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Added 8 mins ago
Enterprise Security Systems, Senior Engineer II
Sempra
San Diego, CA
…architectures, engineering standards, technical specifications, integration strategies, and technology roadmaps supporting access control, video surveillance, intrusion detection, alarm…
Added 10 mins ago
OT Security Platform Engineer - Dragos
Cognizant
Jefferson City, MO
We are seeking an experienced OT Security Platform Engineer / Technical Lead to own and operate the Dragos security monitoring platform across a global manufacturing environment. This is a…
Added 11 mins ago
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…and provides a foundation for growth into the AI Operations Engineer…
Added 14 mins ago
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Added 28 mins ago
Senior Systems Engineer (IT Infrastructure)
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Added 35 mins ago
System Protection Engineer, Mid-Career
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This hybrid Power Systems Protection Engineer position is based at our Wendell, NC headquarters for Siemens Electrification & Automation. Local candidates are encouraged to apply. Located…
Added 35 mins ago
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Added 35 mins ago
EG
Cloud Engineer
Eliassen Group
Raleigh, NC
- $70 to $88 USD / hour
Our client seeks a senior Cloud Engineer to own and stabilize a legacy GCP and Azure footprint while assisting with conversions and decommissioning. The role will support automation efforts…
Added 41 mins ago
SR
LEAD ENGINEER - PRINCIPAL ENGINEER - Laser Development Engineer - Boulder, CO
Southwest Research I
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- $121,451 to $226,720 USD / year
Contribute to the design, development, and hands-on fabrication, assembly, integration, and test of instrumentation systems from concept to flight instrument delivery.
Added 41 mins ago
SR
LEAD ENGINEER - Instrument Systems Engineer - Boulder, CO
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- $121,451 to $202,446 USD / year
Lead the design, integration & test, and deploy a new generation of space weather instruments.
Added 50 mins ago
AI/ML Engineer
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Arlington, VA
The AI/ML Engineer will design, build, and maintain AI/ML lifecycle core services and products. This person will create utilities and ensure seamless function of orchestration capabilities…
Added 50 mins ago
Chief Data/AI Engineer
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Arlington, VA
The Chief Data/AI Engineer will oversee all enterprise data engineering and operations support, ensuring the delivery of four primary data functions across all applicable security enclaves.…
Added 50 mins ago
Chief Engineer
Avalore, LLC
Arlington, VA
The Chief Engineer will oversee all systems engineering and design activities required to engineer and implement the WDP System. This person will prepare, maintain, and execute the System…
Added 50 mins ago
Systems Engineer
Avalore, LLC
Arlington, VA
The Systems Engineer will conduct comprehensive systems engineering activities to support the WDP platform. This person will translate customer requirements into detailed system designs,…
Added 50 mins ago
Backup and Recovery Engineer
Avalore, LLC
Arlington, VA
The Backup Recovery Engineer will manage backup and recovery processes, ensure data integrity, and troubleshoot backup issues. This person will implement and maintain backup procedures,…
Added 50 mins ago
Integration Engineer
Avalore, LLC
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The Integration Engineer will perform the software integration activities required for the WDP System. This person will focus on ensuring that all disparate software components - including…
Added 50 mins ago
Platform Engineer
Avalore, LLC
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The Platform Engineer will develop and maintain the common platform tools and services that enable the WDP System's data management and analytics capabilities. This person will build and…
Added 50 mins ago
DevSecOps Engineer
Avalore, LLC
Arlington, VA
The DevSecOps Engineer will maintain and operate the WDP DevSecOps factory and its associated automated pipelines. This person will integrate security into every phase of the software…
Added 50 mins ago
Software Developer/Engineer
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The Software Developer/Engineer will perform hands-on software development and integration for the WDP System's software components, including infrastructure, data tools, and user…
Added 50 mins ago
Software Tester / QA Engineer
Avalore, LLC
Arlington, VA
The Software Tester/QA Engineer will ensure the quality of all WDP System software by developing and executing comprehensive test plans and test cases. This person will coordinate with the…
Added 50 mins ago
M
Principal Design Verification Engineer
Microsoft
NC · TX · Raleigh, NC · Austin, TX · Raleigh · Austin
- $142,800 to $304,200 USD / year
…Microsoft cloud hardware. We are looking for an experienced engineer with a dedicated passion for customer focused solutions, insight and industry knowledge to envision and implement future…
Added 50 mins ago
Software Development Engineer
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Herndon, VA
As a Software Development Engineer in this role, you will focus on designing and implementing robust event-driven architectures that enhance observability and enable comprehensive tracking…
Added 50 mins ago
Palantir Platform Engineer
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Added 50 mins ago
Software Engineer
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…implementing code that undergoes code reviews, unit testing, integration testing and deployed to a production…
Added 50 mins ago
Configuration Manager, Level 3
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Avalore is seeking a Cloud Design Engineer, Level 3. Responsible for configuration management (CM) of developmental and operational systems. Works on developmental and operational teams to…

Closed listing

Cognizant

Senior Network Engineer

Lincoln, NE, United States

Remote

The salary range for this role is between $99,000 and $116,000 depending on the skills and qualifications of the candidate .

