Process Engineer

Coreshell Technologies•San Leandro, CA

13d•$72,000 - $85,000•Onsite

About The Position

Coreshell's metallurgical Silicon anode technology delivers high capacity, fast-charging, and superior safety. Our low-cost Silicon-dominant batteries have higher energy density, superior intrinsic thermal safety, and significantly lower cost/kWh compared to current LIBs. Coreshell's Si anode material is lower than the cost of graphite and utilizes the largest abundant critical mineral supply in the US and Europe. We strive to transform the global energy and transportation market by enabling cost effective and secure domestic battery supply. We are seeking a Junior Process Engineer to join our battery process technology team. This role supports the development, optimization, and stabilization of electrode, cell assembly, and formation processes. The ideal candidate is highly motivated, detail‑oriented, and eager to grow into a process expert in next‑generation battery technologies.

Requirements

Bachelor’s degree in Chemistry, Chemical Engineering, Materials Science, Mechanical Engineering, Industrial Engineering, or related field
0–2 years of experience in battery cell manufacturing (process development, process technology or manufacturing environment preferred)
Strong analytical and problem‑solving skills
Ability to work in fast‑paced production environments
Basic understanding of statistical analysis
Good communication and teamwork skills

Nice To Haves

Electrode process: mixing, coating, calendering, slitting
Cell assembly: stacking/Z‑folding, welding, electrolyte filling, formation
Quality systems: SPC, MSA, FMEA
Data tools: Python, JMP, Minitab, Tableau
Internship or project experience in battery manufacturing
Experience with DOE, SPC, or Six Sigma tools
Familiarity with lithium‑ion cell structure and production flow
Hands‑on experience with lab measurement tools (viscometer, caliper, UTM, etc.)

Responsibilities

Monitor daily production KPIs (yield, scrap, downtime) and identify abnormalities.
Analyze process and quality data to support root cause investigations.
Assist in planning and running Design of Experiments to optimize process parameters.
Work with equipment engineers to troubleshoot process issues.
Create and update standard operating procedures and work instructions.
Support quality teams in defect analysis and corrective actions.
Prepare samples for lab testing (adhesion, resistance, thickness, etc.).
Collaborate with R&D, Quality, and Production teams to implement improvements.