At ON.energy, we are proud to be an equal opportunity employer, offering a wide range of career opportunities for individuals passionate about driving the energy transition forward. Our culture is dynamic, innovative, and far from the traditional corporate mold. We are built on a foundation of customer satisfaction, teamwork, trust, and an unwavering commitment to excellence.
Joining ON.energy means advancing your career in the energy sector with exciting opportunities across many departments and skill-sets. We embrace diverse perspectives and are dedicated to equipping our team with the tools, resources, and support they need to thrive.
Be a part of a company that values your ideas, fuels your growth, and empowers you to make a meaningful impact in shaping the future of energy.
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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.
Location: Houston (hybrid) OR Atlanta (remote) with up to 40% travel to project sites as needed.
Role Overview
The EMS Deployment Engineer is responsible for deploying, configuring, and supporting Ignition-based Energy Management Systems (EMS) for utility-scale Battery Energy Storage System (BESS) projects. This role plays a critical part in commissioning, ensuring reliable system visibility, control, data flow, and integration between EMS, PLCs, PCS, BMS, and site networks.
Key Responsibilities
Required Qualifications
Preferred Experience
What Success Looks Like (First 6–12 Months)
For US-based roles - What you’ll get:
For Mexico-based roles - What you’ll get:
For all roles:
Ready to apply?
Apply to ON.energy
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.
Location: Alpharetta area, Hybrid on-site 3-4 days per week.
Role Overview
The Deployment Engineer is responsible for preparing, configuring, and validating BESS control, network, and EMS systems prior to shipment to project sites. This role ensures systems arrive site-ready, reducing commissioning risk, minimizing field rework, and accelerating site bring-up.
This position is factory-focused and hands-on, working closely with engineering, controls, EMS, and commissioning teams to deliver fully validated systems before field deployment.
Key Responsibilities
Required Qualifications
Preferred Experience
What Success Looks Like (First 6–12 Months)
For US-based roles - What you’ll get:
For Mexico-based roles - What you’ll get:
For all roles:
Ready to apply?
Apply to ON.energy
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.
Location: Atlanta area is preferred. Role will require travel to projects sites.
Role Summary
The Controls Engineer is responsible for deploying, configuring, and supporting control systems for utility-scale Battery Energy Storage System (BESS) projects. This role is central to commissioning success, ensuring reliable operation and integration of Siemens PLC-based control systems with EMS, PCS, BMS, protection systems, and site networks.
Key Responsibilities
Deploy, configure, and support Siemens PLC-based control systems for BESS projects
Support commissioning activities including system bring-up, integration testing, and site acceptance testing (SAT)
Troubleshoot PLC logic, communications, and I/O issues during commissioning and early operations
Integrate PLCs with EMS, PCS, BMS, protection relays, meters, and SCADA systems
Support communication protocols such as Modbus TCP/RTU, IEC 61850 (as applicable), and other OT interfaces
Collaborate closely with Network Engineers, Deployment Engineers, EMS teams, and Field Commissioning teams
Support factory acceptance testing (FAT) and field commissioning activities
Assist with developing standardized PLC configurations, templates, and commissioning procedures
Review and validate control system documentation, drawings, and as-built configurations
Travel to project sites during deployment and commissioning phases as required
Required Experience & Skills
Hands-on experience with Siemens PLC platforms (TIA Portal, S7-1500 / S7-1200 or similar)
Experience commissioning or supporting industrial control systems in the field
Strong understanding of PLC-based control architectures and OT systems
Experience integrating PLCs with external systems (EMS, SCADA, PCS, BMS, protection)
Ability to troubleshoot across controls, networking, and software boundaries
Comfortable working in fast-paced commissioning environments with time pressure
Willingness to travel to project sites during deployment and commissioning
Preferred Experience
Experience with utility-scale BESS, power generation, renewables, or substation environments
Familiarity with EMS platforms and grid-interactive systems
Experience supporting commissioning teams on live sites
Understanding of cybersecurity considerations in OT environments
Background working alongside EPCs, vendors, and OEMs
What Success Looks Like (6–12 Months)
Siemens PLC-based control systems are deployed reliably across new BESS projects
Commissioning timelines are supported through rapid issue resolution and system readiness
Control system integration issues are identified and resolved efficiently
Documentation quality and repeatability improve across deployments
Field and commissioning teams trust this role as a key technical partner
For US-based roles - What you’ll get:
For Mexico-based roles - What you’ll get:
For all roles:
Ready to apply?
Apply to ON.energy
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.
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
Required Experience & Skills
Preferred Experience
What Success Looks Like (6–12 Months)
For US-based roles - What you’ll get:
For Mexico-based roles - What you’ll get:
For all roles:
Ready to apply?
Apply to ON.energy
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