Chief Network Security Architect

2 weeks ago

kozhikode, India beBeeCybersecurity Full time

As a seasoned cybersecurity expert, you will be responsible for designing, implementing, and maintaining corporate network infrastructure with a strong emphasis on security, reliability, and scalability.Leads deployments and architecture design for Cisco ISE, focusing on RADIUS/802.1X authentication, EAP-TLS, TrustSec policies, TACACS, and AAA configuration on Network Access Devices (NADs).Oversees guest/sponsor portals, Bring Your Own Device (BYOD) onboarding, and custom portal solutions to provide secure and flexible network access.Plans, documents, and executes upgrades, patch management, gold star release evaluation, and regulatory compliance for Cisco ISE.Integrates network systems with cloud platforms, such as Azure/Intune, Active Directory, and third-party ecosystems, to facilitate device identity/posture, application access, and security controls.Manages end-to-end certificate lifecycle for network services, ISE portals, and device authentication, including CSR generation, CA signing, binding, backups, and expiry management.Administers TACACS for secure device management and policy-based access to network infrastructure.Automates network management using Python, Ansible, and REST APIs, creating workflows with Cisco DNA Center (DNAC) and ensuring API governance.Implements and supports Software-Defined Access (SD-Access) solutions, encompassing segmentation, policy deployment, and campus fabric operations.Troubleshoots complex wireless and wired network issues, conducts log analysis, resolves authentication failures, and optimizes LAN/WAN performance.Collaborates in global network deployments, change management, and incident response, managing project documentation and coordinating across international teams and time zones.Required Skills and QualificationsAdvanced proficiency in Cisco ISE administration, DNA Center, SD-Access, LAN/WAN, wireless networks, and 802.1X protocols.Deep understanding of RADIUS, EAP-TLS, TrustSec, TACACS, AAA policies, and NAD configuration.Hands-on experience with ISE portals, certificate management, upgrade procedures, regulatory compliance, and security patching.Familiarity with IT Service Management (ITSM) tools, such as JIRA, Freshworks/Freshservice, and ServiceNow, and cloud integration, including Azure and AWS.Proven automation skills using Python, Ansible, REST APIs; experience integrating with ITSM tools and cloud platforms.Strong troubleshooting, documentation, and time zone coordination abilities; effective communication with cross-functional and global teams.BenefitsThis role offers opportunities for growth and development in a fast-paced, dynamic environment.,

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