Network security engineer

Cisco ISE – NAC and TACACS Extensive hands‑on experience managing large‑scale, enterprise‑wide deployments of Cisco Identity Services Engine (ISE) for Network Admission Control (NAC) across diverse endpoint types.Proficient in designing and implementing guest network deployments to address multiple use‑cases and business requirements.Skilled in device profiling, posture assessment, and ensuring compliance for various device categories.Practical knowledge of integrating ISE with third‑party systems for end‑to‑end security posture management.Cisco Secure Email and Centralized Management In‑depth expertise in configuring and managing enterprise mail flows, including integration with Cisco Advanced Malware Protection (AMP) solutions, and email sandboxing systems.Hands‑on experience administering Cisco Secure Email Gateway, optimizing all inbound security features to protect enterprise communications.Proficient in managing email gateway clusters for high availability and scalability.Experienced in Security Management Appliance (SMA) operations and centralized quarantine administration for effective threat containment.Proven experience in managing, upgrading, and migrating Cisco Firepower Threat Defense (FTD) and ASA appliances in complex network environments.Expertise in operating and maintaining Firepower Management Centers (FMC) in high availability (HA) configurations.Skilled in the deployment, management, and tuning of Intrusion Prevention Systems (IPS).Advanced troubleshooting capabilities for resolving complex security incidents and providing expert‑level support.Integration of Cisco Security Appliances with Data Center, Wireless, and Enterprise Systems Strong experience in integrating Cisco security appliances with Active Directory (AD), LDAP, and SAML‑based authentication systems.Demonstrated expertise in integrating Cisco security solutions with Security Information and Event Management (SIEM) platforms, Multi‑Factor Authentication (MFA) systems, and a variety of enterprise monitoring tools.Adept at ensuring seamless interoperability between Cisco security infrastructure and other enterprise IT systems for holistic security coverage.Resource who can work on a highly secure environment, Expert in FW and ISE, and knowledge of other security technologies (SW, DUO, SSE, etc). Candidate will be responsible for supporting network and security solutions for various enterprise customers. Candidate’s expertise in Cisco Identity Services Engine (ISE), Firepower Threat Defense (FTD), Email Security Gateway, Campus Networking (Catalyst) and Data Center Networking (Nexus) platforms will be crucial.Seniority level Mid‑Senior level Employment type Full‑time Job function Information Technology, Science, and Engineering Industries IT Services and IT Consulting, Computer and Network Security, and Data Infrastructure and Analytics Doha, Qatar