Network Segmentation

Network Segmentation Engineer Jobs

3 jobs found

1d ago

Senior Network Security Engineer

Govcio LLC Remote 🇺🇸 Remote

Remote

1d ago

$120k - $140k/yr Full time Senior Firewall Globalprotect

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Job Description

GovCIO LLC is seeking a Senior Network & Security Engineer to lead the design, operation, troubleshooting, and continuous improvement of enterprise network-security infrastructure. This is a fully remote role within the United States focused on Palo Alto NGFW and Panorama, High Availability, and Cisco switching and telemetry integration.

Key Responsibilities

Lead the design, deployment, administration, and lifecycle management of Palo Alto Networks NGFW environments running PAN-OS.
Own centralized firewall management through Palo Alto Panorama, including device groups, templates, template stacks, policy inheritance, upgrades, configuration backups, log monitoring, and firewall onboarding.
Design and govern security policies using zero-trust, least-privilege, application-aware, and risk-based principles.
Configure and troubleshoot security zones, NAT, virtual routers, static and dynamic routing, IPsec VPN, GlobalProtect, decryption, URL Filtering, Threat Prevention, WildFire, DNS Security, and App-ID policies.
Lead enterprise network segmentation and microsegmentation using security zones, VLANs, subinterfaces, virtual routers, routing controls, and application-based security policies.
Develop secure controls for traffic between users, servers, applications, management networks, guest networks, IoT/OT devices, data-center workloads, and cloud resources.
Architect, configure, test, and troubleshoot Palo Alto High Availability deployments, including Active/Passive and Active/Active designs as required.
Resolve complex HA failures related to HA1 control links, HA2 session/state synchronization, HA3 packet forwarding, peer communications, configuration synchronization, monitoring failures, split-brain prevention, and failover recovery.
Plan and execute HA failover testing, PAN-OS upgrades, disaster-recovery exercises, and maintenance procedures with minimal service impact.
Troubleshoot HA infrastructure dependencies, including cables, transceivers, switch ports, port channels, VLANs, routing, MTU, latency, packet loss, and redundant-path failures.
Lead configuration, support, and troubleshooting of Cisco Catalyst and Nexus switching environments.
Design and support VLANs, trunking, STP/RSTP/MST, EtherChannel/port channels, HSRP/VRRP, Layer 2/Layer 3 switching, ACLs, QoS, switch security, routing, and access-control technologies.
Diagnose complex connectivity and performance issues using firewall logs, session inspection, packet captures, CLI diagnostics, switch counters, flow data, and network-monitoring platforms.
Analyze TCP/IP behavior including handshake failures, SYN/SYN-ACK/ACK flows, retransmissions, resets, timeouts, asymmetric routing, MTU/MSS issues, fragmentation, latency, packet loss, and NAT translation problems.
Verify packet flow across firewall policy, App-ID, routing, NAT, decryption, threat prevention, VPN, switching, and server/application layers.
Monitor firewall management-plane and dataplane health, including CPU, memory, session capacity, packet buffers, throughput, logging, and interface performance.
Integrate Palo Alto NGFWs and Panorama with Strata Logging Service and Cortex XSIAM.
Ensure reliable firewall log forwarding, cloud logging, log ingestion, data normalization, event availability, retention, and telemetry quality.
Use Cortex XSIAM and XQL Search to investigate, correlate, and respond to firewall, endpoint, identity, cloud, and third-party security events.
Partner with SOC teams to tune detections, investigate alerts, develop response procedures, improve visibility, and support incident containment and remediation.
Lead root-cause analysis for major network or security incidents and deliver corrective and preventive action plans.
Develop and maintain network diagrams, firewall-policy documentation, HA designs, runbooks, change plans, architecture standards, and operational procedures.
Mentor junior engineers and provide technical leadership during projects, production incidents, and security reviews.

