Senior Network Engineer — F5, Palo Alto & Cloud Networking

Cognizant; Providence (RI); On-site; USD 99,000 - 115,000; Full time

Benefits offered by this job

Medical/Dental/Vision/Life Insurance

Paid holidays plus Paid Time Off

401(k) plan and contributions

Long-term/Short-term Disability

Paid Parental Leave

Employee Stock Purchase Plan

Job summary

Cognizant Technology Solutions Corporation is seeking an experienced Senior Network Engineer to design, implement, secure, operate, and optimize enterprise data-center, campus, branch, wireless, and hybrid-cloud networks in a large-scale environment. The role requires hands-on expertise with F5 BIG-IP, Palo Alto, Cisco ACI, Cisco Nexus, and Cisco Meraki, plus cloud networking and DDI platforms.

You will lead L3 diagnostics, migrations, and RCAs while collaborating across security, cloud, and

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

DNS/IPAM

Incident management

VLANs/STP/BGP

Hybrid-cloud networking

Education

Bachelor's degree in CS/IT/Engineering or equivalent

Tools

F5 BIG-IP LTM

Palo Alto firewalls/Panorama

Cisco ACI/APIC

Cisco Nexus

Cisco Meraki

Job description

Cognizant Technology Solutions Corporation is seeking an experienced Senior Network Engineer to design, implement, secure, operate, and optimize enterprise data-center, campus, branch, wireless, and hybrid-cloud networks in a large-scale environment. The role requires hands-on expertise with F5 BIG-IP, Palo Alto, Cisco ACI, Cisco Nexus, and Cisco Meraki, plus cloud networking and DDI platforms.

You will lead L3 diagnostics, migrations, and RCAs while collaborating across security, cloud, and