Lead Power Systems Engineer, R&D

Lead Power Systems Engineer, R&D

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.

The Lead Power Systems Engineer will direct power systems studies for ON.energy. This will spend the majority of their time planning, coordinating, and reporting of grid integration modeling efforts in support of interconnection studies, customer compliance verification, and ON.energy product improvement efforts. This role bridges simulation and hardware domains—translating EMT study findings into actionable controls development and hardware de-risking activities and allocating approximately a third of their time to policy interpretation, advisement, and influence.

Residing within the R&D team, the position fosters future growth and technology evolution by ensuring ON.energy's inverter-based products meet and exceed grid interconnection requirements while continuously advancing performance through model-driven insights.

Key Responsibilities

• EMT Modeling and Interconnection Support
• Customer Compliance Verification
• Controls Development and Validation Support
• Hardware De-risking and Product Improvement
• Policy Review and Advisement

Experience and Requirements

• Education:
  
  M.S. or Ph.D. in Electrical Engineering, Power Systems, or a closely related field.
• EMT Modeling
  
  Experience:
  
  5+ years of hands-on experience developing and executing EMT studies for inverter-based resources, ideally in PSCAD, EMTP, or equivalent platforms. Demonstrated track record of supporting interconnection applications for utility-scale BESS or renewable projects.
• Domain Expertise:
  Deep understanding of power electronics (inverters/rectifiers), Energy Storage Systems (BESS), grid-forming and grid-following control architectures, and grid interconnection standards (IEEE 2800, NERC FAC/MOD/PRC, regional ISO technical requirements).
• Controls and Simulation:
  Proficient in MATLAB/Simulink for controls development and analysis. Experience with HIL testing environments (e.g., Opal-RT, RTDS, Typhoon HIL) and familiarity with real-time simulation workflows.
• Technical Communication:
  Proven ability to prepare and present interconnection study reports to utilities, ISOs, and customers. Comfortable translating complex simulation results into clear, actionable recommendations for both technical and non-technical audiences. Ability to translate modeling, controls, and hardware; fluent in speaking "Simulation" to study engineers, "Controls" to firmware developers, and "Compliance" to utility and customer stakeholders.

Work Environment

This role location is flexible with periodic travel between ON.energy offices, national lab facilities (e.g., NLR), customer project sites, and utility/ISO technical meetings to advance modeling, compliance, and validation activities.

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