Jobs in the United States

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Added 5 mins ago
Director, Compliance & Quality Systems
Jobgether
Remote, United States
…regulated laboratory environment. You will lead the final design, implementation, and ongoing operation of the QMS, ensuring alignment with Good Manufacturing Practice (GMP) requirements…
Added 21 mins ago
C
Senior Azure Virtual Desktop Engineer
Cognizant
Jefferson City, MO
- $79,000 to $90,000 USD / year
As a Senior Azure Virtual Desktop Engineer, you will make an impact by designing, deploying, automating, and optimizing Azure Virtual Desktop environments that support both pooled…
Added 21 mins ago
Senior Network Engineer
Cognizant
Jefferson City, MO
We are seeking an experienced Senior Network Engineer to design, implement, secure, operate, and optimize enterprise data-center, campus, branch, wireless, and hybrid-cloud networks. The…
Added 21 mins ago
AT
Senior Network Engineer - DDoS
Akamai Technologies, Inc.
Jefferson City, MO
- $112,500 to $202,500 USD / year
As a Senior Network Engineer, you will lead efforts in designing, implementing, and automating Akamai's global network infrastructure. You will address complex issues in routing, data…
Added 22 mins ago
Sr Project Manager - AI Data Centers
Jacobs
Kansas City, MO
This is your opportunity to elevate your career to the next level - leading complex, multi-discipline programs as a Senior Project Manager (CA) Lead, across OE, EPCM, and Design-Build…
Added 22 mins ago
Senior Manager, Agentic AI Engineer
PwC
Kansas City, MO · St. Louis, MO
What You Must Have
Added 22 mins ago
Google Cloud Engineer - Senior Associate
PwC
Kansas City, MO · St. Louis, MO
What You Must Have
Added 22 mins ago
Applied AI Health System Engineer [Health Services-Provider] – Senior Manager
PwC
St. Louis, MO · Kansas City, MO
What You Must Have
Added 37 mins ago
J
Senior Systems Engineer
Jobgether
Remote, United States
- $65 to $75 USD / hour
This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Systems Engineer based in the United States.
Added 51 mins ago
OI
Senior Embedded Software Engineer, DSP
OceanComm, Inc.
Chicago, IL
- $140,000 to $175,000 USD / year
This is a high-ownership role on a small, quickly growing team. You will not be one engineer among hundreds working on a narrow subsystem; you will have direct visibility into the full…
Added 53 mins ago
Transmission Engineer II
Omaha Public Power District
Omaha, NE
…reliable, and affordable energy to the community. As a Transmission Engineer II, you will support OPPD's mission by performing engineering studies, assisting with transmission line planning…
Added 58 mins ago
Senior FPGA/ASIC Engineer- Active Secret (Onsite)
RTX
United States
Qualifications You Must Have
Added 1 hour ago
Quality Control Engineer III (4038)
Navarro Inc.
Las Vegas, NV
The Quality Control Engineer III supports project and program teams by developing and maintaining effective management and quality assurance systems. Working with limited supervision, this…
Added 1 hour ago
Applied AI Health System Engineer [Health Services-Provider] – Senior Manager
PwC
Las Vegas, NV
What You Must Have
Added 1 hour ago
Google Cloud Engineer - Senior Associate
PwC
Las Vegas, NV
What You Must Have
Added 1 hour ago
Senior Manager, Agentic AI Engineer
PwC
Las Vegas, NV
What You Must Have
Added 1 hour ago
Senior Project Engineer
DPR GP
San Diego, CA
Supports the implementation of project controls, including schedule tracking and cost monitoring, to support timely and cost-effective delivery.
Added 1 hour ago
WW
Sr. Engineer - VMware VCF
World Wide Technology
Maryland Heights, MO
- $117,000 to $176,000 USD / year
+ This is a Hands-on role - Must have the ability to install complex DC Projects
Added 1 hour ago
Senior Epic Analyst
Insight Global
Bellaire, TX
The Senior Application Analyst position is responsible for expert level support and configuration of assigned applications. The position entails assisting, training and supporting customers…
Added 1 hour ago
Senior Security Engineer – ServiceNow and DLP
Bank of America
Addison, TX
Senior Technology Delivery Lead will lead the end-to-end technology delivery of our enterprise ServiceNow Security Incident Response (SIR) and Data Loss Prevention (DLP) capabilities.
Added 1 hour ago
Sr. Application Analyst Certified
Houston Methodist
Bellaire, TX
At Houston Methodist, the Senior Application Analyst position is responsible for expert-level support and configuration of assigned applications. The position entails assisting, training…
Added 1 hour ago
Fire Protection Senior Engineering Manager
Enercon services Inc
Kennewick, WA
Professional Engineer (PE) license required
Added 1 hour ago
Senior Application Analyst - Radiology
Houston Methodist
Bellaire, TX
At Houston Methodist, the Senior Application Analyst position is responsible for expert level support and configuration of assigned applications. The position entails assisting, training…
Added 1 hour ago
Sr Building Engineer (Temple, Tx)
CBRE
Temple, TX · Killeen, TX
As a Sr Building Engineer at CBRE, you will be the operational backbone of a mission-critical hospital campus in Temple, TX. You will be responsible for ensuring the optimal performance,…
Added 1 hour ago
ND
Infrastructure Engineer
NTT Data Americas, Inc.
Irving, TX
- $60 to $66 USD / hour
Senior Engineer to lead the evolution of its infrastructure provisioning and automation ecosystem. This role is ideal for a strategic technical leader who excels in architecting scalable…

Closed listing

Senior Network Engineer

Springfield, IL, 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.

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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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More about this job

Skills

Troubleshooting
Root cause analysis
DNS
DHCP
VPN
WAN
Implement ICT recovery system
Documentation
Regulatory compliance
Troubleshoot
OSPF
BGP
Firmware
LAN
Microsoft Azure
AWS
Route
Infrastructure as code
Python
Ansible
IBM Terraform
API development
Git
Computer science
Computer technology
VRRP
Wireshark
Tcpdump
ITIL
Communication skills

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Jobs in the United States