Secure Infrastructure Specialist

2 weeks ago

mount, India beBeeNetwork Full time

Network Security Engineer RoleThe position of Network Security Engineer is critical to the organization's mission to provide secure and reliable network infrastructure. As a key member of the team, you will be responsible for designing, implementing, and maintaining corporate network infrastructure prioritizing security, reliability, and scalability.Key Responsibilities:Design, implement, and maintain corporate network infrastructure prioritizing security, reliability, and scalability.Lead Cisco ISE deployments and architecture design expert in RADIUS/802.1X authentication, EAP-TLS, TrustSec policies, TACACS, and AAA configuration on NADs.Oversee and tune guest/sponsor portals, BYOD onboarding, and custom portal solutions for secure and flexible network access.Plan, document, and execute Cisco ISE upgrades, patch management, gold star release evaluation, 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), 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.Required Skills and Qualifications: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).Preferred Qualifications:5+ years network/security engineering experience, 3+ years in secure Cisco environments.Certifications: CCNP Security, CCIE, or equivalent.

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    mount, India beBeeInfrastructure Full time

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    mount, India beBeeOperations Full time

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    mount, India beBeeSecurity Full time

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