Role overview
Administer enterprise network infrastructure and connectivity services, ensuring secure, resilient, compliant, and high-performing network operations across LAN, WAN, WLAN, VPN, NAC, and network security components.
Key responsibilities
• Operate and support enterprise LAN, WAN, WLAN, VPN, internet connectivity, and network service infrastructure.
• Configure, administer, and troubleshoot Cisco routing, switching, wireless, and network access control environments.
• Manage Cisco ISE, 802.1X authentication, NAC policies, device onboarding, certificate-based access, MAB, and TACACS+ services.
• Administer DNS, DHCP, IP Address Management (IPAM), NTP, and core network services.
• Support network security technologies including firewalls, VPN gateways, web security appliances, and network segmentation.
• Monitor network availability, latency, capacity, utilisation, performance, and service health using enterprise monitoring platforms.
• Execute network configuration changes, standard service requests, firmware upgrades, patching, and lifecycle activities through approved change processes.
• Troubleshoot routing, switching, wireless, authentication, firewall, VPN, and performance-related incidents across enterprise environments.
• Support implementation and operation of Cisco DNA Center, network automation, software-defined networking, and infrastructure management platforms where applicable.
• Collaborate with security, server, cloud, and endpoint teams to ensure integrated service delivery and incident resolution.
• Automate operational tasks using scripting and network automation tools where authorised.
• Maintain network diagrams, SOPs, knowledge articles, operational runbooks, audit evidence, and configuration standards.
• Handle incidents, requests, changes, problem records, compliance activities, and documentation through ITSM platforms.
Core skills and platforms
• Cisco Routing and Switching
• LAN, WAN, WLAN and VPN Technologies
• Cisco ISE, 802.1X and NAC
• Cisco DNA Center
• DNS, DHCP, IPAM and Core Network Services
• Firewall and Network Security Technologies
• Network Monitoring and Performance Management
• ServiceNow ITSM and ITIL Processes
• PowerShell, Python or Network Automation Tools
Preferred certifications
• Cisco CCNA Enterprise
• Cisco CCNP Enterprise (preferred)
• Cisco Certified Specialist - Enterprise Network Infrastructure
• ITIL Foundation
• Network Security Certification (preferred)
Delivery expectations
• Strong ownership of network operational stability and service availability.
• Analytical troubleshooting skills across complex enterprise network environments.
• Ability to work within incident, change, security, audit, and compliance frameworks.
• Effective stakeholder communication, documentation discipline, and operational reporting capability.
• Participation in agreed support coverage, transition activities, knowledge transfer, automation initiatives, and continual service improvement programmes.
About Cognizant:
Cognizant (Nasdaq: CTSH) is an AI Builder and technology services provider, bridging the gap between AI investment and enterprise value by building full-stack AI solutions for our clients. Our deep industry, process and engineering expertise enables us to build an organization’s unique context into technology systems that amplify human potential, drive tangible outcomes and keep global enterprises ahead in a fast-changing world. See how at cognizant.ai or @cognizant.
Additional employment information
Compensation information is accurate as of the date of this posting. Cognizant reserves the right to modify this information at any time, subject to applicable law.
Applicants may be required to attend interviews in person or by video conference. In addition, candidates may be required to present their current state or government issued ID during each interview.
Cognizant is an equal opportunity employer. Your application and candidacy will not be considered based on race, color, sex, religion, creed, sexual orientation, gender identity, national origin, disability, genetic information, pregnancy, veteran status or any other characteristic protected by federal, state or local laws.
