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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Power Systems Engineer - R&D - **Company:** ONE STOP COLLECTIBLE CORP - **Location:** Houston, United States - **Contract:** Permanent contract - **Skills:** Testing (Software), Firmware, Hardware Design, Hardware-In-The-Loop Simulation, MATLAB, Real Time Simulation, Systems Integration, Model Validation - **Published:** September 4, 2026 - **Apply:** https://startup.jobs/principal-power-systems-engineer-rd-onenergy-9012678 ## About the Role * Education: Masters Degree or Ph.D. in Electrical Engineering, Power Systems Engineering, or a related technical discipline. * Experience: 12+ years of advanced power systems modeling experience, including EMT, RMS, dynamic modeling, inverter-based resources, BESS, large loads, or transmission-connected facilities. * Tools: Expertise with PSCAD, PSSE, PSLF, MATLAB/Simulink, and related simulation platforms; experience with HIL or real-time simulation platforms strongly preferred. * Grid requirements: Strong understanding of ISO and Utility interconnection requirements, MQT, NERC reliability standards, inverter-based resource requirements, and evolving large-load expectations. * Technical breadth: Fluency in inverter controls, protection settings, firmware behavior, EMS functions, UPS/BESS architectures, and hardware/software integration. * Leadership: Demonstrated ability to set technical direction, influence across engineering disciplines, review complex deliverables, communicate with external stakeholders, and create scalable engineering processes. ## Description The Principal Power Systems Modeling Engineer is ON.energy's technical owner for power system modeling, model validation, and grid performance assessment. This role sets modeling standards, leads high-impact simulation work, and ensures models accurately represent ON.energy hardware, controls, firmware, protection settings, and plant-level operating modes. The position supports product development, interconnection studies, grid requirements demonstrations, customer projects, and emerging large-load applications. It serves as a key technical bridge across R&D, Controls, Test, Product, Project Engineering, external consultants, customers, utilities, ISOs, and standards organizations. Key focus areas include EMT and dynamic modeling, ERCOT Model Quality Testing, evolving large-load ride-through requirements, hardware-to-model matching, Hardware-in-the-Loop and real-time simulation, and project-specific modeling support for ON.energy deployments. RESPONSIBILITIES Technical Modeling Leadership * Define modeling standards: Establish ON.energy's modeling philosophy, validation methods, governance processes, and quality expectations across EMT, RMS, transient, steady-state, HIL, and real-time simulation environments. * Own model lifecycle management: Ensure models remain aligned with released hardware, firmware, controls algorithms, protection settings, plant controls, and project-specific configurations. * Serve as technical authority: Provide expert judgment on model fidelity, validation evidence, simulation assumptions, and external model submissions. Project and Product Support * Lead technical execution: Develop, review, and approve EMT and dynamic models supporting interconnection studies, customer applications, product qualification, and grid requirements. * Support project modeling: Partner with Project Engineering on study assumptions, equivalent models, SLD representation, equipment settings, operating conditions, and data requirements. * Assess system performance: Evaluate ride-through behavior, weak-grid performance, harmonics, generator interations, startup behavior, control response, and large-disturbance response. Validation, HIL, and Hardware Matching * Ensure hardware-to-model alignment: Confirm models represent inverter behavior, BESS response, EMS functionality, firmware, protection, controls, and fielded product configurations. * Correlate models with evidence: Compare simulations against lab tests, HIL results, commissioning data, field measurements, disturbance records, and vendor model behavior. Grid Requirements, Consultant Oversight, and Technical Leadership * Lead grid requirements modeling: Serve as technical lead for ISO MQT, large-load ride-through evaluations, and evolving grid requirements. * Oversee external studies: Direct and review work performed by consultants and study partners, ensuring technical quality, traceability, and consistency with ON.energy standards. * Influence product and engineering direction: Translate modeling insights into recommendations for controls, firmware, hardware design, validation investments, customer applications, and roadmap priorities. * Mentor and represent: Guide engineers across modeling, controls, test, and project teams, and represent ON.energy in technical discussions with utilities, ISOs, consultants, customers, and industry groups. ## Related Videos - [Building a hypercar from scratch](https://www.wearedevelopers.com/videos/607-building-a-hypercar-from-scratch) - [Quantum Computing - The tiny and the big challenges](https://www.wearedevelopers.com/videos/934-quantum-computing-the-tiny-and-the-big-challenges) - [Playing Pong on a shoulder press machine](https://www.wearedevelopers.com/videos/100140-playing-pong-on-a-shoulder-press-machine) - [Leveraging Large Language Models for Legacy Code Translation: Challenges and Solutions](https://www.wearedevelopers.com/videos/1157-leveraging-large-language-models-for-legacy-code-translation-challenges-and-solutions) - [Software stack under and over the hood of the fastest accelerating car in the world](https://www.wearedevelopers.com/videos/221-software-stack-under-and-over-the-hood-of-the-fastest-accelerating-car-in-the-world) - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Data Science & more: The Lopez dilemma](https://www.wearedevelopers.com/magazine/10-data-science-more-the-lopez-dilemma) - [A Guide to Green Tech and Green IT Careers](https://www.wearedevelopers.com/magazine/374-a-guide-to-green-tech-and-green-it-careers) - [What is Software Engineering?](https://www.wearedevelopers.com/magazine/289-what-is-software-engineering) - [Top Characteristics of a Software Engineer](https://www.wearedevelopers.com/magazine/166-top-characteristics-of-a-software-engineer) - [Everything a Developer Needs to Know About MCP with Neo4j](https://www.wearedevelopers.com/magazine/604-everything-a-developer-needs-to-know-about-mcp-with-neo4j)