Principal Battery Design Engineer
Blue CurrentHayward, California
Full Time
Posted October 29, 2025
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Application opens on company website
Job Description
The role involves leading the design, development, and optimization of solid-state battery cells and pouches for automotive and consumer applications, transitioning from R&D to large-scale production, with a focus on safety, performance, and manufacturability.
Key Responsibilities
- Design and optimize cell pouches for energy storage applications, ensuring performance, safety, and manufacturability.
- Select and evaluate materials for cell pouch construction compatible with application requirements.
- Develop prototypes, conduct testing, and implement improvements to validate and refine cell designs.
- Lead cell engineering design, development, and qualification for next-generation solid-state pouch batteries.
- Own cell design plans, experiments, failure analysis, and development pathways for consumer and EV applications.
- Drive product development initiatives and lead technical projects for multi amp-hour cell designs.
- Define and own cell design specifications and test procedures for product validation.
- Collaborate with materials R&D and process engineering to select formulations and SOPs to meet performance and scalability goals.
- Coordinate system design concepts, thermal management, and compliance requirements from customers.
- Work with data analytics to characterize and optimize battery performance.
- Partner with manufacturing process engineering to ensure design economics and scalability.
- Manage and align on bill of materials (BOM) with product requirements.
Requirements
- Ph.D. or MS in chemistry, chemical or mechanical engineering, materials science, or related field.
- 5 years work experience with pouch, prismatic or VDA compliant batteries for automotive and consumer applications.
- Hands-on experience in scale-up manufacturing environments preferred.
- Proficiency in CAD software and simulation tools.
- Strong understanding of lithium based cells, cell components and their interactions inside the cell.
- Demonstrated experience on cell design, characterization and failure mode identifications.
- Experience assembling battery cells and developing new electrode and electrolyte formulations.
- Experience working with high-speed battery manufacturing systems.
- Track record of driving cell development roadmaps and customer-facing deliverables.
- Appreciation for and adherence to lab and work safety policies.
- Positive, can-do attitude and experience coaching and inspiring team to overcome technical challenges.
- Creative thinker with attention to detail.
- Strong communication skills and experience sharing results with team members and leadership.
Benefits & Perks
Compensation/salary range (not specified in the posting)
Work schedule (not specified in the posting)
Work environment perks (state-of-the-art headquarters and pilot line facility in Hayward, CA)
Opportunities to work on innovative, high-performance silicon solid-state batteries
Participation in cutting-edge battery development from R&D to large-scale production
Collaborative team environment with a shared passion for energy storage innovation
Potential for career growth in a fast-paced, technology-driven startup
Diverse and inclusive workplace committed to equal employment opportunity
Ready to Apply?
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