Data Engineer - Battery Technology

Stealth-mode Battery Technology Co.; Santa Clara (CA); On-site; USD 140,000 - 190,000; Full time

Benefits offered by this job

Equity

Flexible time off

Medical, dental, vision

HSA option

FSA option

Job summary

Stealth-mode Battery Technology Co. is seeking its first Data Engineer to architect and implement a scalable data ecosystem across R&D and production, partnering with the battery cell team to track materials and test data.

You will build pipelines, visualization tools, and data reports, leverage Python/SQL, and push for robust version control. This senior role thrives in a fast-paced, early-stage setting with equity and comprehensive benefits.

Qualifications

• Masters degree in Data Science or Engineering (Materials, Chemical, Electrical, etc.).
• 6–8 years of direct work experience with building and/or improving database systems for production tracking.
• Fluent in Python
• Direct experience with SQL databases and SQL query writing.
• Direct experience with building web applications.
• Familiar with version control software such as Git.
• Strong independent worker.

Responsibilities

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

Skills

Python

SQL

Web applications

Git

Independent worker

Education

Masters degree in Data Science or Engineering

Tools

Databases

Data visualization

Job description

About Us:

We are building a world-class foundational science team, founded by former Tesla leadership. We’re a well-funded seed-stage sodium-ion battery company focused on truly redefining the future of energy storage and we are very excited about it.

About this role:

As our first Data Engineer on our data team, this role is better suited for someone senior level. In this role, you will get to architect and implement our data ecosystem and our strategy and system planning. You will work closely with our battery cell R&D team and maintain and improve the company’s database that tracks battery materials and components through active materials synthesis, mixing and coating, cell assembly and cell testing. You will build new data analysis and visualization tools and build data pipelines that automatically generate visualizations and reports of cell test data from cycle aging and reference performance tests.

What you’ll get to do:

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

What you’ll bring:

• Masters degree in Data Science or Engineering (Materials, Chemical, Electrical, etc.).

• 6–8 years of direct work experience with building and/or improving database systems for production tracking.

• Fluent in Python

• Direct experience with SQL databases and SQL query writing.

• Direct experience with building web applications.

• Familiar with version control software such as Git.

• Strong independent worker.

Comfortoperatingin early-stage environments — you build infrastructure, not just run experiments.

Work Environment

• Innovative / flexible / yet fast-paced development environment

• Very close collaboration with technical team and stakeholders across the company

• Small, growing, international team from 7+ countries

• Office snacks include healthy options, chips, drinks

• Onsite work schedule currently

Why join:

• Ground-floor opportunity to shape both the science and the culture of a well-funded seed-stage company

• Direct access to founders; no bureaucratic barriers to pursuing bold ideas

• Work on a problem that matters - sodium-ion is one of the most consequential battery chemistries of the next decade

Benefits:

As a full-time regular employee, you're eligible for the following.

• Competitive salary + meaningful early-stage equity

• Flexible time off (for exempt employees)
• Medical Healthcare Insurance, plus additional coverage offered for family members
• Dental and Vision Insurance, plus additional coverage offered for family members
• HSA (Health Savings Account) option
• FSA (Flexible Spending Account) option