This opening has closed.

The original listing is kept below for reference.

Find open jobs More jobs with this employer

About employer

Job details

Pay: The salary range for this role is between $99,000 and $116,000 depending on the skills and qualifications of the candidate .
Workplace: Remote
Experience: · 8+ years of enterprise network engineering experience, including at least 3 years in a senior or L3 role.
Posting language: English
Posted: Nov 5, 2026

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Original job description

Archived listing. The details below describe a past opening.

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. The engineer will serve as an L3 escalation point, lead major-incident troubleshooting, execute migrations and lifecycle upgrades, perform root cause analysis, and collaborate with security, cloud, application, server, and architecture teams.

Key Responsibilities

Network Engineering and L3 Operations

· 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.

F5 BIG-IP

· Configure and troubleshoot F5 BIG-IP LTM, including virtual servers, pools, nodes, monitors, profiles, SNAT, persistence, traffic policies, and SSL offload.

· Manage SSL/TLS certificates, ciphers, health checks, high availability, upgrades, backup, and recovery.

· Develop and troubleshoot iRules; experience with F5 DNS/GTM and Advanced WAF/ASM is preferred.

· Resolve latency, session persistence, SSL handshake, health-monitor, and traffic-distribution issues.

Palo Alto Networks

· Administer Palo Alto firewalls and Panorama, including zones, security policies, NAT, objects, App-ID, User-ID, URL filtering, threat profiles, and logging.

· Troubleshoot sessions, routing, policy matching, NAT, IPsec VPN, GlobalProtect, and application connectivity using logs, CLI tools, and packet captures.

· Perform PAN-OS upgrades, rulebase cleanup, recertification, migrations, and security-hardening activities.

Cisco ACI and Nexus

· Design and troubleshoot Cisco ACI fabrics using APIC, tenants, VRFs, bridge domains, application profiles, EPGs, contracts, filters, VMM integration, and L3Out.

· Configure Cisco Nexus 3K/5K/7K/9K platforms using VLANs, trunks, vPC, STP, HSRP, OSPF, BGP, VXLAN, and EVPN.

· Troubleshoot endpoint learning, contracts, routing adjacency, fabric health, interfaces, port channels, and Layer 2/Layer 3 connectivity.

· Support data-center migrations, segmentation, fabric expansion, software upgrades, and hardware refresh programs.

Cisco Meraki

· Design, deploy, and administer Cisco Meraki MX security appliances, MS switches, MR wireless access points, and the Meraki Dashboard.

· Configure Auto VPN, SD-WAN, traffic shaping, content and security policies, VLANs, DHCP, site-to-site VPN, client VPN, and high availability.

· Plan wireless networks using RF fundamentals, channel and power optimization, SSIDs, authentication, guest access, and roaming.

· Monitor organization and network health, analyze event logs and packet captures, manage templates and firmware, and troubleshoot branch, LAN, WAN, and Wi-Fi issues.

· Use Meraki APIs and automation workflows for inventory, configuration validation, monitoring, and large-scale deployment.

Cloud Networking

· Design and support Microsoft Azure and AWS connectivity across cloud and on-premises data centers.

· Azure: VNets, subnets, NSGs, UDRs, Load Balancer, Application Gateway, Azure Firewall, VPN Gateway, ExpressRoute, Private Link, and DNS.

· AWS: VPCs, subnets, route tables, Security Groups, NACLs, Transit Gateway, Elastic Load Balancing, Direct Connect, Route 53, PrivateLink, and Site-to-Site VPN.

· Troubleshoot asymmetric routing, overlapping address space, DNS, MTU, VPN, firewall, load-balancing, and cloud-to-data-center connectivity.

· Implement automation and Infrastructure as Code using Python, Ansible, Terraform, REST APIs, JSON, YAML, and Git.

DDI: DNS, DHCP and IPAM

· Administer enterprise DDI platforms, preferably Infoblox Grid, including DNS zones and records, DHCP scopes, reservations, failover, IPAM, and role-based access.

· Troubleshoot recursive and authoritative DNS, forwarding, delegation, DNSSEC, DHCP allocation, lease, and address-management issues.

· Maintain address plans, naming standards, DNS/DHCP resiliency, automation workflows, reports, upgrades, backups, and disaster-recovery procedures.

Required 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.

This is a remote role. The salary range for this role is between $99,000 and $116,000 depending on the skills and qualifications of the candidate . Applications will be accepted till 11/11/2026.

Cognizant is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to sex, gender identity, sexual orientation, race, color, religion, national origin, disability, protected Veteran status, age, or any other characteristic protected by law.

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