Coulomb Solutions Inc.- Sr. Electrical Power Systems Engineer

Ignite HR Solutions and our Clients • Livermore, CA

17d • Onsite

About The Position

Coulomb Solutions Inc. (CSI) is seeking a Sr. Electrical Power Systems Engineer to design, develop, integrate, and validate medium-voltage electrical systems and components for Battery Energy Storage Systems (BESS) and commercial electric vehicle platforms. The work spans mobile and stationary applications, including heavy-duty vehicles such as trucks, buses, boats, trains, port equipment, and airport ground support equipment, as well as transportable BESS products for vehicle charging and grid support.

The engineer will lead electrical component design and validation and collaborate with customers, suppliers, and internal engineering teams to bring electrification solutions into customer applications. Relevant systems and components include inverters, converters, wiring harnesses, transformers, charging systems, power distribution equipment, batteries, controllers, heaters, and power modules. The role requires knowledge of AC grid interaction, hybrid energy architectures, grid charging and grid-forming/following functions, and applicable industry standards.

This is an on-site position in Livermore, California, with some travel to suppliers, customers, and CSI locations as needed. Compensation is $150,000–$200,000, depending on experience and qualifications. Office hours are 8:00 AM–5:00 PM, Monday through Friday.

Requirements

• Bachelor's degree in Electrical Engineering.
• At least 5 years of professional experience in medium-voltage electrical system design or energy system integration; experience of 7–10 years is desired.
• Knowledge of high-power electrical systems for mobile and stationary applications.
• Experience with battery energy storage systems (BESS), microgrids, and high-power vehicle charging systems.
• Knowledge of 600–15kV safety and design standards.
• Familiarity with UL certification processes, including UL1973, UL9540A, and UL508.
• Proficiency with electrical design tools and simulation platforms such as AutoCAD Electrical, PLECS, Simulink, or MATLAB.
• Ability to access, enter, and retrieve data using a computer terminal.
• Ability to operate laboratory test and prototyping equipment hands-on.
• Ability to lift some test equipment and battery modules.
• Ability to travel to suppliers, customers, and CSI locations as needed.

Nice To Haves

• Master’s degree or higher.
• Exposure to renewable energy systems, including solar, wind, and generator hybrid systems.

Responsibilities

• Design, develop, and validate medium-voltage (12–2000V) electrical subsystems for EV power platforms and stationary energy solutions.
• Specify and integrate inverters, converters, power distribution units, transformers, AC-DC and DC-DC power modules, charging systems, lithium and sodium batteries, power distribution panels, harnesses, and connectors.
• Ensure designs comply with relevant industry standards, certifications, and applicable grid codes, including UL1973, UL508, and UL9540A.
• Perform electrical system-level calculations, including load flow, short-circuit, fault protection, thermal analysis, and grounding strategies.
• Interpret AC grid requirements and apply system-level knowledge to integrate CSI products into customer applications.
• Create and maintain schematics, interface specifications, wiring diagrams, test plans, and validation reports.
• Support testing and commissioning, including field validation, troubleshooting, and system optimization.
• Collaborate with mechanical, software, and controls engineers, suppliers, and customers.
• Support cost estimation, bill of materials development, and trade-off analysis for component selection and system design.
• Provide mentorship and technical guidance to junior engineers and technicians as required.
• Maintain awareness of emerging industry standards, energy technologies, and competing systems.

Benefits

• Medical insurance
• Dental insurance
• Vision insurance
• 401(k) with company matching
• Paid time off

What This Job Offers

• Job Type: Full-time
• Career Level: Senior