Bachelor's degree in Electrical or Mechanical Engineering or related field with 5+ years of experience, or a Master's degree with 3+ years
Knowledge of lithium-ion battery pack architecture and battery management systems
Experience with energy storage systems or hybrid/electric powertrain development
Proficient in writing clear, testable engineering requirements
Strong communication skills for cross-disciplinary technical alignment
Willingness to travel up to 10% of the time
Responsibilities
Lead cross-functional integration of OEM battery packs from intake to deployment
Own system-level architecture and derive subsystem requirements with design engineers
Define and maintain interfaces between OEM packs and energy storage systems
Facilitate technical discussions with OEMs and suppliers to resolve integration issues
Conduct DFMEAs, hazard analyses, and risk assessments for integrated packs
Ensure compliance with UL and industry standards for integrated systems
Benefits
Full-time position with opportunities for professional growth
Occasional travel to sites and vendors
Engagement in cutting-edge energy storage technology
Collaboration with cross-functional teams and external partners
Opportunity to influence system-level requirements and design decisions
Full Job Description
Position Summary:
The Senior Battery Systems Engineer leads the cross-functional integration of new OEM battery packs into the stationary energy storage system architecture within the Energy Storage engineering function. The role independently owns the system architecture, requirements, and interface definitions for each integrated pack, aligning mechanical, electrical, controls, power electronics, and software engineering on a common technical baseline. This role serves as the technical point of contact for external OEMs and suppliers on pack-level integration, adapting automotive packs to off-vehicle duty cycles with limited precedent. The position is reviewed at critical design decision points and is accountable for system-level requirements being complete, testable, and verified. This is a fully on-site role at 100 Hooper, with occasional travel to sites and vendors.
Essential Duties and Responsibilities
Leads cross-functional integration of new OEM battery packs from technical intake through validation and deployment
Owns system-level architecture, performance, and functional requirements for integrated packs and derives subsystem and component requirements with design engineers
Defines and maintains mechanical, electrical, communication, and software interfaces between OEM packs and the energy storage system
Leads technical discussions with OEMs and suppliers to obtain pack data, resolve integration issues, and agree on engineering solutions
Leads DFMEAs, hazard analyses, and risk assessments for integrated packs and tracks mitigations to closure
Ensures integrated systems comply with applicable UL and industry standards
Skills, Knowledge, and Abilities
Bachelor's degree in Electrical Engineering, Mechanical Engineering, or a related field and 5+ years of systems or design engineering experience, or a Master's degree and 3+ years
Working knowledge of lithium-ion battery pack architecture, battery management systems, and pack communication protocols (CAN, Modbus, Ethernet)
Experience with energy storage systems, hybrid or electric powertrain development, or PV system development
Ability to write clear, testable engineering requirements and manage them in a requirements management tool
Effective communication skills to lead technical alignment across engineering disciplines and with external OEMs
Ability to travel to sites and vendors up to 10% of time
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.
California Pay Range:
$160,000-$215,000 USD
The position is full-time. Compensation will be commensurate with experience.
