Chief Network Infrastructure Specialist

5 days ago

erode, India beBeeNetwork Full time

Network Security EngineerKey Responsibilities:Design and implement secure network infrastructure prioritizing reliability, scalability, and data protection.Lead deployments of Cisco ISE and architecture design expert in RADIUS/802.1X authentication, EAP-TLS, TrustSec policies, TACACS, and AAA configuration on Network Access Devices (NADs).Oversee and optimize guest/sponsor portals, BYOD onboarding, and custom portal solutions for secure network access.Plan, document, and execute Cisco ISE upgrades, patch management, gold star release evaluation, and regulatory compliance ensuring adherence to security standards.Integrate network systems with Azure, Active Directory, and third-party ecosystems for device identity/posture, application access, and security controls.Manage end-to-end certificate lifecycle for network services, including CSR generation, CA signing, binding, backups, expiry management.Administer TACACS for secure device management and policy-based access to network infrastructure.Automate network management using Python, Ansible, and REST APIs; create workflows with Cisco DNA Center and automate inventory sync with CMDB tools.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.Engage with InfoSec and IT operations for policy compliance, risk mitigation, and collaborative integration projects.Required 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 and cloud integration.Proven automation skills using Python, Ansible, REST APIs.Strong troubleshooting, documentation, and time zone coordination abilities; effective communicator with cross-functional and global teams.Preferred Qualifications:5+ years network/security engineering experience in secure environments.Certifications: CCNP Security, CCIE, or equivalent.

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