Senior Cell Integration and Pack Engineer

QuantumScape Corporation • CA

80d • $134,800 - $182,000

About The Position

QuantumScape is on a mission to transform energy storage with solid-state lithium-metal battery technology. The company’s next-generation batteries are designed to enable greater energy density, faster charging and enhanced safety to support the transition away from legacy energy sources toward a lower carbon future. The Battery Systems Development team builds and tests systems powered by QS cells. We’re a diverse, hands-on group of engineers who value fast learning and resourcefulness. We work closely with our cell, electrical testing, and product teams to deliver high impact prototypes and reference designs. QuantumScape is looking for a hands-on Senior Cell Integration and Pack Engineer to turn next‑generation battery cells into fully functional packs and demonstrator systems. You’ll own mechanical, electrical, and firmware integration so our customers and internal teams can evaluate breakthrough cell chemistry in real‑world devices. If you have experience in pack design and integration, and a passion for rapid prototyping and rigorous testing, you'll be an excellent fit on our team!

Requirements

• Engineering (or related field) degree and 5+ years industrial experience.
• 3+ years combined experience designing and/or testing packs or cells.
• Hands-on experience with battery cyclers (e.g. Arbin, Maccor), oscilloscopes, isolated differential probes, DMMs.
• Working knowledge of BMS architectures (AFE/ADC, fuel‑gauge, passive & active balancing, protection) and communication buses (CAN 2.0/FD, SMBus).
• Solid understanding of cell chemistries and architectures.
• Superb interpersonal skills, both written and oral.
• Strong interpersonal and organizational skills.
• Desire to work in fast-paced and constantly evolving environment.

Nice To Haves

• Experience integrating solid state cells and managing their unique constraints.
• CAD proficiency for mechanical/electrical layouts (e.g., SolidWorks, Altium/KiCad) and thermal simulation (ANSYS Icepak, COMSOL, or 6SigmaET).
• Familiarity with pack level compliance/validation workflows and environmental testing (HALT/HASS, IP ratings).
• Rapid prototyping methods for jigs, fixtures, and enclosures (CNC, 3D printing, laser cutting).

Responsibilities

• Translate cell electro‑mechanical constraints into module/pack layouts, interconnect schemes, and mechanical housings.
• Perform hands‑on prototyping including tab & ultrasonic/laser/spot welding, bus‑bar machining, harness and custom cable fabrication, potting, sealing, and enclosure builds in our in‑house lab.
• Select and tune BMS ICs, design wire harnesses, and high‑current connectors; validate with oscilloscopes, SMUs, battery cyclers, and HV probes.
• Run performance, safety, abuse, and environmental tests; analyze cycling & impedance data to guide design iterations.
• Collaborate with Cell, Product, and Safety teams; author build documentation, BoMs, and validation testing reports; mentor junior engineers and technicians.

Benefits

• Expected salary range for this role is from $134,800 to $182,000.
• Annual bonus and a generous RSU/Equity package.
• Employee paid health care.
• Employee Stock Purchase Plan (ESPP).

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: Bachelor's degree
• Number of Employees: 501-1,000 employees