Qualifications

Bachelor’s degree with 8+ years experience (or commensurate experience).
7+ years of progressive experience in network engineering, network security, firewall administration, or security infrastructure operations.
5+ years of hands-on Palo Alto Networks firewall experience in a production enterprise environment.
Advanced operational experience with Palo Alto Panorama, including multi-device policy management, templates, device groups, upgrades, configuration management, and troubleshooting.
Strong hands-on experience designing, maintaining, and troubleshooting Palo Alto High Availability environments.
Advanced understanding of HA1, HA2, HA3, configuration synchronization, session synchronization, failover behavior, link monitoring, path monitoring, peer health, and recovery processes.
Strong expertise in TCP/IP, IPv4/IPv6, DNS, DHCP, ARP, routing, NAT, VPNs, and packet-level troubleshooting.
Demonstrated ability to investigate TCP handshakes, resets, retransmissions, MTU/MSS issues, asymmetric routing, connection timeouts, and firewall session behavior.
Extensive experience with Cisco Catalyst and/or Cisco Nexus switching technologies.
Strong knowledge of enterprise switching and routing, including VLANs, trunking, STP/RSTP/MST, EtherChannel, HSRP/VRRP, routing protocols, ACLs, QoS, and switch-security controls.
Proven experience designing or implementing network segmentation and microsegmentation solutions.
Working knowledge of Cortex XSIAM, Strata Logging Service, security-event correlation, alert investigation, XQL Search, and firewall log ingestion.
Ability to lead technical design discussions, manage complex workstreams independently, and communicate risks and recommendations to technical and nontechnical stakeholders.
Strong documentation, change-management, incident-management, and root-cause-analysis skills.
Must be able to attain and maintain AOUSC Public Trust.

Technology Focus

Palo Alto Networks NGFW, PAN-OS, Palo Alto Panorama
Cortex XSIAM, Cortex XQL Search, Strata Logging Service
Cisco Catalyst, Cisco Nexus
IPsec VPN, GlobalProtect, URL Filtering, Threat Prevention, WildFire, DNS Security, App-ID
High Availability (Active/Passive and Active/Active)
TCP/IP, NAT
STP/RSTP/MST, EtherChannel/port channels, HSRP/VRRP, VLANs

Role Overview

Located within the United States with a fully remote arrangement.
Responsible for Palo Alto Networks next-generation firewalls, Panorama, High Availability, Cisco switching, network segmentation, Cortex XSIAM, and Strata Logging Service.

Preferred Skills

Master’s degree in Cybersecurity, Information Technology, Computer Science, Engineering, or a related field.
Palo Alto Networks certifications: PCNSA, PCNSE, PCCSE, or equivalent enterprise-level experience.
Cisco certifications: CCNP Enterprise, CCNP Security, CCIE Enterprise Infrastructure, CCIE Security, or comparable expertise.
Experience with Palo Alto Prisma Access, Prisma Cloud, Cortex XDR, Cortex XSOAR, or cloud-delivered security services.
Experience with Cortex XSIAM alert triage, XQL queries, data-source integrations, detection tuning, dashboards, reporting, and response automation.
Experience with Cisco ISE, Cisco ACI, SD-Access, or enterprise network-access-control solutions.
Familiarity with Fortinet Security Fabric, FortiGate, FortiManager, and FortiAnalyzer.
Experience with AWS, Azure, Google Cloud Platform, hybrid-cloud network design, and cloud-security controls.
Familiarity with SIEM, SOAR, EDR/XDR, vulnerability-management, NDR, network-monitoring, and ticketing platforms.
Automation skills using Python, Ansible, Terraform, REST APIs, or related infrastructure-as-code and orchestration tools.
Experience supporting 24x7 environments, participating in an on-call rotation, leading critical incidents, and executing emergency changes.

Location and Compensation

Remote (remote) within the United States. Salary range: USD 120,000 - 140,000 per yearly (USD $120,000.00 - USD $140,000.00 /Yr.).

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1d ago

Network Security Engineer Master

Govcio LLC Remote 🇺🇸 Remote

Remote

1d ago

$125k - $150k/yr Full time Ai Security Cloud Platforms Cloud Security

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Job Description

GovCIO LLC is seeking a Network Security Engineer to lead the design, operation, troubleshooting, and continuous improvement of enterprise network security infrastructure. This fully remote role is based in the United States and centers on Palo Alto Networks next-generation firewall capabilities alongside Panorama management, high availability operations, enterprise switching, and advanced logging and security-event correlation.

