Network Security Engineer

Arena Technical Resources, LLC (ATR); Alexandria (VA); Hybrid; USD 100,000 - 130,000; Full time

Job summary

A leading technology resource provider is looking for a Sr. Network Security Engineer to advance your career while impacting national security in cyberspace. In this hybrid role based in Alexandria, VA, you will lead the design and implementation of network access control solutions and work with various security teams. Candidates should have at least 5 years of experience in network security, expertise in Cisco ISE, and strong troubleshooting skills. Relevant certifications are preferred.

Qualifications

• 5+ years of experience in network engineering and security focused on access control.
• Expert in Cisco Identity Services Engine (ISE) configuration.
• Strong understanding of network security principles.

Responsibilities

• Lead design and deployment of Cisco ISE for network access control.
• Manage and implement network access policies for wired and wireless authentication.
• Troubleshoot issues related to network access and compliance.

Skills

Cisco Identity Services Engine (ISE)

Cisco Secure Client

802.1X authentication

Network security principles

Troubleshooting

Documentation skills

Problem-solving

Education

Bachelor's degree in Computer Science or related field

Tools

Riverbed Profiler

Job description

Job Title: Sr. Network Security Engineer

Location: Alexandria, VA - Hybrid Remote

Eligibility: Candidate must be eligible to be employed in the United States

Job Description

Advance your career while impacting our national security in cyber as a Sr. Network Security Engineer. Here, technologists have many paths to grow a meaningful career supporting cyber missions and operations across the federal government.

Meaningful Work and Personal Impact

As a Network Security Engineer Senior, the work you’ll do will be impactful to the mission of the customer.

Responsibilities

• Lead the design, configuration, and deployment of Cisco Identity Services Engine (ISE) for network access control.
• Manage and implement network access policies using Cisco Secure Client and Microsoft native supplicants for both wired and wireless authentication.
• Test and deploy posture assessment for endpoints to ensure compliance with security policies.
• Troubleshoot and resolve network access issues related to 802.1X authentication and posture assessment.
• Configure and manage network devices to enforce access control policies.
• Work closely with the network and security teams to ensure seamless integration of network access control solutions.
• Develop and maintain detailed documentation of configurations, processes, and procedures.
• Provide training and knowledge transfer to internal teams as needed.
• Stay up-to-date with the latest industry trends and technologies related to network access control and security.

Qualifications

• Bachelor’s degree in Computer Science, Information Technology, or a related field.
• Minimum of 5 years of experience in network engineering and security, with a focus on network access control.
• Expertise in configuring and managing Cisco Identity Services Engine (ISE).
• Proficiency in using Cisco Secure Client and Microsoft native supplicants for 802.1X authentication.
• Experience with both wired and wireless network authentication and posture assessment.
• Strong understanding of network security principles and best practices.
• Excellent troubleshooting and problem‑solving skills.
• Strong communication and documentation skills.
• Relevant certifications (e.g., CCNP, CCIE, JNCIP, JNCIE or other Cisco and Juniper security certifications) are preferred.

Preferred Skills

• Experience with other network access control solutions.
• Familiarity with endpoint security and compliance management.
• Knowledge of scripting and automation tools.
• Experience with Riverbed Profiler and analyzing NetFlow data is a plus.