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Senior Network Engineer (F5, Palo Alto, Cisco, Cloud, DDI)

Cognizant
Remote
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AI Summary

Designs, secures, and optimizes enterprise networks (datacenter, campus, branch, wireless, hybrid-cloud) with deep expertise in F5 BIG-IP, Palo Alto, Cisco ACI/Nexus/Meraki, cloud networking, and DDI platforms. Leads L3 escalations, incident troubleshooting, migrations, and cross-team collaboration. Requires 8+ years of senior network engineering experience with hands-on production skills in specified technologies.

Key Highlights
Leads L3 escalations and major incident troubleshooting for enterprise networks
Hands-on expertise in F5 BIG-IP, Palo Alto, Cisco ACI/Nexus/Meraki, cloud networking, and DDI platforms
8+ years of senior network engineering experience required

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Key Responsibilities
Design, implement, secure, and optimize enterprise datacenter, campus, branch, wireless, and hybrid-cloud networks
Lead L3 escalations, troubleshoot complex P1/P2 incidents involving routing, switching, wireless, firewalls, load balancing, DNS, DHCP, IPAM, VPN, SD-WAN, and hybrid-cloud connectivity
Prepare and execute implementation, validation, risk, dependency, and rollback plans for production changes
Maintain network diagrams, standards, operating procedures, inventory, capacity plans, lifecycle roadmaps, and disaster-recovery documentation
Administer and troubleshoot F5 BIG-IP, Palo Alto Networks, Cisco ACI, Cisco Nexus, Cisco Meraki, cloud networking, and enterprise DDI platforms
Collaborate with security, cloud, application, server, and architecture teams
Technical Skills Required
Network Engineering (L3 Troubleshooting, TCP/IP, IPv4/IPv6, VPN, QoS, Packet Analysis) F5 BIG-IP (LTM, SSL/TLS, iRules, DNS/GTM, WAF/ASM) Palo Alto Networks (Firewalls, Panorama, App-ID, User-ID, VPN)

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Nice to Have
Experience with F5 DNS/GTM and Advanced WAF/ASM
Experience with Meraki APIs and automation workflows
Experience with Azure Firewall, Application Gateway, AWS Transit Gateway, and PrivateLink

Job Description

Cognizant is seeking a Senior Network Engineer to design, implement, secure, operate, and optimize enterprise datacenter, campus, branch, wireless, and hybrid-cloud networks. This role requires advanced hands-on expertise in F5 BIG-IP, Palo Alto Networks, Cisco ACI, Cisco Nexus, Cisco Meraki, cloud networking, and enterprise DDI platforms.

Key Responsibilities

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Job Overview
Posted Nov 05, 2026
Employment Full-time
Experience Mid-Senior level
Category Networking
Company Cognizant
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