The role involves owning critical network security components end to end, including centralized firewall administration, zero-trust style security policy governance, segmentation and microsegmentation strategies, and deep troubleshooting across firewall and switching layers. You will also support incident investigations with telemetry from Cortex XSIAM and Strata Logging Service, while partnering with SOC teams to improve visibility and response procedures.

Key Responsibilities

Lead the design, deployment, administration, and lifecycle management of Palo Alto Networks NGFW environments running PAN-OS.
Own centralized firewall management using Palo Alto Panorama, including device groups, templates, template stacks, policy inheritance, upgrades, configuration backups, log monitoring, and firewall onboarding.
Design and govern security policies using zero-trust, least-privilege, application-aware, and risk-based principles.
Configure and troubleshoot security zones, NAT, virtual routers, static and dynamic routing, IPsec VPN, GlobalProtect, decryption, URL Filtering, Threat Prevention, WildFire, DNS Security, and App-ID policies.
Lead enterprise network segmentation and microsegmentation initiatives using security zones, VLANs, subinterfaces, virtual routers, routing controls, and application-based security policies.
Develop secure traffic controls for communications among users, servers, applications, management networks, guest networks, and IoT/OT devices, as well as data-center workloads and cloud resources.
Architect, configure, test, and troubleshoot Palo Alto High Availability deployments, including Active/Passive and Active/Active designs.
Resolve complex HA failures involving HA1 control link issues, HA2 session/state synchronization problems, HA3 packet forwarding failures, peer communications, configuration synchronization, monitoring failures, split-brain prevention, and failover recovery.
Plan and execute HA failover testing, PAN-OS upgrades, disaster-recovery exercises, and maintenance procedures while minimizing service impact.
Troubleshoot HA infrastructure dependencies, including cables, transceivers, switch ports, port channels, VLANs, routing, MTU, latency, packet loss, and redundant-path failures.
Lead configuration, support, and troubleshooting of Cisco Catalyst and Nexus switching environments.
Design and support VLANs, trunking, STP/RSTP/MST, EtherChannel/port channels, HSRP/VRRP, Layer 2/Layer 3 switching, ACLs, QoS, switch security, routing, and access-control technologies.
Diagnose complex connectivity and performance issues using firewall logs, session inspection, packet captures, CLI diagnostics, switch counters, flow data, and network-monitoring platforms.
Analyze TCP/IP behavior, including handshake failures, SYN/SYN-ACK/ACK flow, retransmissions, resets, timeouts, asymmetric routing, MTU/MSS issues, fragmentation, latency, packet loss, and NAT translation problems.
Verify packet flow across firewall policy, App-ID, routing, NAT, decryption, threat prevention, VPN, switching, and server/application layers.
Monitor firewall management-plane and dataplane health, including CPU, memory, session capacity, packet buffers, throughput, logging, and interface performance.
Integrate Palo Alto NGFWs and Panorama with Strata Logging Service and Cortex XSIAM.
Ensure reliable firewall log forwarding, cloud logging, log ingestion, data normalization, event availability, retention, and telemetry quality.
Use Cortex XSIAM and XQL Search to investigate, correlate, and respond to firewall, endpoint, identity, cloud, and third-party security events.
Partner with SOC teams to tune detections, investigate alerts, develop response procedures, improve visibility, and support incident containment and remediation.
Lead root-cause analyses for major network or security incidents and deliver corrective and preventive action plans.
Develop and maintain network diagrams, firewall-policy documentation, HA designs, runbooks, change plans, architecture standards, and operational procedures.
Mentor junior engineers and provide technical leadership during projects, production incidents, and security reviews.

