Power Electronics Controls Engineer, Energy Storage

Redwood Materials

San Francisco, California

Full Time

Posted April 17, 2026

$160k - $253k

Energy Storage

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Job Description

The Power Electronics Controls Engineer at Redwood Materials is responsible for designing and implementing advanced control systems for large-scale Battery Energy Storage Systems, focusing on optimizing power conversion, system stability, and asset integration to support a sustainable energy grid.

Key Responsibilities

Design and optimize control algorithms for high-power Battery Energy Storage Systems (BESS) and multi-asset energy sites
Develop bidirectional DC/DC and AC/DC control schemes for industrial-scale energy storage
Build high-fidelity Digital Twins of power stages and grid environments to predict system behavior
Lead Hardware-in-the-Loop (HIL) testing environments to validate control firmware
Collaborate with battery and systems teams to implement control strategies that enhance performance and longevity of mixed-asset arrays
Partner with electrical, firmware, and thermal engineers to define the roadmap for resilient energy storage site controllers

Requirements

Educational qualification of MSc or PhD in Electrical Engineering with a specialization in Power Electronics Control Systems; MSc requires 3 years of relevant industry experience, PhD preferred.
Deep theoretical and practical mastery of high-efficiency power conversion topologies, including resonant topologies such as LLC, CLLC, DAB, and advanced multi-level architectures like Flying Capacitor (FC) and Active Neutral Point Clamped (ANPC).
Proven ability to design robust closed-loop controllers using control theory techniques such as Bode, Nyquist, and State-Space, and implement them effectively on digital signal processors (DSPs) or microcontrollers.
Expert-level proficiency in MATLAB Simulink and PLECS for modeling and simulation of power systems and control algorithms.
Strong proficiency in C programming for real-time embedded systems.
Experience with Python for automation, scripting, and data analysis.
Proactive, self-driven attitude with the ability to navigate the ambiguity of a fast-paced R&D environment, including building frameworks and writing code.
Familiarity with grid-interconnection codes such as IEEE 1547 and UL 1741, and understanding of their implications for controls development.