
Mid Senior
Employment type
Employee
Work mode
On Site
Location
Fort McNair, DC, United States
Posted
Yesterday
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.

Similar jobs