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# Senior Cisco ISE Network Engineer

- **Company:** Mantech International Corporation
- **Location:** Miami, FL, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Microsoft Access, IEEE 802.1X, Access Network, Active Directory, User Authentication, Profiling, Cyber Security, System Configuration, Internetworking, Network Security, Routing, Network Segmentation, Performance Tuning, Public Key Infrastructure, Role-Based Access Control, SAP Sales and Distribution, Security Information and Event Management, Systems Integration, Software Vulnerability Management, Identity Services Engine, Network Access Control, Firewalls (Computer Science), Information Technology, Patch Management, Firepower, TACACS+ Protocol, Cisco
- **Published:** November 7, 2026
- **Apply:** https://www.miamigigs.com/job.asp?id=3501823191&tx=FP6158FFI&pt=1&aff=0B19D771-A501-4A5E-8338-2A822B784D54&utm_source=Job%20Feed&utm_medium=textkernel&utm_campaign=DE&utm_term=0B19D771-A501-4A5E-8338-2A822B784D54

## About the Role

* Bachelor's degree in Computer Science, Information Technology, Network Engineering, or a related field with 5+ years of experience in network engineering.
 * OR a master's degree and 3+ or more years of relevant experience
 * OR an associate's degree and 7+ or more years of relevant experience
 * OR a high school diploma and 9+ or more years of relevant experience
 * Proven experience configuring, administering, and troubleshooting Cisco Identity Services Engine (ISE) in an enterprise environment. Strong background in enterprise routing, switching, 802.1X authentication, RADIUS/TACACS+ protocols, and network access control (NAC)., * Cisco Certified Network Professional (CCNP Security) or Cisco Certified Internetwork Expert (CCIE) certification.
 * Experience integrating Cisco ISE with Cisco DNA Center, SD-Access, Firepower, or SIEM platforms.
 * Prior experience supporting U.S. Military Command operations or Department of Defense enterprise network environments.

Clearance Requirements:

 * Must hold a current/active top secret security clearance.

Physical Requirements:

 * Must be able to remain in a stationary position 50%.
 * Needs to occasionally move about inside the office to access file cabinets, office machinery, etc.
 * Frequently communicates with co-workers, management, and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations.

## Description

* Designing, deploying, configuring, and maintaining enterprise Cisco Identity Services Engine (ISE) infrastructure across multi-site mission networks.
 * Developing, implementing, and enforcing 802.1X authentication, posture assessment, profiling, and guest access policies.
 * Integrating Cisco ISE with Active Directory, PKI infrastructure, network access devices, firewalls, and security operations tools.
 * Managing RADIUS and TACACS+ protocols to enforce role-based access control, device administration standards, and network segmentation.
 * Conducting software upgrades, patch management, performance tuning, and vulnerability remediation across Cisco ISE nodes.
 * Monitoring system health, analyzing network access logs, and resolving complex tier-3 network security and authentication incidents.
 * Maintaining comprehensive network documentation, including architecture diagrams, implementation plans, and standard operating procedures.