Field Network Technician - BESS

The BESS Field Network Technician is responsible for deploying, configuring, and maintaining field-level communications infrastructure for Battery Energy Storage Systems (BESS) located within Data Centers. This role is highly technical and hands-on, requiring deep knowledge of networking, industrial protocols, controls, and OT/SCADA systems. The technician will support commissioning, troubleshooting, and secure connectivity for distributed site networks across utility-scale renewable energy and energy-storage deployments.

Network Deployment & Configuration

• Collaborate with control systems, SCADA, EMS, IT, cybersecurity, and commissioning teams to ensure complete, secure, and reliable connectivity for field assets.

• Specify, deploy, and configure routing, switching, wireless, and security hardware (Cisco, Fortinet, Ubiquiti, Cradlepoint, etc.).

• Implement segmented OT networks including VLAN management, VPN configuration, firewall policies, and redundant network pathways.

• Integrate and support industrial communication protocols such as Modbus TCP, Modbus RTU, DNP3, MQTT, OPC-UA, and vendor-specific interfaces.

• Support commissioning of BESS, SCADA servers, RTUs/PLCs, and EMS platforms.

• Establish communication between field devices, HMIs, sensors, relays, networking gear, and remote operations centers.

• Validate I/O, device polling, SCADA mappings, and command pathways between site-level control systems.

• Diagnose issues across hardware, software, and protocol layers in active construction and live plant environments.

• Analyze packet flows, latency, port conflicts, routing loops, and device misconfigurations using industry tools (Wireshark, SolarWinds, etc.).

• Provide remote access and secure tunneling support for engineering, OEMs, and operations teams.

Cybersecurity & Compliance

• Implement cybersecurity controls aligned with NERC CIP, NIST 800-82, ISO/IEC

• Monitor, log, and mitigate vulnerabilities in OT network infrastructure.

Documentation & Quality

• Maintain as-built network diagrams, IP addressing plans, fiber/copper maps, and equipment inventories.

• Update network and control architecture drawings in coordination with SCADA/Engineering teams.

• Follow strict change-management and version-control processes.

Do you have experience in VLAN?, * Bachelor’s degree in Network Engineering, Electrical Engineering, Computer Engineering, or a closely related technical field.

• 3+ years of hands-on network engineering experience in project-based, industrial, utility, or field-deployment environments.

• Proven experience designing, commissioning, or deploying project networks (not only operations or enterprise IT support).

• Strong understanding of networking fundamentals and protocols: TCP/IP, BGP, OSPF, STP, VLANs, VPNs, NAT, DHCP, DNS.

• Experience working with OT, SCADA, industrial controls, or power-system environments.

• Ability to read, interpret, and create network, single-line, and control architecture drawings.

• Strong communication skills with the ability to interface across technical and non-technical teams.

• Willingness to travel up to 80% for commissioning, site integration, FAT/SAT, and network deployment.

Preferred Qualifications

• Certifications such as CCNP, CCIE, Palo Alto PCNSE, Fortinet NSE4+, CompTIA Security+, GICSP.

• Direct experience with BESS, utility-scale solar, SCADA, EMS, RTAC/PLC systems, or electrical power infrastructure.

• Background in renewable energy, utilities, critical infrastructure, industrial automation, or data centers.

• Experience with structured cabling, fiber termination/testing, OT network segmentation, or substation-grade networking equipment.

Pulled from the full job description

• Health insurance
• 401(k) matching
• Paid time off
• Vision insurance
• Dental insurance
• Life insurance
• Paid holidays, * 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 you’ll 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: ON.energy 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 recruitment@onenergystorage.com
• Benefits vary by role and location and are subject to change.

ON.energy is building the power infrastructure that makes the AI era possible. As AI demand surges past what the grid and traditional data centers can support, ON.energy provides a new class of power technology proven at gigawatt scale and trusted by the world’s leading cloud and AI companies. Our systems are already deployed across 2.5 GW of hyper-scale campuses, validated by top U.S. national labs, and certified for grid-safe operation by major utilities. With real products in the field, we’re scaling faster than the grid can, transforming power from a bottleneck into a competitive advantage for the companies building the future.