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Battery Test Technician

Coreshell Technologies

Coreshell Technologies

Software Engineering
San Leandro, CA, USA
USD 26-35 / hour + Equity
Posted on Jul 25, 2025
Position: Battery Technician
Reports To: Battery Engineer III

Coreshell's metallurgical Silicon anode technology delivers high capacity, fast-charging, and superior safety. Our low-cost liquid-phase nano-coating addresses critical electrode-surface degradation issues and enables batteries with a Silicon-dominant anode that have higher energy density, superior intrinsic thermal safety, and significantly lower cost/kWh compared to current LIBs. Our Si anode material is 50% the cost of graphite and 100% domestically sourced. We strive to transform the global automotive market by enabling low-cost and long-range EVs as a first step towards net-zero sustainability in the near future.

Core Responsibilities: We are looking for a Battery Test Technician to support operations of our 4 MWh pilot line, including cell assembly and formation activities. The ideal candidate has a basic understanding of lithium-ion battery fundamentals and has experience setting up and maintaining lab and manufacturing equipment. Responsibilities include:

  • Assist in the execution of battery testing protocols, data collection, and analysis under the supervision of senior engineers
  • Perform systematic cell analyses including cell dissections and coin cell fabrication amongst other methods to determine failure mechanisms
  • Work with engineers and other technicians to operate cell assembly equipment
  • Routine maintenance on equipment including performing inspections, when necessary
  • Troubleshoot and resolve issues with cell assembly equipment and identify areas of improvement to increase pilot line throughput
  • General familiarity with battery manufacturing equipment a huge plus

Requirements:

  • B.S. degree or equivalent in Chemistry, Chemical Engineering, Materials Science OR an experience in a similarly relevant field with 2+ years of industrial experience.
  • Previous experience in a manufacturing environment preferred
  • Able to safely work in a manufacturing setting.
  • Strong verbal and written communication skills
  • Self-starter with an ability to operate on his/her own initiative
  • Creative problem solver and able to juggle multiple projects at any given time

Location & Benefits: San Leandro, CA. Full-time. Hourly rate is $26.00 - $35.00 per hour with additional stock incentives dependent on experience. Dental, vision, healthcare and 401(k) benefits are included. Applications will be screened as received.