Network Security Architect

1 week ago

palakkad, India beBeeNetworkSecurity Full time

Job SummaryThis is a challenging opportunity to design and implement secure network infrastructure prioritizing security, reliability, and scalability.Key Responsibilities:Lead the design and implementation of RADIUS/802.1X authentication, EAP-TLS, TrustSec policies, TACACS, and AAA configuration on network access devices.Oversee and tune guest/sponsor portals, BYOD onboarding, and custom portal solutions for secure and flexible network access.Plan, document, and execute upgrades, patch management, gold star release evaluation, and regulatory compliance for Cisco ISE deployments.Integrate network systems with Azure/Intune, Active Directory, and third-party ecosystems for device identity/posture, application access, and security controls.Manage end-to-end certificate lifecycle for network services, ISE portals, and device authentication (CSR generation, CA signing, binding, backups, expiry management).Administer TACACS for secure device management and policy-based access to network infrastructure.Automate network management with Python, Ansible, and REST APIs; create workflows with Cisco DNA Center (DNAC), automate inventory sync with CMDB (Freshworks, ServiceNow), and ensure API governance.Implement and support SD-Access solutions, including segmentation, policy deployment, and campus fabric operations.Troubleshoot complex wireless and wired network issues, conduct log analysis, resolve authentication failures, and optimize LAN/WAN performance.Collaborate in global network deployments, change management, and incident response—manage project documentation and coordinate across international teams and time zones.RequirementsRequired Skills:Advanced 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 ITSM tools (JIRA, Freshworks/Freshservice, ServiceNow) and cloud integration (Azure, AWS).Proven automation skills using Python, Ansible, REST APIs; experience integrating with ITSM tools (JIRA, Freshworks/Freshservice, ServiceNow) and cloud platforms (Azure, AWS).Strong troubleshooting, documentation, and time zone coordination abilities; effective communicator with cross-functional and global teams.PREFERRED QUALIFICATIONS5+ years network/security engineering experience, 3+ years in secure Cisco environments.Certifications: CCNP Security, CCIE, or equivalent.

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