OT Systems Engineer

ON.energy 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 software, ON.energy develops projects worldwide that set new benchmarks for resilience.

Location: Remote with up to 50% required travel to project sites

Role Summary

The OT Systems Engineer is responsible for deploying, configuring, and supporting operational technology (OT) networks for utility-scale Battery Energy Storage System (BESS) projects. This role is critical to successful commissioning and system handover, ensuring reliable communications between control systems, EMS, PCS, BMS, SCADA, and remote monitoring platforms.

This is a field-facing, deployment-oriented role focused on bringing new projects online.

Key Responsibilities

Deploy and configure OT network infrastructure for BESS projects, including switches, routers, firewalls, cellular devices, and site communications equipment

Support commissioning activities by ensuring reliable connectivity between EMS, PCS, BMS, protection relays, meters, and SCADA systems

Configure network segmentation, VLANs, routing, and secure remote access appropriate for OT environments

Troubleshoot network and communication issues during commissioning and early operations

Work closely with Deployment Engineers, Controls Engineers, EMS teams, and Field Commissioning teams to resolve system integration issues

Support site bring-up, factory acceptance testing (FAT), site acceptance testing (SAT), and handover to service teams

Document site network architectures, configurations, and as-built drawings

Contribute to the development of standardized network designs, templates, and deployment procedures

Support remote monitoring, data acquisition, and secure connectivity to central monitoring platforms

Travel to project sites as required during deployment and commissioning phases

Required Experience & Skills

Experience deploying OT or industrial networks in the field (power, renewables, utilities, manufacturing, oil & gas, or similar)

Strong understanding of TCP/IP networking fundamentals in operational environments

Hands-on experience with industrial networking equipment (switches, routers, firewalls)

Familiarity with SCADA, PLCs, HMIs, EMS, or industrial control systems

Ability to troubleshoot across network, software, and controls boundaries

Comfortable working in commissioning environments with incomplete information and time pressure

Willingness to travel to project sites during deployment phases

Preferred Experience

Experience with utility-scale BESS, solar, wind, or substation environments

Experience with cellular networking, VPNs, and secure remote access for OT systems

Familiarity with IEC 61850, Modbus, DNP3, or similar protocols (high-level understanding)

Experience supporting commissioning teams in the field

Background bridging IT networking concepts into OT environments

What Success Looks Like (6–12 Months)

New BESS sites are brought online with stable, secure network connectivity

Commissioning timelines are supported, not delayed, by network readiness

Network issues are resolved quickly and collaboratively during deployment

Site documentation and standards improve over time

Field and commissioning teams trust this role as a reliable partner

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For US-based roles - What you’ll 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 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 [email protected]

Benefits vary by role and location and are subject to change.

Agency Notice: ON.energy 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 ON.energy. No placement fees or compensation will be paid for unsolicited candidate submissions.