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Senior Cyber Security Engineer (Cisco ISE / Network Security)

Job

Epiphany Resource Group

Chantilly, VA (In Person)

$197,500 Salary, Full-Time

Posted 5 days ago (Updated 4 days ago) • Actively hiring

Expires 7/22/2026

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Job Description

Job Requirements Chantilly, VA Top Secret/SCI CI Polygraph Mid Level Career (5+ yrs experience) $185,000 - $210,000 Job Description Senior Cyber Security Engineer (Cisco ISE / Network Security) -
TS/SCI CI Poly Required Location:
Chantilly, VA Employment Type:
Full-Time Security Clearance:
Active TS/SCI with CI Polygraph Required Position Overview We are seeking a Senior Cyber Security Engineer with expertise in network security, access control technologies, and Cisco Identity Services Engine (ISE) to support a highly secure enterprise environment. This position plays a critical role in protecting enterprise infrastructure by implementing and maintaining advanced network access controls, security policies, and cybersecurity solutions. The ideal candidate will possess a strong background in network security engineering, Cisco technologies, cybersecurity operations, and enterprise security architecture. Key Responsibilities
  • Design, implement, and maintain enterprise network security solutions.
  • Configure, administer, and optimize Cisco Identity Services Engine (ISE) environments.
  • Support Network Access Control (NAC) initiatives and policy enforcement.
  • Analyze network traffic and security events to identify threats and vulnerabilities.
  • Perform vulnerability assessments and security analysis using industry-standard tools.
  • Support cybersecurity compliance requirements and security engineering initiatives.
  • Collaborate with infrastructure, networking, and cybersecurity teams to implement secure solutions.
  • Troubleshoot and resolve complex network security and access control issues.
  • Develop and maintain technical documentation, architecture diagrams, and operational procedures.
  • Support continuous monitoring, incident response, and security operations activities. Required Qualifications
  • Bachelor's degree and 5+ years of cybersecurity or network security engineering experience (or additional relevant experience in lieu of degree).
  • Hands-on experience administering and supporting Cisco Identity Services Engine (ISE).
  • Experience with Network Access Control (NAC) technologies and 802.1X authentication.
  • Strong understanding of TCP/IP networking, routing, switching, and network security principles.
  • Experience with firewalls, intrusion prevention systems (IPS), and enterprise security technologies.
  • Experience performing vulnerability assessments and security analysis.
  • Familiarity with Linux and Windows operating systems.
  • Strong troubleshooting and analytical skills.
  • DoD 8570 IAT Level II certification (Security+ or equivalent) or ability to obtain within six months. Preferred Qualifications
  • Experience supporting Comply-to-Connect (C2C) initiatives.
  • Experience with Cisco networking technologies and enterprise architecture.
  • Experience with Nessus, Nmap, and vulnerability management programs.
  • Knowledge of Zero Trust principles and network segmentation strategies.
  • Experience supporting classified environments.
  • Cisco certifications (CCNA, CCNP, or related certifications).
Clearance Requirement Active TS/SCI clearance with CI Polygraph is required. Why Apply? This position offers the opportunity to support advanced cybersecurity and network security initiatives within a mission-focused environment while working with enterprise-scale infrastructure, modern security technologies, and critical national security programs.
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