Power Systems Engineer, Hardware in Loop
Summary
Designs and implements microgrid control algorithms for battery energy storage systems (BESS), working with grid-following and grid-forming inverter control strategies. The role involves developing controls in MATLAB/Simulink and PSCAD, validating through hardware-in-the-loop simulation (RTDS/Typhoon), and supporting field deployment. Key technologies include power electronics, control systems the
About Redwood Materials
Redwood Materials was founded in 2017 by JB Straubel, co-founder and former CTO of Tesla, on a simple but radical idea: the critical minerals powering the energy transition already exist. They just need to come back. Today Redwood is the largest lithium-ion battery recycler in North America — recovering, refining, and redeploying critical minerals from end-of-life batteries back into the supply chain. On the energy side, Redwood has deployed the largest second-life battery project in the world, delivering power to AI data centers in months rather than years using proprietary energy architecture engineered entirely in-house. The company is profitable, the market it operates in is projected to grow 20 to 50 times over the next decade, and Redwood is the only company with the supply chain, the technology, and the operational scale to lead it.
Responsibilities will include:
- Design, develop, and validate power system and inverter control strategies using RTDS/RSCAD to meet project-specific grid requirements, including grid-forming and grid-following operation, ride-through, droop control, and microgrid performance.
- Develop and maintain Controller Hardware-in-the-Loop (CHIL) test platforms integrating RTDS with inverter controllers, site controllers, protection relays, metering, and communication interfaces; create test plans, automate test execution, analyze results, and maintain clear technical documentation.
- Build and validate real-time power system models of BESS, PV, inverters, transformers, generators, loads, and balance-of-plant equipment for both grid-connected and islanded applications.
- Perform dynamic and transient studies to evaluate system stability, black start, load pickup, inverter interactions, fault response, protection performance, and transitions between operating modes.
- Identify and resolve control, modeling, communication, and hardware-in-the-loop integration issues using first-principles power system analysis, simulation results, and structured troubleshooting.
- Support validation and benchmarking of PSCAD, PSS/E, and other offline simulation models against RTDS/CHIL results and field performance where applicable.
- Develop and expand in-house RTDS laboratory capabilities, including model integration, I/O scaling, communication interfaces, test automation, equipment selection, and standardized validation procedures.
Desired Qualifications:
- MS or PhD in Electrical Engineering, Power Systems, Controls, or a closely related discipline.
- Proven experience developing and supporting integrated hardware and software test environments, including hands-on troubleshooting and debugging.
- Ability to develop test automation, scripts, or control functions using Python, C, C++, or a similar programming language.
- Strong experience with engineering simulation tools such as PSCAD, MATLAB/Simulink, or comparable platforms.
- Solid understanding of electrical engineering fundamentals, circuit behavior, and control theory.
- Practical experience with communication networks, laboratory measurement equipment, and real-time simulation platforms such as RTDS, OPAL-RT, Typhoon HIL,
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.
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 privacy@redwoodmaterials.com.
Skills
As published by greenhouse · 4 questions
Basics
First Name, Last Name, Email, Phone, Resume/CV, Cover Letter
Short answers (2)
- Preferred First Name optional
- LinkedIn Profile optional
Pick from a list (2)
- Will you now or in the future require any type of immigration/visa sponsorship or support? Sponsorship or support for an immigration-related employment benefit includes but is not limited to the following: H-1B, H-1B1, J-1, TN, E-3, O-1, job portability benefit (I-485 Supplement Js), F-1 CPT, F-1 STEM OPT, or any employment authorization application that may require immigration support from Redwood Materials.
- Have you ever worked for Redwood Materials?