Lead Network Engineer

TerraGen Solar

Lead Network Engineer responsible for designing and implementing secure network infrastructures at Terra-Gen. Oversee fleet-wide network technologies for renewable energy systems compliance and effectiveness.

Posted 6/9/2026full-timeTehachapi • California • 🇺🇸 United StatesSenior💰 $150,000 per yearWebsite

Tech Stack

Tools & technologies

Cyber SecurityFirewallsSwitching

About the role

Key responsibilities & impact

Design and architect secure, scalable enterprise and operational technology (OT) network infrastructures for new renewable energy sites, including wind, solar, and battery energy storage systems.
Develop standardized Layer III network architectures, including dynamic routing protocols, inter-VLAN routing, redundancy strategies, and high-availability designs for complex, multi-site environments.
Evaluate existing network architectures across the fleet, identify design deficiencies, and develop strategic improvement and modernization plans to enhance resiliency, scalability, and security.
Serve as the technical authority for Cisco and Hirschmann routing and switching platforms, ensuring configurations align with enterprise architecture standards and operational requirements.
Lead the design and implementation of fleetwide network and security technologies, including identity and access management (SSO), Cisco firewall platforms, and network monitoring/visibility tools to enhance security, standardization, and operational insight across all sites.
Design, implement, and optimize firewall rule sets and network access control policies across the fleet, ensuring proper segmentation, least-privilege access, and alignment with cybersecurity best practices.
Ensure all network designs and modifications comply with applicable NERC CIP standards, cybersecurity controls, and industry best practices.
Conduct architecture reviews for new site integrations, major upgrades, and infrastructure expansions to ensure consistency and long-term sustainability.
Collaborate with SCADA engineering, cybersecurity, IT, operations, and external vendors to align network infrastructure with telemetry, control system, and enterprise data requirements.
Develop and maintain enterprise network standards, IP addressing schemes, configuration templates, and documentation frameworks.
Lead root cause analysis of complex network issues and implement long-term corrective design solutions rather than temporary fixes.
Develop and enforce enterprise standards, templates, and deployment strategies to support consistent, scalable rollout of network infrastructure and security technologies across the fleet.
Provide technical guidance and mentorship to network engineers while maintaining architectural governance across all projects.
Participate in strategic planning initiatives to support long-term network modernization and fleet-wide standardization efforts.
Adhere to all Terra-Gen safety policies, procedures, and standards while actively contributing to the continuous improvement of the Terra-Gen safety culture.
Promote a strong safety-first mindset by identifying hazards, following established safe work practices, and supporting operational excellence across all activities.
Take immediate and appropriate corrective action in response to emergency situations to minimize safety risks, equipment damage, and operational downtime.
Participate in the department’s on-call support rotation. Ability to travel up to 25% or more if required.

Requirements

What you’ll need

Bachelor’s degree in Electrical Engineering, Computer Science, Information Technology, Information Systems, or a related technical field, or equivalent combination of education and relevant work experience.
7+ years of experience in network engineering, including experience designing and supporting complex enterprise and OT network environments in utility-scale, renewable energy, industrial, or similarly regulated critical infrastructure sectors.
Demonstrated experience designing and implementing Layer III network architectures, including dynamic routing protocols (OSPF, BGP), inter-VLAN routing, redundancy strategies, and high-availability configurations.
Advanced hands-on experience with Cisco routing, switching, firewalls, and VPN technologies.
Strong experience with Hirschmann industrial networking equipment and ruggedized OT network deployments.
Deep understanding of LAN/WAN architectures, segmentation strategies, and secure remote access frameworks.
Strong knowledge of NERC CIP cybersecurity requirements and experience designing compliant network architectures and security controls.
Proven ability to lead and execute fleetwide deployment of network and security technologies, including Single Sign-On (SSO), Cisco firewall platforms, and enterprise network monitoring/visibility tools across multi-site environments.
Experience evaluating existing network infrastructures and developing modernization or improvement roadmaps.
Working knowledge of industrial communication environments supporting SCADA, EMS, and control systems.
Cisco CCNA required; Cisco CCNP strongly preferred.
Relevant cybersecurity certifications (CISSP, GIAC, or similar) are a plus.
Authorized to work in the United States.

Benefits

Comp & perks

medical
dental
vision
short and long-term disability
life insurance
an employee assistance program
paid time off
paid holidays
401(k) retirement savings plan with employer match

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

network engineeringLayer III network architecturesdynamic routing protocolsinter-VLAN routingredundancy strategieshigh-availability configurationsfirewall rule setsnetwork access control policiesLAN/WAN architecturessecure remote access frameworks

Soft Skills

technical guidancementorshipcollaborationstrategic planningproblem-solvingsafety-first mindsetcontinuous improvementleadershipcommunicationroot cause analysis

Certifications

Cisco CCNACisco CCNPCISSPGIAC