Principal Network Security Engineer

Confidential
📍 Tysons, Virginia, United States 💼 Full-time 🕒 Posted June 12, 2026

Job Description

The Principal Network & Security Engineer is responsible for the management, lifecycle operations, and security of the organization’s Cisco-based networking infrastructure. This individual will be expected to lead the administration, configuration, monitoring, and ongoing optimization of core network systems and platforms, as well as apply best practices in security management. The role combines technical operational management of critical Cisco platforms with broad information security responsibilities across hybrid cloud and on-premises environments


Responsibilities:


The Engineer's primary job responsibilities include:

  • Administer, monitor, and optimize Cisco portfolio infrastructure, including firewalls, identity, and network analytics platforms.

  • Execute routine software/firmware upgrades, patching, and configuration updates on network and security appliances.

  • Ensure effective network segmentation and secure access by conf...
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    Job Details

    • Location Tysons, Virginia
    • Job Type Full-time
    • Category Computer Occupations
    • Posted Date June 12, 2026
    • Application Deadline July 22, 2026