Power Systems Engineer, Energy Storage San Francisco, California, United States

About Redwood Materials Redwood is localizing a global battery supply chain that seamlessly integrates recovery, reuse, and recycling—keeping critical minerals in circulation and driving the energy transition. Founded in 2019, we’re delivering low-cost and large-scale energy storage and producing battery materials in the U.S. for the first time, all from batteries we already have. Role: Power Systems Engineer, Energy Storage Responsibilities: Work with the product and controls design teams to translate power system requirements into site controller and inverter controller specifications, influencing 6 system and plant-level control architecture. Design, develop, and validate plant controller functions for battery energy storage systems including voltage regulation, frequency regulation, P–f and Q–V droop control, active/reactive power control loops, and fast frequency response. Ensure control algorithms meet utility, ISO, and IEEE requirements including ERCOT interconnection specifications and IEEE 2800 compliance. Build and strengthen in-house modeling capabilities for Redwood Energy’s products in PSCAD and PSSE, including model validation against field and controller‑hardware‑in‑the‑loop behaviors. Set up and execute CHIL testing on platforms such as RTDS, OPAL‑RT, or Typhoon HIL to validate inverter and site controller performance under grid disturbance and fault scenarios. Develop automation tools for PSCAD and PSSE for interconnection studies using Python, C, or C++. Desired Qualifications: MS or PhD in Electrical Engineering with specialization in power systems and control systems (PhD preferred). Strong foundation in classical and modern control theory including PID tuning, state‑space modeling, small‑signal stability analysis, and frequency‑domain analysis (Bode plots). Expert proficiency in MATLAB/Simulink for control algorithm development and testing. Experience developing and validating user‑defined inverter or plant controller models in PSCAD and/or PSSE. Hands‑on experience with inverter‑based resource modeling including grid‑forming and grid‑following control, PLL design, virtual inertia, and droop‑based power control. Solid understanding of synchronous machine dynamics, excitation and governor systems, and system‑level stability concepts (frequency stability, voltage stability, weak grid operation). Experience with real‑time simulation and CHIL environments (RTDS, OPAL‑RT, Typhoon HIL) is strongly preferred. Programming experience in Python, C, or C++ for model automation, controls integration, or testing workflows. Experience performing or supporting transmission‑level engineering studies such as transient stability, protection coordination, harmonics, and insulation coordination is a plus. Familiarity working with utilities, ISOs, or renewable project developers is a plus. Physical Requirements: Ability to perform the essential job functions consistently and safely in accordance with the ADA, FMLA and other federal, state and local standards, including meeting qualitative and/or quantitative productivity standards. Ability to maintain regular, punctual attendance consistent with the ADA, FMLA and other federal, state, and local standards. Working Conditions: Environment, such as office or outdoors. Ability to work in challenging working conditions which may include exposure to noise, dust, chemicals, and temperature extremes, while protected by PPE, for extended periods of time. Essential physical requirements, such as climbing, standing, stooping, or typing. Occasional work weekends, nights, or be on‑call as a regular part of the job. In accordance with California pay transparency laws, the salary range for this position is listed below. Actual compensation may vary based on a variety of factors, including experience, education, and skills.

$145,200 - $196,800 USD

The position is full‑time. Compensation will be commensurate with experience. We collect personal information (PI) from you in connection with your application for employment with Redwood Materials, including the following categories of PI: identifiers, personal records, professional or employment information, and inferences drawn from your PI. We collect your PI for our purposes, including performing services and operations related to your potential employment. If you have additional privacy‑related questions, please contact us at View email address on click.appcast.io. #J-18808-Ljbffr Redwood Materials, Inc.