Jobs in the United States

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Added 2 mins ago
A
Quality Technician
Aerotek
San Francisco, CA
- $36 to $42 USD / hour
Accurately record inspection data in the qualitymanagement system, maintaining full traceability of lot numbers, inspection outcomes, and related documentation.
Added 7 mins ago
TT
Founding Member of Technical Staff
True Talent Solutions Partners
Palo Alto, CA
- $200,000 to $300,000 USD / year
- Build and extend data pipelines, trading signals, and research infrastructure.
Added 10 mins ago
Senior Manager, Analytics Engineering & Data Science
Procore Technologies, Inc.
TX
Data Science Manager or Lead Analytics Engineer at a high-growth SaaS enterprise
Added 16 mins ago
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Advanced Technical Support Engineer – Tier 3 (PageWide Industrial, AMS)
HP
Corvallis · Morton
- $73,800 to $113,650 USD / year
Digital fluency – You’re comfortable working with modern tools and data.
Added 17 mins ago
Senior Applications Engineer
ASML US, LLC. (US01)
N Phoenix, AZ
Must have strong organizational, communication, leadership and interpersonal skills
Added 17 mins ago
Principle Plasma and Laser Physics engineer
ASML US, LP. (US30)
San Diego, CA
As a Principal Plasma and Laser Physics Engineer on the EUV Source Performance team in San Diego, you’ll help ensure that ASML’s EUV light sources meet or exceed customer performance…
Added 17 mins ago
AU
Internship - Mechatronics Engineer
ASML US, LP. (US30)
Wilton, CT
- $18 to $48 USD / hour
A well-rounded mechatronics engineer in this position will work on mechatronics, precision handling of delicate parts, product and system integration and software functionality, all…
Added 17 mins ago
AU
Internship - Engineer (Defectivity, Materials & Contamination Analysis)
ASML US, LP. (US30)
Wilton, CT
- $18 to $48 USD / hour
…Physics, Mechanical Engineering, Electrical Engineering, Software/Data Science, or a related technical field to join the MDU (Module Delivery Unit) Defectivity Group in Wilton,…
Added 28 mins ago
WI
(USA) Staff, Data Engineer
Walmart Inc.
United States
- $143,000 to $286,000 USD / year
Role summary: The Martech Global Data Foundations team is seeking a Staff Data Engineer to own the architecture and technical direction for the data platforms powering Walmart's global…
Added 28 mins ago
WI
(USA) Staff, Software Engineer
Walmart Inc.
United States
- $110,000 to $220,000 USD / year
Partner with Data Science to understand agent and model quality metrics and turn them into engineering improvements.
Added 28 mins ago
WI
(USA) Senior, Data Engineer
Walmart Inc.
United States
- $117,000 to $234,000 USD / year
Role summary: Join Walmart as a Senior Data Engineer and leverage your expertise in data integration, modeling, and pipeline development to support scalable data solutions. This role…
Added 28 mins ago
WI
(USA) Staff, Data Engineer
Walmart Inc.
United States
- $143,000 to $286,000 USD / year
Role summary: The Martech Global Data Foundations team is seeking a Staff Data Engineer to own the architecture and technical direction for the data platforms powering Walmart's global…
Added 29 mins ago
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ENGINEERING TECHNICIAN 1 - UNDERFILL
State of Nevada (NV)
Elko, NV
- $20.83 to $30.16 USD / hour
…engineering skills, methods, and practices in compiling technical data, drafting, computer aided software, operating specialized equipment and preparing engineering related…
Added 30 mins ago
Sr Quality Engineer QEV
Genentech, Inc.
United States
…can make a tangible impact on people's lives? The Sr. Quality Engineer (QEV) will be joining a collaborative team, where innovation, quality, and compliance are at the core of everything we…
Added 34 mins ago
Staff Software Engineer, FE/Mobile Engineer
QXO
Herndon, VA
As a Staff Software Engineer on the QXO eCommerce team, you will lead the design, development, and operation of foundational commerce services. You will own complex systems from ideation…
Added 40 mins ago
DW
Software Engineer
Design West Technologies, Inc.
Tustin, CA
- $115,000 to $135,000 USD / year
As a Software Engineer, you will work with our primary technology stack, including TypeScript, React, Next.js, Node.js, Express, and SQL, to develop and enhance an internal website that…
Added 41 mins ago
Manufacturing Engineer
Actalent
Chandler, AZ
Job Title: Manufacturing EngineerJob DescriptionWe are seeking a talented Manufacturing Engineer to join our team at our facility in Chandler, AZ. In this role, you will work from…
Added 48 mins ago
Senior Deployment Engineer - LLM Inference & Optimization
CoreWeave
CA/ Sunnyvale, CA · Sunnyvale, CA
We’re looking for a Deployment Engineer who combines hands-on AI engineering, model optimization, and strong customer-facing skills.
Added 49 mins ago
TT
Mechanical Design Engineer
True Talent Solutions Partners
San Francisco, CA
- $150,000 to $250,000 USD / year
…helping turn robotic systems into practical infrastructure for data centre…
Added 49 mins ago
TT
Founding Forward Deployed Engineer
True Talent Solutions Partners
New York, NY
- $180,000 to $250,000 USD / year
On-site in New York, New York, five days per week.
Added 52 mins ago
Staff Machine Learning Engineer - Vision AI
Toast
Remote, United States
We're looking for a Staff Machine Learning Engineer, Vision AI to build the platform and the products that bring it to restaurant operators. You'll own major parts of the system end to end,…
Added 52 mins ago
Principal Machine Learning Engineer, Vision AI
Toast
Remote, United States
We're looking for a Principal Machine Learning Engineer, Vision AI to architect and build the platform behind these products. You'll have an outsized influence on how Vision AI is built and…
Added 52 mins ago
Forward Deployed Engineer
United Airlines
Chicago, IL
…serve customers, and support employees. As a Forward Deployed Engineer, you'll embed with business teams, find the best AI opportunities, and turn them into deployed solutions. You'll own…
Added 52 mins ago
Lead AI Process Engineer
United Airlines
Chicago, IL
Assess process maturity, AI readiness, data availability and operational feasibility across business areas and build a prioritized portfolio based on value, feasibility, risk, and…
Added 54 mins ago
O
Senior Principal Core Infrastructure Engineer
Oracle
Nashville, TN
- $126,200 to $264,100 USD / year
As a Senior Software Engineer for the Access Governance platform, you will design, develop, and maintain scalable backend services primarily in Java that support large volumes of identity,…

