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ALSO Logo ALSO · IT - Software Development

Senior Battery Engineer

United States, Palo Alto 170000.00 - 200000.00 USD / Year · Job Posted February 20, 2026
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Job Description

ALSO is looking for a Senior Battery Engineer to bridge the critical gap between mature product design and mass production. You will not just be designing; you will be the driving force that takes our battery packs from the lab to the assembly line. In this role, you will own the technical execution of battery modules and packs as they transition through validation and into launch.

Job Responsibility

  • Lead the Battery pack design improvements by building prototypes, DOE test plans inhouse and at CMs
  • Drive design for manufacturing improvements at component suppliers and FATP CMs
  • Ensure designs meet strict mechanical (shock/vibe), environmental (thermal/humidity), and safety (propagation/crush) requirements
  • Interpret test failures and drive design tweaks to ensure passing results
  • Act as the primary technical liaison with engineering headquarters and Battery Contract Manufacturers
  • Rigorously review First Article Inspections (FAI) and analyze CPK/PPK data to ensure the manufacturing process is stable and components meet specifications
  • Lead onsite execution (2-6 weeks/year travel) to resolve production bottlenecks
  • Define and scope lifecycle test needs associated with improving quality, and reliability components, assembly quality and reliability

Requirements

  • Mechanical Engineering degree with strong engineering and physics fundamentals
  • 5+ years in battery engineering with experience in cell selection, module hardware, and electrical interconnects
  • Proven ability to lead and execute distinct projects focused on advancing battery platform technologies
  • Deep understanding of design requirements for meeting battery safety and reliability standards (e.g., UN 38.3, UL 1642, SAE J2464)
  • Strong grasp of first principles thinking
  • Comfortable working in a high-velocity environment where priorities can shift rapidly

Nice to have

  • Expertise in 3D modeling and drafting in Catia V6
  • Structural and thermal simulation experience with Anys, Altair or similar CAE software
  • Familiarity with laser welding, wire bonding, and ultrasonic welding processes
  • Experience designing for high-volume automated assembly lines
  • Knowledge of battery safety standards (e.g., UN 38.3, UL 1642/1973)

What we offer

  • Robust health coverage
  • Excellent health, dental and vision insurance covered up to 100% by ALSO with FSA & HSA options
  • One Medical membership and dedicated insurance advocates
  • Rich fertility and family building benefits with Progyny
  • Flexible time off
  • 401(k) match
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