16640 Stagg Street | Van Nuys, CA 91406
(818) 734-5300 | CapstoneEnergyPlus.com
Power Electronics EngineerPosition Description
Date Issued: May 2026
Department: Systems, Software & Electrical Engineering
Reports to: Manager, Systems Software & Electrical Engineering
Location: Van Nuys, CA
Position Purpose: Capstone Energy+, INC. is seeking a Power Electronics Engineer to provide technical expertise for the development of power electronics, inverters, magnetic components, power supplies, and energy storage systems. This role participates in the requirements definition, design, fabrication, and testing of electronic modules used to generate electrical power - directly supporting Capstone's mission to deliver reliable, on-site clean energy solutions.
KEY RESPONSIBILITIESRequirements & Design - Participate with systems engineering to complete requirements analysis for power electronics subsystems.
- Document technical requirements for power electronics, inverters, magnetic components, power supplies, and energy storage systems.
- Perform computer-aided design of electronics and control electronics subsystems.
Development & Testing - Participate with engineers and technicians to design and test electronic subsystems that provide output electrical power.
- Participate in and direct the fabrication and testing of power electronics hardware where applicable.
- Execute automatic and manual testing of electronics and control electronics subsystems.
Cross-Functional Coordination - Coordinate with and/or supervise appropriate personnel from Engineering and Manufacturing to ensure electronics and control subsystems meet specifications.
- Collaborate with mechanical, thermal, and systems engineering on design integration and production readiness.
QUALIFICATIONSEducation & Experience - Bachelor of Science in Electrical Engineering required; MS or PhD preferred.
- 7+ years of hands-on experience designing and testing power electronic subsystems.
- Specific experience in the design and testing of power electronics for electrical power generation.
Technical Skills - Required - Demonstrated capability to design and test IGBT-based 30 kW-500 kW power inverters.
- Demonstrated capability to design and test high-voltage DC/DC converters.
- Knowledge and experience designing noise-immune power and control circuits, including EMI filter design and troubleshooting.
- Proficiency with power electronics simulation tools: PSIM Pro, MATLAB/Simulink, and PSPICE.
- Excellent background in the design of magnetic devices including generators, inductors, and transformers.
- Demonstrated capability in schematic design and PCB layout.
- Knowledge and experience with electronic component selection.
- Demonstrated interpersonal skills to collaborate within multidisciplinary design and production teams.
- Demonstrated leadership and communication skills; ability to supervise junior engineers.
Technical Skills - Preferred - Knowledge and experience developing Battery Management Systems for Lithium, Lead/Acid, and other battery chemistries.
- Familiarity with low-power supply design.
- Familiarity with Ansoft Finite Element Analysis tools.
- Real-time programming and debugging in C and assembly language.
- Capability to understand mechanical engineering, physical, thermodynamic, and chemical principles relevant to power system design.
- Experience with OrCAD and PADS for schematic capture and PCB layout.
- Familiarity with high-speed digital circuit design using microprocessors and DSPs (Microchip, TI, Motorola).
- Experience with HALT and HASS testing methodologies.
- Familiarity with motor drives and power supply design and test environments.
WHAT SUCCESS LOOKS LIKE - Power electronics subsystems delivered on schedule that meet or exceed performance specifications.
- Thorough, well-documented requirements and design records that support product quality and compliance.
- Reliable, efficiently designed magnetic components, inverters, and converters integrated across Capstone platforms.
- Cross-functional collaboration that accelerates development cycles and reduces rework.
- A test and validation culture that catches issues early and drives continuous product improvement.
WORK ENVIRONMENT - Work primarily performed in an office environment.
- Test cell environment - hearing protection and eye protection required.
- Exposure to high-power electrical systems and combustible fuel.
- Required to sit for extended periods; extensive computer use.
- Required to work within a test laboratory environment including bending, standing, and sitting.
- Minimal travel required.
- Willingness to work beyond a standard 40-hour workweek as required to meet schedule commitments.
This job description in no way states or implies that these are the only duties to be performed by the employee(s) incumbent in this position. Employee(s) will be required to follow any other job-related instructions and to perform any other job-related duties requested by any person authorized to give instructions or assignments.
All duties and responsibilities are subject to possible modification to reasonably accommodate individuals with disabilities. The requirements listed in this document are the minimum levels of knowledge, skills or abilities that the incumbent(s) must possess to successfully perform each duty proficiently. This document does not create an employment contract, implied or otherwise, other than an "at will" relationship.
Pay Range: $140,000 - $155,000 per year
