Secure Network Architecture Specialist

1 week ago

alwar, India beBeeNetworkEngineer Full time

Network Engineer RoleJob Description:A Senior Network Security Engineer is required to design, implement and maintain secure network infrastructure prioritizing reliability, scalability and security. The ideal candidate will have hands-on experience with Cisco ISE administration, DNA Center, SD-Access and LAN/WAN networks.Key Responsibilities:Design and implement corporate network infrastructure that meets business requirements for security, reliability and scalability.Lead deployments of Cisco ISE architecture, designing RADIUS/802.1X authentication, EAP-TLS, TrustSec policies and TACACS on NADs.Manage guest/sponsor portals, BYOD onboarding and custom portal solutions for secure and flexible network access.Plan and execute upgrades, patch management, gold star release evaluation and regulatory compliance for Cisco ISE.Integrate network systems with Azure, Active Directory and third-party ecosystems for device identity/posture, application access and security controls.Manage certificate lifecycle for network services, ISE portals and device authentication (CSR generation, CA signing, binding, backups and 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 and automate inventory sync with CMDB.Implement and support SD-Access solutions including segmentation, policy deployment and campus fabric operations.Troubleshoot complex wireless and wired network issues, conduct log analysis and resolve authentication failures.Collaborate in global network deployments, change management and incident response managing project documentation and coordinating across international teams and time zones.Engage with InfoSec and IT operations for policy compliance, risk mitigation and collaborative integration projects.Required Skills and Qualifications:Advanced proficiency in Cisco ISE administration, DNA Center, SD-Access, LAN/WAN 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 and security patching.Familiarity with ITSM tools such as JIRA, Freshworks/Freshservice and ServiceNow and cloud integration with Azure and AWS.Proven automation skills using Python, Ansible and REST APIs; experience integrating with ITSM tools and cloud platforms.Strong troubleshooting, documentation and time zone coordination abilities; effective communicator with cross-functional and global teams.5+ years network/security engineering experience, 3+ years in secure Cisco environments.Certifications: CCNP Security, CCIE or equivalent.

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