Senior Hardware Engineer, Battery Systems & BMS (On-site)

QuantumScape Battery, Inc.; San Jose (CA); Hybrid; USD 137,000 - 209,000; Full time

Benefits offered by this job

Annual bonus

RSU/Equity package

Employee health care

ESPP

Job summary

QuantumScape is seeking a Hardware Engineer for Battery Systems to own the electrical design of the BMS, from AFE architecture to temperature monitoring. You will select protection devices and lead HV battery pack validation while coordinating with mechanical, firmware, and marketing teams.

The role demands 5–9+ years in battery/BMS design, and experience with Altium/Cadence, PSPICE, LTSpice, and Simulink. On-site in CA with a strong emphasis on safety and reliable power design.

Qualifications

• Bachelor's, Master’s, or Ph.D. with strong battery/BMS experience.
• 5+ years in battery pack or BMS design with prototype validation or production.
• Experience with high-voltage battery systems and safety standards (UL1973, UL9540A).
• Strong documentation skills: specs, diagrams, test reports.

Responsibilities

• Design BMS system with pack voltages up to 600V and >20kW.
• Create schematics and PCB for the BMS.
• Define connections for voltage sensing, balancing and temperature monitoring.
• Select protection devices based on worst-case operating conditions.
• Collaborate with mechanical engineers on heat sinks and wiring harnesses.
• Implement inrush current limiting features.
• Ensure hardware redundancy on critical protection functions.
• Collaborate with marketing to generate detailed engineering specifications.
• Perform design margin analysis and DFMEA.
• Specify design verification tests for safety and regulatory compliance.
• Support UL 1973 and UL 9540A certification activities.
• Coordinate with external design teams for proper battery integration.

Skills

Battery systems design

DFMEA

Team collaboration

Regulatory compliance focus

Education

Bachelor's degree

Master's degree

PhD

Tools

Altium

Cadence

PSPICE

LTSpice

Simulink

PSIM

Job description

QuantumScape is seeking a Hardware Engineer for Battery Systems to own the electrical design of the BMS, from AFE architecture to temperature monitoring. You will select protection devices and lead HV battery pack validation while coordinating with mechanical, firmware, and marketing teams.

The role demands 5–9+ years in battery/BMS design, and experience with Altium/Cadence, PSPICE, LTSpice, and Simulink. On-site in CA with a strong emphasis on safety and reliable power design.