Data Engineer - Battery Technology

This is the first Data Engineer role at Stealth-mode Battery Technology Co., supporting a seed-stage sodium-ion battery organization in building the data ecosystem that connects raw materials to cell performance. The position is onsite in Santa Clara, CA.

Role Summary

You will architect and implement the company’s data infrastructure, including a system that tracks battery materials through synthesis, mixing, coating, cell assembly, and testing. The role also includes creating data pipelines, analysis workflows, and visualization tools to support cell test data, with a specific focus on battery cell cycle aging and reference performance tests.

Key Responsibilities

• Design and implement the data ecosystem to support both production operations and technology development.
• Operate, maintain, troubleshoot, and continuously improve the raw-materials-to-cell tracking system.
• Build new data analysis and visualization tools for battery cell cycle aging and reference performance tests.
• Integrate existing and new analysis tools into automated data pipelines.
• Implement and maintain version control for in-house data analysis tools.

Required Qualifications

• Masters degree in Data Science or Engineering (Materials, Chemical, Electrical, etc.).
• 6 to 8 years of direct experience building and/or improving database systems for production tracking.
• Fluency in Python.
• Direct experience with SQL databases and writing SQL queries.
• Direct experience building web applications.
• Familiarity with version control software such as Git.
• Strong independent working capability.
• Comfort operating in an early-stage environment, where the focus includes building infrastructure rather than only running experiments.

Technologies

• Python
• SQL
• Git

Compensation

USD 140,000 - 185,000 per year.

Work Location and Schedule

Onsite in Santa Clara, CA with an onsite work schedule currently in place.

Benefits

• Competitive salary plus meaningful early-stage equity.
• Flexible time off for exempt employees.
• Medical Healthcare Insurance, with additional coverage options for family members.
• Dental and Vision Insurance, with additional coverage options for family members.
• HSA (Health Savings Account) option.
• FSA (Flexible Spending Account) option.

Why Join

• Ground-floor opportunity to shape both the science and the culture of a well-funded seed-stage company.
• Direct access to founders, with minimal bureaucratic barriers to pursuing bold ideas.
• Work on a problem with long-term significance, as sodium-ion is one of the most consequential battery chemistries of the next decade.