Senior Cisco ISE Network Engineer

MANTECH • Doral, FL

3h • Onsite

About The Position

MANTECH seeks a motivated, career- and customer-oriented Senior Cisco ISE Network Engineer to join its team in Doral, Florida. The role supports enterprise Cisco Identity Services Engine (ISE) infrastructure across multi-site mission networks, including design, deployment, configuration, maintenance, integrations, security policy enforcement, and incident resolution. The position is onsite and requires a current, active Top Secret security clearance.

Requirements

• Bachelor’s degree in Computer Science, Information Technology, Network Engineering, or a related field and 5 or more years of network engineering experience; alternatively, a master’s degree and 3 or more years of relevant experience, 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).
• Must hold a current, active Top Secret security clearance.
• Able to remain stationary 50% of the time and occasionally move around the office to access file cabinets and office machinery.
• Frequently communicates with co-workers, management, and customers, potentially delivering presentations, and must exchange accurate information in these situations.

Nice To Haves

• 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.

Responsibilities

• Design, deploy, configure, and maintain enterprise Cisco ISE infrastructure across multi-site mission networks.
• Develop, implement, and enforce 802.1X authentication, posture assessment, profiling, and guest access policies.
• Integrate Cisco ISE with Active Directory, PKI infrastructure, network access devices, firewalls, and security operations tools.
• Manage RADIUS and TACACS+ protocols to enforce role-based access control, device administration standards, and network segmentation.
• Conduct software upgrades, patch management, performance tuning, and vulnerability remediation across Cisco ISE nodes.
• Monitor system health, analyze network access logs, and resolve complex tier-3 network security and authentication incidents.
• Maintain network documentation, including architecture diagrams, implementation plans, and standard operating procedures.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior