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# Sr. Cisco ISE Network Security Engineer

- **Company:** TechSpace Solutions Inc.
- **Location:** Richardson, TX, United States
- **Experience:** Expert
- **Contract:** Contract
- **Skills:** IEEE 802.1X, User Authentication, Python (Programming Language), Network Security, Node.Js, Public Key Infrastructure, Identity Services Engine, Network Access Control, Splunk, Servicenow
- **Published:** November 11, 2026
- **Apply:** https://www.dice.com/job-detail/8393300f-9b50-44b6-bc29-c81013eb78de

## About the Role

* Splunk
 * Service now
 * Python, * 10-15 years of network security engineering experience, with strong recent hands-on Cisco ISE experience.
 * Advanced administration and troubleshooting of Cisco ISE 3.x, including upgrades, patches, configuration changes, node maintenance, and platform health.
 * Experience supporting distributed, multimode ISE deployments across production and nonproduction environments.
 * Strong knowledge of 802.1X, RADIUS, EAPEAPTLS, certificate-based authentication, Network Access Control NAC, and AAA concepts.
 * Strong understanding of Cisco ISE authentication and authorization policies, policy sets, identity sources, endpoint access, and security group-based access controls.
 * Experience creating, modifying, validating, and troubleshooting ISE authorization policies and AD security group mappings.
 * Strong understanding of PKI and certificate lifecycle management, including ISE system server certificates Root and intermediate Certificate Authorities Certificate chains and trust Certificate thumb prints Certificate renewal and replacement EAP authentication certificates Troubleshooting endpoint authentication following certificate changes