Senior Network Engineer - Remote, Cloud & Security

Cognizant Technology Solutions Corporation; Charleston (WV); Remote; USD 99,000 - 116,000; Full time

Job summary

Cognizant Technology Solutions Corporation is seeking a Senior Network Engineer to design, implement, secure, operate, and optimize enterprise networks across datacenters, campuses, and hybrid-cloud environments. You will lead incidents, migrations, and lifecycle upgrades while collaborating with security, cloud, app, server, and architecture teams.

Responsibilities include managing F5 BIG-IP LTM, Palo Alto firewalls/Panorama, Cisco ACI/Nexus/Meraki, cloud networking, and Infoblox‑based DDI.

Qualifications

• Bachelor’s degree in computer science, information technology, engineering, or equivalent practical experience.
• 8+ years of enterprise network engineering experience, with at least 3 years in a senior or L3 role.
• Advanced knowledge of TCP/IP, IPv4/IPv6, VLANs, STP, vPC, HSRP/VRRP, OSPF, BGP, VPN, QoS, NAT, wireless networking, and packet analysis.
• Hands-on production experience with F5 BIG-IP LTM, Palo Alto firewalls/Panorama, Cisco ACI/APIC, Cisco Nexus, and Cisco Meraki.
• Practical Azure and/or AWS networking experience, including private connectivity to on-premises.
• Hands-on DNS, DHCP, IPAM experience with Infoblox or a comparable enterprise DDI solution.
• Experience with Wireshark, tcpdump, network monitoring, ITIL incident/problem/change processes, and technical documentation.
• Strong communication skills and the ability to coordinate high-severity incidents and complex changes.

Responsibilities

• Own complex P1/P2 incidents involving routing, switching, wireless, firewalls, load balancing, DNS, DHCP, IPAM, VPN, SD-WAN, and hybrid-cloud connectivity.
• Lead troubleshooting bridges, analyze packet captures and telemetry, restore service, document root cause, and implement permanent corrective actions.
• Prepare and execute implementation, validation, risk, dependency, and rollback plans for production changes and maintenance windows.
• Maintain network diagrams, standards, operating procedures, inventory, capacity plans, lifecycle roadmaps, and disaster-recovery documentation.
• Participate in on-call support, vulnerability remediation, compliance reviews, and vendor escalation activities.

Skills

F5 BIG-IP LTM

Palo Alto Networks

Cisco ACI

Cisco Nexus

Cisco Meraki

Cloud networking

DNS/DHCP/IPAM

Education

Bachelor’s degree in Computer Science, Information Technology, Engineering, or equivalent practical experience

Tools

Infoblox

Job description

Cognizant Technology Solutions Corporation is seeking a Senior Network Engineer to design, implement, secure, operate, and optimize enterprise networks across datacenters, campuses, and hybrid-cloud environments. You will lead incidents, migrations, and lifecycle upgrades while collaborating with security, cloud, app, server, and architecture teams.

Responsibilities include managing F5 BIG-IP LTM, Palo Alto firewalls/Panorama, Cisco ACI/Nexus/Meraki, cloud networking, and Infoblox‑based DDI.