Closed listing

Senior Network Engineer

Jefferson City, MO, United States

· The Salary for this position will be $99,000 and $115, 000 yearly depending on experience and other qualifications of the successful candidate.

This opening has closed.

The original listing is kept below for reference.

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About employer

Job details

Pay: · The Salary for this position will be $99,000 and $115, 000 yearly depending on experience and other qualifications of the successful candidate.
Experience: · 8+ years of enterprise network engineering experience, including at least 3 years in a senior or L3 role.
Posting language: English
Posted: Nov 9, 2026

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Original job description

Archived listing. The details below describe a past opening.

Job Summary

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 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.

Preferred Certifications and Skills

· F5 Certified BIG-IP Administrator or F5 Certified Technology Specialist.

· Palo Alto Networks Certified Network Security Engineer (PCNSE).

· Cisco CCNP Enterprise or CCNP Data Center; CCIE is an advantage.

· Cisco Meraki Solutions Specialist (CMSS), ECMS training, or equivalent Meraki implementation experience.

· Microsoft Certified: Azure Network Engineer Associate or AWS Certified Advanced Networking - Specialty.

· Infoblox accreditation or equivalent enterprise DDI training.

· Experience with SolarWinds, Splunk, LogicMonitor, ThousandEyes, NetBox, ServiceNow, Git, CI/CD, SASE, SD-WAN, and Zero Trust segmentation.

Core Competencies

Technology Area

Expected Proficiency

Key Capabilities

F5 BIG-IP

Advanced

LTM, SSL, HA, iRules; DNS/GTM and WAF preferred

Palo Alto

Advanced

PAN-OS, Panorama, policy, NAT, VPN, threat controls

Cisco ACI

Advanced

APIC, EPGs, contracts, L3Out, fabric troubleshooting

Cisco Nexus

Advanced

vPC, OSPF, BGP, VXLAN/EVPN, data-center switching

Cisco Meraki

Advanced

MX, MS, MR, Dashboard, Auto VPN, SD-WAN, Wi-Fi

Cloud Networking

Intermediate to Advanced

Azure/AWS, ExpressRoute/Direct Connect, VPN, load balancing

DDI

Intermediate to Advanced

Infoblox, DNS, DHCP, IPAM, resiliency

Automation

Preferred

Python, Ansible, Terraform, APIs, Git

Success Measures

· High network availability and timely restoration of critical services.

· Reliable delivery of changes with complete validation and rollback readiness.

· Reduction in repeat incidents through effective RCA and corrective actions.

· Improved security posture, lifecycle compliance, capacity, and operational documentation.

· Measurable automation of repeatable configuration, validation, inventory, and reporting tasks.

Salary and Benefits

· The Salary for this position will be $99,000 and $115, 000 yearly depending on experience and other qualifications of the successful candidate.

· This position is also eligible for Cognizant’s discretionary annual incentive program, based on performance and subject to the terms of Cognizant’s applicable plans.

· Benefits: Cognizant offers the following benefits for this position, subject to applicable eligibility requirements:

· 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

· Disclaimer: The compensation, and benefits information is accurate as of the date of this posting. Cognizant reserves the right to modify this information at any time, subject to applicable law.

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.

About employer

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
CCNP
AWS certification
SolarWinds
Splunk
ServiceNow
CI/CD
Reporting

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Work requirements

Jobs in the United States