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Coretek

Network Engineer, L-3

Coretek

. Design, deploy, and support Azure network architectures including hub-and-spoke, Virtual WAN, VNets, peering, UDRs, NSGs, Private Endpoints, and Private DNS.

Posted 10/24/2026full-timeRemote • United StatesMid-LevelSeniorWebsite

Core Competencies

Role fit
Core Competencies

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Demonstrates expertise in designing, deploying, and supporting Azure network architectures and hybrid connectivity solutions, with a strong focus on security and automation. Proven ability to lead incident triage, perform root cause analysis, and mentor teams while ensuring compliance and optimal network performance.

Highest-signal resume keywords
Azure NetworkingPalo Alto Firewall AdministrationHybrid Connectivity ImplementationNetwork Automation with TerraformL3 Escalation Support

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills
Azure Network ArchitectureVPN ConfigurationRouting and SwitchingNetwork Security PoliciesZero Trust PrinciplesSD-WAN ManagementBGPOSPFVLANsPacket Capture
Soft Skills
Client-Focused CommunicationMethodical TroubleshootingCoaching MindsetCollaborative TeamworkStrong Documentation Skills
Tools & Technologies
Palo Alto PAN-OSFortinet FortiGateAzure FirewallAnsiblePowerShellBicepExpressRouteAzure Load BalancerApplication Gateway/WAFDNS Services
Certifications & Qualifications
Microsoft Certified: Azure Network Engineer Associate (AZ-700)Palo Alto Networks Certified Network Security ProfessionalFortinet Certified Professional: Network SecurityPalo Alto Networks Certified Next-Generation Firewall EngineerMicrosoft Certified: Azure Security Engineer Associate (AZ-500)CCNP Enterprise
Industry Keywords
Managed ServicesNetwork DesignIncident TriageSecurity Posture AssessmentCompliance RequirementsNetwork MonitoringConfiguration StandardsService RestorationThreat InvestigationsNetwork Infrastructure

Tech Stack

Tools & technologies
AnsibleAzureCloudDNSFirewallsPythonSwitchingTerraform

About the role

Key responsibilities & impact
  • Design, deploy, and support Azure network architectures including hub-and-spoke, Virtual WAN, VNets, peering, UDRs, NSGs, Private Endpoints, and Private DNS.
  • Implement and troubleshoot hybrid connectivity using site-to-site VPN, point-to-site VPN, and ExpressRoute.
  • Configure and support Azure Firewall, Application Gateway/WAF, Azure Load Balancer, Front Door, and DNS services.
  • Maintain network diagrams, IP address plans, architecture decisions, and configuration standards.
  • Design, deploy, and manage Palo Alto and Fortinet firewalls on-premises and in Azure.
  • Build and maintain security policies, NAT, IPsec tunnels, GlobalProtect/remote access VPN, URL filtering, and threat prevention profiles.
  • Apply Zero Trust and network segmentation principles across cloud and data center environments.
  • Perform firewall rule reviews, policy cleanup, security posture assessments, and prioritized remediation planning.
  • Coordinate with security operations teams on threat investigations, vulnerability remediation, and compliance requirements.
  • Support and optimize routing and switching environments, including BGP, OSPF, VLANs, STP, and Layer 2/Layer 3 designs.
  • Manage SD-WAN, wireless, load balancing, and data center network infrastructure.
  • Plan and execute network upgrades, migrations, firmware/OS lifecycle management, and data center-to-cloud transitions.
  • Validate capacity, redundancy, and failover designs to meet availability commitments.
  • Provide L3 escalation support for complex network, firewall, connectivity, and performance issues across multiple clients.
  • Lead technical triage, packet capture and traffic analysis, service restoration, and coordination with ISPs, vendors, and client teams.
  • Perform root cause analysis, document corrective actions, and eliminate recurring incidents through engineering improvements.
  • Improve network monitoring, alert quality, runbooks, and change and maintenance procedures.
  • Participate in an escalation/on-call rotation and provide clear, timely status communications during major incidents.
  • Automate network deployment and configuration tasks using Terraform, Bicep, Ansible, PowerShell, or Python.
  • Develop and enforce network standards, templates, and configuration baselines across client environments.
  • Review incident, ticket, and capacity trends to identify proactive improvements.
  • Track remediation completion, risk reduction, and service stability outcomes.
  • Serve as a trusted network advisor and escalation point for managed services clients.
  • Lead network design reviews, technical discovery, and recommendation readouts.
  • Mentor Systems Engineers and service desk staff and build reusable troubleshooting guidance and knowledge articles.
  • Collaborate with Azure, security, EUC, service delivery, and account teams; support presales discovery and client onboarding into managed services.

Requirements

What you’ll need
  • 5+ years of enterprise network engineering experience, including 4+ years as a Cloud Network Engineer supporting multiple clients and systems.
  • Hands-on experience designing and supporting Azure networking and hybrid connectivity in production environments.
  • Strong experience administering Palo Alto and/or Fortinet next-generation firewalls.
  • Experience providing L3 escalation support, leading major incident triage, and completing root cause analysis in a managed services or multi-client environment.
  • Proven ability to move between design, hands-on implementation, troubleshooting, and client communication.
  • Azure Networking: VNets, hub-and-spoke, Virtual WAN.
  • ExpressRoute, VPN, and hybrid connectivity.
  • Palo Alto PAN-OS, Panorama, and VM-Series.
  • Fortinet FortiGate and FortiManager.
  • Routing and switching: BGP, OSPF, VLANs.
  • SD-WAN, load balancing, and DNS.
  • Zero Trust, segmentation, and Azure Firewall.
  • Terraform, Bicep, Ansible, and network automation.
  • Microsoft Certified: Azure Network Engineer Associate (AZ-700) – required.
  • Palo Alto Networks Certified Network Security Professional.
  • Fortinet Certified Professional: Network Security.
  • Palo Alto Networks Certified Next-Generation Firewall Engineer.
  • Microsoft Certified: Azure Security Engineer Associate (AZ-500).
  • CCNP Enterprise or equivalent.
  • Disciplined, methodical troubleshooting and strong network design judgment.
  • Consultative, client-focused communication during normal operations and high-severity incidents.
  • Ability to work independently while collaborating across cloud, security, and support teams.
  • Strong documentation, knowledge transfer, and diagramming skills.
  • Coaching mindset and willingness to grow the technical capability of the team.
  • Commitment to secure, stable, automated, and standards-driven network outcomes.