Expert Network Security Specialist

2 days ago

rajahmundry, India beBeeSecurity Full time

Network Security EngineerThis is a challenging role that involves designing, implementing and maintaining corporate network infrastructure prioritizing security, reliability and scalability.We are seeking an experienced Network Security Engineer to lead Cisco ISE deployments and architecture design.The ideal candidate will have expertise in RADIUS/802.1X authentication, EAP-TLS, TrustSec policies, TACACS and AAA configuration on NADs.Key responsibilities include overseeing and tuning guest/sponsor portals, BYOD onboarding and custom portal solutions for secure and flexible network access.Plan, document and execute Cisco ISE upgrades, patch management and regulatory compliance.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) and automate inventory sync with CMDB (Freshworks, ServiceNow).Implement and support SD-Access solutions, including segmentation, policy deployment and campus fabric operations.Required SkillsAdvanced Proficiency: 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 and experience integrating with ITSM tools and cloud platforms.Preferred Qualifications5+ years network/security engineering experience, 3+ years in secure Cisco environments.Certifications: CCNP Security, CCIE or equivalent.

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