Required Qualifications

Master’s degree in Cybersecurity, Information Technology, Computer Science, Engineering, or a related field (three additional years if Bachelor’s degree); equivalent relevant experience may be considered.
10+ years of progressive experience in network engineering, network security, firewall administration, or security infrastructure operations.
6+ years of hands-on Palo Alto Networks firewall experience in a production enterprise environment.
Advanced operational experience with Palo Alto Panorama, including multi-device policy management, templates, device groups, upgrades, configuration management, and troubleshooting.
Strong hands-on experience designing, maintaining, and troubleshooting Palo Alto High Availability environments.
Advanced understanding of HA1, HA2, HA3, configuration synchronization, session synchronization, failover behavior, link monitoring, path monitoring, peer health, and recovery processes.
Strong expertise in TCP/IP, IPv4/IPv6, DNS, DHCP, ARP, routing, NAT, VPNs, and packet-level troubleshooting.
Demonstrated ability to investigate TCP handshakes, resets, retransmissions, MTU/MSS issues, asymmetric routing, connection timeouts, and firewall session behavior.
Extensive experience with Cisco Catalyst and/or Cisco Nexus switching technologies.
Strong knowledge of enterprise switching and routing, including VLANs, trunking, STP/RSTP/MST, EtherChannel, HSRP/VRRP, routing protocols, ACLs, QoS, and switch-security controls.
Proven experience designing or implementing network segmentation and microsegmentation solutions.
Working knowledge of Cortex XSIAM, Strata Logging Service, security-event correlation, alert investigation, XQL Search, and firewall log ingestion.
Ability to lead technical design discussions, independently manage complex workstreams, and communicate risks and recommendations to technical and nontechnical stakeholders.
Strong documentation, change-management, incident-management, and root-cause-analysis skills.
Clearance Required: Ability to obtain and maintain a Public Trust clearance.

Technologies

Palo Alto Networks, PAN-OS, Palo Alto Panorama, HA1, HA2, HA3
Cisco Catalyst, Cisco Nexus, GlobalProtect, IPsec VPN
Cortex XSIAM, Strata Logging Service, XQL Search, WildFire, App-ID, URL Filtering, Threat Prevention, DNS Security, NAT
STP, RSTP, MST, EtherChannel, HSRP, VRRP, VLANs, QoS, MTU, MSS
Python, Ansible, Terraform, REST APIs
Prisma Access, Prisma Cloud, Cortex XDR, Cortex XSOAR
Cisco ISE, Cisco ACI, SD-Access
Fortinet Security Fabric, FortiGate, FortiManager, FortiAnalyzer
AWS, Azure, Google Cloud Platform, SIEM, SOAR, EDR/XDR, vulnerability-management, NDR, network-monitoring, ticketing platforms

Compensation and Location

Salary: USD 125,000 - 150,000 per year
Location: Fully remote in the United States

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1mo ago

Security Engineer

Advanced Image Inc. Remote 🌍 Remote

Remote

1mo ago Closed

$103k - $160k/yr Full time Cloud Security Cybersecurity Tools Endpoint Security

This position is no longer accepting applications (closed Sep 3, 2026).

Job Description

Advanced Image Inc. is hiring a Security Engineer to serve as a leadership member of the Met Council Information Security team. In this remote role, you will implement and support a broad set of information security tools and services, while providing thought leadership to help the organization stay ahead of evolving threats and technologies.

What you’ll be doing

Implement, configure, and tune security tools and services used at the Council.
Monitor the threat landscape and recommend technologies and controls to address emerging risks.
Integrate security solutions with infrastructure and applications; maintain runbooks.
Conduct health checks, upgrades, and patching; validate detections and coverage.
Work with IS teams to embed security by design, providing ongoing thought leadership.
Document configurations and operational procedures to support audits and compliance activities.
Provide knowledge transfer to support team readiness.

What you bring

Advanced certifications such as CISSP, CISM, CCSP, OSCP, or an equivalent credential.
5 years of experience in a Security role.
3 years of experience with security frameworks and compliance standards, including NIST, CJIS, HIPAA, PCI, GDPR, and CIS Controls.
3 years of experience working in zero-trust, cloud security, identity and access management (IAM), endpoint protection, and/or network segmentation.
Experience with identity governance, privileged access management, and multi-factor authentication solutions.

Tools and security areas you’ll work with

Certifications and frameworks: CISSP, CISM, CCSP, OSCP, NIST, CJIS, HIPAA, PCI, GDPR, CIS Controls
Security domains: zero-trust, cloud security, IAM, endpoint protection, network segmentation
Access security: identity governance, privileged access management, multi-factor authentication

Role details

Location: Remote

Compensation: $103,324.55 - $160,000.00 per year

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