Jobs in the United States

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Added 1 min ago
IS
System Integration Engineer – Tech Lead
Information Systems
United States
- $153,192 to $163,192 USD / year
Job Title: System Integration Engineer – Tech Lead
Added 3 mins ago
Software Engineer
Instem
Conshohocken, PA
The mission of the Software Engineer is to collaborate closely with cross functional team members to design, develop, and support high quality software solutions. As part of a collaborative…
Added 4 mins ago
BO
Civil Engineer
Bureau of Reclamation
Sacramento, CA
- $106,335 to $142,737 USD / year
You will serve as a Civil Engineer with the Bureau of Reclamation, Bay Delta Office responsible for developing and applying hydrologic and water-operations models to support planning and…
Added 6 mins ago
Senior/Principal Software Engineer - Cryptography & Post-Quantum Security (Multiple Roles)
Microsoft
South District, IL · North District, IL
…considered for a high-impact role (at either the Senior Software Engineer or Principal Software Engineer…
Added 6 mins ago
UA
Civil Engineer
U.S. Army Corps of Engineers
Vicksburg, MS
- $118,204 to $145,483 USD / year
About the Position: Serves as a Civil Engineer Subject Matter Expert (SME) and Engineering Technical Lead for certain projects as designated by the E&C Division Chief.Duties
Added 6 mins ago
UA
Civil Engineer (STRUCTURAL)
U.S. Army Corps of Engineers
Vicksburg, MS
- $99,954 to $119,097 USD / year
Incumbent serves as Lead Structural Engineer for assigned projects. | Develops and provides input to the Project Management Plan. | Develops design details of structural features for the…
Added 8 mins ago
DO
Instructor Of Systems Engineering
Department of the Air Force
Wright-Patterson AFB, OH
- $110,401 to $143,523 USD / year
Working knowledge of systems engineering concepts and successful application of digital materiel management and model-based systems engineering, open systems approaches, software…
Added 8 mins ago
AN
CONTRACT SPECIALIST
Army National Guard Units
Columbia, SC
- $50,460 to $65,599 USD / year
Specialized Experience -Must have one year of experience in positions collecting and analyzing data
Added 8 mins ago
NR
Supervisory Interdisciplinary Civil/Agriculture Engineer
Natural Resources Conservation Service
Bozeman, MT
- $106,437 to $138,370 USD / year
…training, and/or technical experience that furnished (1) a thorough knowledge of the physical and mathematical sciences underlying engineering, and (2) a good understanding, both…
Added 11 mins ago
US
MECHANICAL ENGINEER
United States Fleet Forces Command
Naval Shipyard, Portsmouth, VA
- $90,838 to $118,092 USD / year
Applicants must possess:
Added 11 mins ago
Cloud Engineer II
11 11 Systems
United States
11:11 is looking for an experienced Cloud Engineer II in supporting and guaranteeing a positive post-implementation experience for all 11:11 customers. This position is responsible for the…
Added 13 mins ago
EP
Fire Protection Engineer
Environmental Protection Agency
Durham, NC · Cincinnati, OH
- $110,865 to $144,493 USD / year
In addition to the basic entry education requirements, you must have specialized experience and/or directly related education as described below: · You must have one of the following:
Added 15 mins ago
Senior Staff Software Engineer, AI/ML Diagnostic Systems and Hardware Coverage
Google
Sunnyvale, CA
Knowledge of computer architecture, modern ASIC/SoC functional blocks, high-speed interfaces, and hardware failure mechanisms.
Added 18 mins ago
O
Senior Platform Software Engineer - Oracle Health | US Citizens & Green Card Holders Only
Oracle
Jefferson City, MO
- $87,800 to $209,500 USD / year
…platform. We are seeking a highly skilled Principal Software Engineer to join our Clinical Applications Engineering team focused on modernizing provider workflows, inbox management, and…
Added 18 mins ago
CN
SUPERVISOR
Commander, Naval Information Warfare Systems Command (NAVWARSYSCOM)
Point Loma Complex, San Diego, CA
- $143,677 to $197,200 USD / year
…training, and/or technical experience that furnished (1) a thorough knowledge of the physical and mathematical sciences underlying engineering, and (2) a good understanding, both…
Added 18 mins ago
CN
SUPERVISOR
Commander, Naval Information Warfare Systems Command (NAVWARSYSCOM)
Point Loma Complex, San Diego, CA
- $102,246 to $186,785 USD / year
…training, and/or technical experience that furnished (1) a thorough knowledge of the physical and mathematical sciences underlying engineering, and (2) a good understanding, both…
Added 18 mins ago
UA
Administrative Support Assistant (Office Automation)
U.S. Army Corps of Engineers
New Orleans, LA
- $45,409 to $65,599 USD / year
…Area Office personnel to ensure timely completion of records management, time-and-attendance reporting, travel, cost-distribution, reporting, and information-support requirements. | Advise…
Added 18 mins ago
FA
Electronics Engineer
Federal Aviation Administration
El Segundo, CA · Anchorage, AK · Des Moines, WA
- $77,351 to $119,883 USD / year
Incumbent applies professional knowledge, practices, principles, theories, concepts, techniques and abilities, for the electronic engineering discipline, dealing in particular with…
Added 21 mins ago
BP
IT Specialist (Software Developer)
Bonneville Power Administration
Portland, OR
- $96,443 to $125,378 USD / year
For all positions individuals must have IT-related experience demonstrating each of the four competencies listed below
Added 24 mins ago
NS
MANAGER
Naval Sea Systems Command
Crane, IN
- $125,776 to $192,331 USD / year
…experience must demonstrate the following: as a professional Engineer or Scientist, providing technical oversight and guidance on the design, development, planning, and execution of…
Added 24 mins ago
US
Supervisory General Engineer
United States Army Installation Management Command
West Point, NY
- $174,347 to $197,200 USD / year
…providing advice and assistance to the Garrison Commander, and top management officials of installation and tenant activities on matters pertaining to logistical, housing and environmental…
Added 24 mins ago
Senior Fire Protection Engineer -Federal
Jacobs
Honolulu, HI
As a Senior Fire Protection Engineer you will work alongside a robust staff of experienced and licensed Fire Protection Engineers to develop and use your skills and experience to deliver…
Added 24 mins ago
EG
Senior Systems Administrator / Infrastructure Engineer
Eliassen Group
Honolulu, HI
- $65 to $75 USD / hour
Our client seeks a senior-level Systems Administrator or Infrastructure Engineer to administer Linux and Windows Server environments, manage AWS services, and drive automation and…
Added 25 mins ago
Mechanical Commissioning Engineer - Missouri Job Details | Black & Veatch Family of Companies
Black & Veatch
Lathrop, MO
- Work up to a 12 hour shift doing hard physical labor in varying temperature extremes and other outside conditions
Added 26 mins ago
C
Senior Knowledge Graph & Ontology Architect
Cognizant
Jefferson City, MO
- $130,000 to $160,000 USD / year
As a Senior Knowledge Graph & Ontology Architect , you will make an impact by designing and governing enterprise semantic architectures that enable trusted, scalable, and AI-ready knowledge…

Closed listing

Senior Network Engineer

Dover, DE, 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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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.

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Jobs in the United States