Senior Network Engineer

is building the backbone of energy and AI infrastructure powering grid-safe data centers and mission-critical facilities. The company supplies and operates hyperscale power systems that solve the toughest resilience challenges delivering custom solutions for AI data centers mission-critical facilities and front-of-the-meter assets. ON recently announced a 5GW partnership with 3GW currently under construction across multiple hyperscale data center campuses. With patented technology and proprietary softwaredevelops projects worldwide that set new benchmarks for resilience.

seeking a Senior Network Engineer to design secure and maintain network infrastructureofOperational Technology (OT) environments. This role requires deep expertise across network topologies troubleshooting and security with a strong preference for hands-on experience securing industrial control networks using Palo Alto firewalls and Moxa switches.

KEY RESPONSIBILITIES

• Design implement and maintainOT network architectures including LAN/WAN wireless and industrial network segments.
• Configure manage and troubleshoot Palo Alto next-generation firewalls to enforce network security policy and segmentation betweenOT zones.
• Deploy and maintain Moxa industrial switches and other ruggedized networking hardware in OT environments.
• Diagnoseand resolve complex network issues across routing switching and security layers minimizing downtime in production and industrial settings.
• Design and maintain VLAN structures subnetting schemes and IP addressing plans acrossOT networks.
• Configure and manage NAT VPN tunnels and site-to-site/remote access connectivity.
• Implement and maintain High Availability (HA) network designs to ensure resilience of critical infrastructure.
• Apply network security best practices including segmentation access control monitoring and hardening of OTnetworks.
• Collaborate with controls automation andcybersecurityteams to support integration of PLCs SCADA systems and industrial PCs onto the network.
• Document network designs standard operating procedures and change management records.

REQUIRED QUALIFICATIONS

• Expert-level knowledge of network topologies and structured troubleshooting methodology.
• Strong hands-on proficiency with TCP/IP VLANs routing switching subnetting and NAT.
• Demonstrated experience designing and supporting site-to-site and remote access VPNs.
• Solid understanding of network security principles and High Availability design.
• Experience working within Operational Technology (OT) environments and an understanding of IT/OT network segmentation.
• Bachelors degree in a related field or equivalent professional experience.

PREFERRED QUALIFICATIONS

• Hands-on expertise with Palo Alto firewalls (policy configuration App-ID segmentation VPN and monitoring).
• Experience deploying and managing Moxa industrial switches.
• Familiarity with Siemens PLCs and industrial control system architectures.
• Experience with SEL (Schweitzer Engineering Laboratories) protective relay and communication devices.
• Experience networking and supporting Industrial PCs in production/OT environments.
• Familiarity with Ignition SCADA platform and its network/architecture requirements.
• Proficiency administering both Windows and Linuxenvironments.
• Relevant certifications such as PCNSE CCNA/CCNP or similar are a plus.

CORE TECHNICAL SKILLS

is an equal opportunity employer. This job description is intended to convey information essential to understanding the scope of the role and is not exhaustive of all responsibilities skills or qualifications required.

For US-based roles - What youll get:

• Competitive salary annual performance-based bonus eligibility
• Medical dental and vision insurance
• 401(k) with company match
• Paid time off and company holidays

For Mexico-based roles - What youll get:

• Competitive salary annual performance bonus eligibility
• Christmas Bonus (Aguinaldo): 30 days
• Major medical expenses and life insurance
• Paid time off and holidays (per local policy)

For all roles:

• Professional development and growth opportunities
• Opportunity to grow with a mission-driven team shaping the future of clean energy
• Equal Opportunity: is committed to equal employment opportunity and to maintaining a work environment free of harassment discrimination or retaliation.
• Accommodations: If you need an accommodation during the application process email
• Benefits vary by role and location and are subject to change.

Agency Notice: does not accept unsolicited resumes from staffing agencies search firms or third-party recruiters. Resumes submitted without a fully executed Master Services Agreement (MSA) and a written request from an authorized member of our Talent Acquisition team will be considered the property of . No placement fees or compensation will be paid for unsolicited candidate submissions.