Senior Cisco ISE Engineer — Enterprise NAC & 802.1X

ManTech; Florida; On-site; USD 120,000 - 180,000; Full time

Job summary

MANTECH seeks a Senior Cisco ISE Network Engineer for our Doral, FL operations. The role focuses on designing and maintaining Cisco ISE infrastructure across multiple sites and ensuring robust authentication and access control policies.

The candidate will integrate ISE with AD, PKI, and security tools, manage RADIUS/TACACS+, and perform system upgrades, patching, and vulnerability remediation while maintaining comprehensive documentation. A Top Secret clearance is required.

Qualifications

• Bachelor’s degree with 5+ years of network engineering experience.
• Or a master's degree with 3+ years of relevant experience.
• Or an associate’s degree with 7+ years of relevant experience.
• Or a high school diploma with 9+ years of relevant experience.
• Proven experience configuring Cisco ISE in an enterprise environment.
• Strong background in 802.1X, RADIUS/TACACS+, and NAC.

Responsibilities

• Designing, deploying, configuring, and maintaining enterprise Cisco ISE across multi-site 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 RBAC, 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 security incidents.
• Maintaining comprehensive network documentation, including architecture diagrams, implementation plans, and SOPs.

Skills

ISE configuration

Enterprise networking

802.1X implementation

RADIUS/TACACS+

Network Access Control

Education

Bachelor’s degree in related field

Master’s degree in related field

Associate’s degree in related field

High school diploma

Job description

MANTECH seeks a Senior Cisco ISE Network Engineer for our Doral, FL operations. The role focuses on designing and maintaining Cisco ISE infrastructure across multiple sites and ensuring robust authentication and access control policies.

The candidate will integrate ISE with AD, PKI, and security tools, manage RADIUS/TACACS+, and perform system upgrades, patching, and vulnerability remediation while maintaining comprehensive documentation. A Top Secret clearance is required.