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.

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

• Serve as the primary technical lead for EMT modeling activities. Define study scopes, develop workplans, and coordinate timelines across internal engineering teams and external stakeholders (utilities, ISOs, consultants) to support interconnection applications and compliance milestones.
• Oversee the development, validation, and maintenance of detailed EMT models of ON.energy’s energy‑storage systems in PSCAD, PSSE, and equivalent platforms, ensuring contractor models reliably represent inverter controls, protection schemes, and plant‑level behavior in both steady‑state and transient conditions.
• Perform and review EMT studies required by transmission providers and ISOs, including fault response, frequency and voltage ride‑through, sub‑synchronous resonance screening, and weak‑grid stability assessments. Prepare technical reports and present findings to utilities and grid operators.

• Verify that ON.energy’s products meet applicable grid codes and interconnection standards (IEEE 2800, NERC, regional ISO requirements) and customer‑specific performance specifications through simulation and analysis.
• Produce clear, detailed compliance reports for customers, regulators, and internal stakeholders, documenting study assumptions, model configurations, simulation results, and required mitigations or design modifications.
• Serve as a technical point of contact for customer and utility engineering teams during interconnection and commissioning processes, addressing modeling questions and resolving compliance gaps.

• Partner with the controls engineering team to translate EMT study findings into control system requirements and tuning recommendations, supporting the design and validation of plant control strategies to prototype higher‑layer functions in the ON.energy EMS.
• Collaborate with test engineers to correlate control simulation predictions with hardware‑in‑the‑loop (HIL) and field test results, identifying discrepancies, refining models, and closing the loop between simulation and measured performance.
• Define simulation‑based test cases and acceptance criteria that feed into HIL and lab validation plans, review test data against model predictions, and recommend firmware or controls adjustments.

• Use transient and dynamic modeling to evaluate the impact of proposed hardware changes (inverter topology, filter design, protection settings) on system‑level grid performance before physical prototyping.
• Conduct parametric sweeps, contingency analyses, and failure‑mode simulations to identify design vulnerabilities and inform de‑risking priorities for new and existing product architectures.
• Translate modeling insights into actionable product improvement recommendations, partnering with R&D leadership, product engineering, and field teams to prioritize enhancements that improve grid compliance margins, reliability, and customer value.

• Partner with Policy Engagement leaders at ON to inform external policy development efforts…