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Added 1 min ago
Azure Cloud Platform Engineer
Deloitte US
Cincinnati, OH · Hermitage, TN · Indianapolis, IN · Kansas City, MO · Nashville, TN · San Antonio, TX · St. Louis, MO · Tampa, FL
Partner with engineering, security, infrastructure and application teams to develop secure and reusable Azure capabilities.
Added 4 mins ago
Principal Project Manager - Highway Design/Construction - Transportation
Parsons Transportation Group
OH
Professional registration as a Professional Engineer (PE) in Ohio is required.
Added 4 mins ago
Engineering Manager - Bridge Design/Build/Construction
Parsons Transportation Group
IN
Parsons is now hiring an Engineering Manager who can lead a team of professionals working on our expanding portfolio of infrastructure projects!
Added 4 mins ago
Civil Engineering Intern
Parsons Transportation Group
CA
…direct mentorship and collaboration within a world-class team of Infrastructure design…
Added 4 mins ago
Senior Platform DevOps Engineer - TS/SCI w/ Poly
Parsons Technical Services, Inc.
MD
…for cyber operations? Are you an experienced DevOps/platform engineer who thrives in a fast-paced environment, enjoys owning infrastructure end to end, and wants to help shape how AI is…
Added 6 mins ago
Senior AI Agent Engineer (Autonomous Remediation & DevSecOps / FTE)
NTT DATA Americas, Inc.
Charlotte
Coach application, infrastructure, and security teams on agent onboarding, secure usage, human oversight, and adoption of the autonomous operating model.
Added 7 mins ago
Senior Advanced Site Reliability Engineer (SRE)
Honeywell
Atlanta, GA
We are seeking a highly skilled and experienced Senior Advanced Site Reliability Engineer (SRE) to join our team. The ideal candidate will have a strong background in DevOps and SRE…
Added 9 mins ago
Application Network Engineer
World Wide Technology
Maryland Heights, MO
+ Troubleshoot application connectivity, performance, and availability issues, performing root cause analysis in partnership with application, infrastructure, and security teams
Added 14 mins ago
Senior Software Engineer, Datacenter Automation Platforms
NVIDIA USA
CA
Drive cross-team adoption through build reviews, migration plans, documentation, and hands-on partnership. Align infrastructure, networking, storage, security, and workload teams on shared…
Added 14 mins ago
Senior Software Engineer, Platform Engineering - EDA Infrastructure
NVIDIA USA
Remote, United States
Understanding of performance, security, reliability, fault tolerance, state management, and data consistency in complex systems, built through real infrastructure automation, deployment,…
Added 14 mins ago
VP, Cloud IAM Engineering Leader
Synchrony Bank
Stamford Engagement Hub, CT · Chicago Engagement Hub, IL · Orlando Engagement Hub, FL · NYC Bryant Park Engagement Hub, NY · Cincinnati West Chester Engagement Hub, OH · Charlotte Engagement Hub, NC · Atlanta Engagement Hub, GA
…of cloud access configurations, engineering processes, and security controls, ensuring that cloud identities and permissions are consistently governed, automated, resilient, and aligned to…
Added 16 mins ago
AI Systems Engineer - AI Platforms - Manager
EY
Saint Louis, MO
To qualify you must have
Added 16 mins ago
AI Systems Engineer - AI Platforms - Manager
EY
Jefferson City, MO
To qualify you must have
Added 16 mins ago
AI Systems Engineer - AI Platforms - Manager
EY
Kansas City, MO
To qualify you must have
Added 17 mins ago
Software Engineering Architect
Cisco
Research Triangle Park, NC
Cisco’s Security & Trust Organization (STO) is the backbone of our global customer ecosystems. The Cryptographic Services team builds and operates the zero-trust infrastructure that secures…
Added 22 mins ago
Solutions Engineer
Crogl
Remote, United States
Join Crogl and help redefine how security teams work. As a Solutions Engineer, you'll be a critical part of our go-to-market motion - the technical voice of Crogl in every deal, and the…
Added 24 mins ago
Senior Software Engineer - Full Stack (TS Clearance)
Andesite
WA · McLean, VA
At Andesite, we are building a new product for technical operators in the national security space. As a full stack engineer, you will be responsible for developing our application backend…
Added 24 mins ago
Principal Engineer, Cloud Software
LI-COR
United States
…networking, databases, storage, identity and access, observability, security, resiliency, and infrastructure as…
Added 25 mins ago
Infrastructure Engineer (Active Secret Clearance)
Akima, LLC
Alexandria, VA
SUVI Global Services is looking for an Infrastructure Engineer to support IT across all DoD OIG networks. The position will help support the OIG's on-prem and cloud infrastructure, work on…
Added 26 mins ago
Software Engineer- AI, Autonomy and Platform Development
LEIDOS, INC.
Reston, VA · Huntsville, AL · San Diego, CA
Software Engineer – AI, Autonomy & Platform Development
Added 30 mins ago
Northrop Grumman (SkillBridge) - Principal Network Cloud Communications
Northrop Grumman
Redondo Beach · Melbourne · Linthicum Heights · Rolling Meadows
…seeking a Principal Network Communications to support its IT Infrastructure & Operations organization's Classified Solutions team. The selected candidate will support the design,…
Added 30 mins ago
NG
2027 Intern Engineer - Product Support
Northrop Grumman
Oklahoma City
- $17.5 to $39.25 USD / hour
Assist in gathering data for facilities, tooling, and infrastructure needed to support B‑2 maintenance at Oklahoma City and other sites.
Added 30 mins ago
Sentinel - Sr Principal Systems Engineer - 18016
Northrop Grumman
Roy
Northrop Grumman Defense Systems is seeking a Principal / Sr. Principal Systems Engineer. This opening is in Roy, UT and will support the Sentinel Program. Northrop Grumman supports the Air…
Added 30 mins ago
Sentinel Project Change Engineering Section Manager 2 - 14050-1
Northrop Grumman
Roy
…Airborne Launch Control Systems, Launch Facilities, and associated…
Added 31 mins ago
E
Fraud Analytics Engineer
Experian
United States
- $103,669 to $179,693 USD / year
We're looking for an Analytics Engineer that operates at the intersection of data engineering, infrastructure, and machine learning.

Closed listing

Senior Network Engineer

Springfield, IL, 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