OT Network Engineer: Greenfield Infra & Secure Access

Jobtailor; Dallas (TX); On-site; USD 110,000 - 160,000; Full time

Job summary

Jobtailor is seeking a seasoned Network Engineer to build and secure OT and IT backbones connecting clean energy sites to corporate systems and the grid. The role serves as the on-site technical authority for greenfield deployments, deploying industrial switches, Palo Alto firewalls, and routing across new sites.

You will implement IT/OT segmentation per Purdue model, manage Site-to-Site VPNs and ZTNA, and lead on-site commissioning with vendors while collaborating with IT, SCADA, and Field

Qualifications

• Bachelor's degree in network/IT/CS or equivalent industrial field experience.
• 5+ years of OT-focused network/infrastructure experience.
• Hands-on with Palo Alto, Cisco, Hirschmann hardware.
• Experience IT/OT segmentation standards, Purdue model.
• Experience managing S2S VPN, ZTNA, and jump-server remote access architectures.
• Experience troubleshooting SCADA/Ignition network layers.
• Experience deploying Nozomi, Claroty, or Dragos OT threat detection platforms.
• Experience with CrowdStrike endpoint detection.
• Willingness to travel up to 50%.

Responsibilities

• Build and secure physical and logical communication backbones connecting utility-scale clean energy facilities to corporate systems and the grid.
• Operate as the primary on-site technical authority for greenfield infrastructure deployments.
• Deploy and configure industrial switches, Palo Alto firewalls, and routing infrastructure across new clean energy sites.
• Establish IT/OT network segmentation architectures following industry best practices and NERC CIP controls.
• Administer secure remote access solutions, including Site-to-Site VPNs, ZTNA, and dedicated jump servers.
• Integrate and manage OT Network Intrusion Detection Systems and CrowdStrike endpoint protection across remote locations.
• Diagnose and resolve industrial network issues affecting SCADA Ignition connectivity, RTU telemetry, and field sensors.
• Optimize site-level network performance, manage bandwidth, and validate failover.
• Lead on-site commissioning and integration, directing vendor activities and physical network handoffs.
• Collaborate with IT, SCADA, and Field Operations on standardized network configuration, documentation, and monitoring procedures.

Skills

Network Engineering

IT/OT Segmentation

SCADA/Ignition Troubleshooting

Palo Alto Firewall Management

CrowdStrike Endpoint Detection

Education

Bachelor's degree in Network Engineering, Information Technology, Computer Science, or equivalent industrial field experience

Tools

Palo Alto Firewalls

Cisco Network Hardware

Jump Servers

ZTNA Solutions

SCADA Systems

Job description

Jobtailor is seeking a seasoned Network Engineer to build and secure OT and IT backbones connecting clean energy sites to corporate systems and the grid. The role serves as the on-site technical authority for greenfield deployments, deploying industrial switches, Palo Alto firewalls, and routing across new sites.

You will implement IT/OT segmentation per Purdue model, manage Site-to-Site VPNs and ZTNA, and lead on-site commissioning with vendors while collaborating with IT, SCADA, and Field