Remote Senior Network Engineer: Enterprise & Cloud

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

Job summary

Cognizant is seeking a Senior Network Engineer to design, implement, secure, operate, and optimize enterprise networks across datacenters, campuses, and cloud interfaces. You will lead L3 incidents, migrations, and upgrades, and collaborate with security, cloud, and server teams to ensure reliability and performance.

The role requires hands-on expertise with F5 BIG-IP, Palo Alto, Cisco ACI/Nexus/Meraki, and cloud networking, with strong debugging and documentation skills.

Qualifications

• Bachelor’s degree in computer science, Information Technology, Engineering, or equivalent practical experience.
• 8+ years of enterprise network engineering experience, including 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 environments.
• Hands-on DNS, DHCP, and 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

TCP/IP

Network incident management

Communication

On-call readiness

Education

Bachelor's degree in Computer Science / IT / Engineering

Tools

F5 BIG-IP LTM

Palo Alto firewalls/Panorama

Cisco ACI/APIC

Cisco Nexus

Cisco Meraki

Infoblox DDI

Wireshark/tcpdump

Job description

Cognizant is seeking a Senior Network Engineer to design, implement, secure, operate, and optimize enterprise networks across datacenters, campuses, and cloud interfaces. You will lead L3 incidents, migrations, and upgrades, and collaborate with security, cloud, and server teams to ensure reliability and performance.

The role requires hands-on expertise with F5 BIG-IP, Palo Alto, Cisco ACI/Nexus/Meraki, and cloud networking, with strong debugging and documentation skills.