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Open nowPosted 75 days ago

Coulomb Solutions Inc.- Sr Electrical Engineer – EV Power Systems & Energy Integration

ignite-hr-solutions14 open roles

Where
Livermore, California, United States
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Your applicationOpen nowCoulomb Solutions Inc.- Sr Electrical Engineer – EV Power Systems & Energy Integrationignite-hr-solutions · Livermore, California, United States

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The clock on this job

Early applications get read.

8.0% of postings close within 7 days. Measured by our own scanner across the market. ignite-hr-solutions postings stay open a median of 2 days.

Share of postings closed within
  1. 1.6%1 day
  2. 3.6%3 days
  3. 8.0%7 days
  4. 15.0%14 days
  5. 34.2%30 days
This job: posted 75 days ago

ignite-hr-solutions median: 2 days open

The posting

About our Client:

At Coulomb Solutions Inc., we are on a mission to help transform the world by enabling the fast adoption of commercial electric vehicles powered by green, sustainable energy. As a leading supplier of lithium-iron-phosphate battery systems and EV components, CSI is at the forefront of advancing technologies that are shaping the future of transportation. Headquartered in Livermore, CA, we are expanding our manufacturing footprint, and we want YOU to be part of our growing, dynamic team!

Why CSI?

  • Join an exciting, innovative company dedicated to environmental sustainability.
  • Work in a fast-paced, collaborative environment that values your input and ideas.
  • Contribute to the transition to a pollution-free planet while advancing your career.

The Role:

The Sr Electrical Engineer is responsible for the design, development, and validation of medium-voltage electrical systems and components used in Battery Energy Storage Systems (BESS) and commercial electric vehicle (EV) platforms. The role focuses on component design/development/validation and system integration of components such as inverters, converters, wiring harnesses, transformers, charging systems and power distribution equipment. Senior EE will work on the development of both of EV-related systems and energy systems. The vehicle systems include new electric drive systems for heavy-duty vehicles, including trucks, buses, boats, trains, port equipment, airport GSE, and other commercial vehicle systems. CSI’s also develops a line of BESS products to support transportable vehicle charging and grid support at temporary power locations. Strong experience in heavy duty vehicle systems and BESS functions such as grid charging, grid forming and following, export power, and knowledge of AC grid interaction, hybrid energy architectures, and compliance with industry standards such as UL1973, UL9540/UL9540A, and UL508.

Drive the Future of Commercial Vehicle Electrification

Are you ready to electrify the transportation industry? We're looking for a passionate and innovative Electrical Design Engineer to help shape the future of electrified commercial vehicles. This is more than a job—it's your chance to collaborate with forward-thinking customers and help bring cutting-edge electrical components to life.

As a key member of our Electrification Engineering Team, you'll lead the design and validation of high-voltage (HV) electrical components—from battery energy storage systems to HV junction boxes, controllers, inverters, heaters, harnesses, and more. You’ll work hand-in-hand with customers, suppliers, and internal experts to accelerate the development and application of advanced electrification solutions.

Key Responsibilities

  • Design, develop, and validate medium-voltage(12–2000V) electrical subsystems for use in EV power platforms and stationary energy solutions.
  • Specify and integrate components including inverters, converters, power distribution units, transformers, AC-DC and DCDC power modules, charging systems, lithium and sodium batteries, power distribution panels, and harnesses/connectors.
  • Ensure all designs comply with relevant industry standards and certifications, including UL1973, UL508, UL9540A, and applicable grid codes.
  • Conduct 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 the integration of CSI products into customer applications.
  • Create and maintain technical documentation, including schematics, interface specifications, wiring diagrams, test plans, and validation reports.
  • Support testing and commissioning activities, including field validation, issue troubleshooting, and system optimization.
  • Participate in cross-functional collaboration with mechanical, software, and controls engineers, as well as suppliers and customers.
  • Support cost estimation, BOM 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 competitive systems.

Qualifications:

  • Bachelor's degree in Electrical Engineering or other technology related field required. Master’s or higher degree preferred.
  • Minimum 5 years (7-10 desired) of professional experience in medium-voltage electrical system design or energy system integration.
  • Knowledge of high-power electrical systems for both mobile and stationary applications
  • Experience working with battery energy storage systems (BESS), microgrids, and high-power vehicle charging systems
  • Knowledge of medium voltage 600-1000V safety and design standards
  • Experience with commercial EVs, heavy-duty vehicle electrification, or mobile power systems.
  • Exposure to renewable energy systems (solar, wind, generator hybrid)
  • Familiarity with UL certification processes, including UL1973, UL9540A, and UL508.
  • Proficiency in electrical design tools and simulation platforms (e.g., AutoCAD Electrical, PLECS, Simulink, MATLAB).

Physical Job Requirements:

  • The position is expected to access, enter, and retrieve data by using a computer terminal. The position is expected to require hands-on operation/use of laboratory test and prototyping equipment. Some lifting of test equipment and battery modules will be required.

Location: This position is on-site in Livermore, CA. Travel: This job will require some travel to visit suppliers, customers, and CSI locations as needed.

Hours, Benefits & Compensation:

Compensation Range: $150k - $200k, depending on experience and qualifications.

Benefits include:

  • Medical, dental, and vision insurance
  • 401(k) with company matching
  • Paid time off

Office Hours: 8:00 AM - 5:00 PM (Monday - Friday)

Why Join Us?

At CSI, we don’t just offer a job; we offer an opportunity to be part of something bigger. You’ll play a key role in our growth, work alongside passionate and skilled professionals, and help us make a lasting impact on the world. We look forward to bringing your unique skills and perspectives to our team as we continue to shape the future of electric vehicles.

Are you ready to make a difference? Apply now to join our team and help drive sustainable innovation in the world of electric vehicles!

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