Data Engineer

StealthBatteryCorp.; Santa Clara (CA); On-site; USD 145,000 - 185,000; Full time

Benefits offered by this job

Equity

Medical insurance

Dental and vision insurance

HSA option

FSA option

Flexible time off

Onsite work

Job summary

StealthBatteryCorp, based in Santa Clara, CA, is seeking a Senior Data Engineer to architect and deliver data systems that align production and development with real cell performance. The role is onsite in Santa Clara with a competitive salary and equity.

You will build a raw-materials-to-cell tracking data ecosystem, create analytics and visualization tools, and automate data pipelines for cell test data outputs. Collaboration with cross-functional teams is essential.

Qualifications

• Master’s degree in Data Science or Engineering (Materials, Chemical, Electrical, or related areas).
• 6–8 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 Git or similar version control software.
• Strong ability to work independently.

Responsibilities

• Design and implement a data ecosystem that supports production tracking and technology development.
• Run, maintain, troubleshoot, and continuously improve a raw-materials-to-cell tracking system.
• Develop new data analysis and visualization tools focused on battery cell cycle aging and reference performance tests.
• Connect new and existing analysis tooling into automated data pipelines that generate visualizations and reports from cell test data.
• Set up and maintain version control for in-house data analysis tools.

Skills

Python

SQL

Git

Web applications

Data analysis

Independent work

Education

Master’s degree in Data Science or Engineering

Tools

Version control

SQL databases

Web apps

Job description

StealthBatteryCorp is building a data ecosystem to support end-to-end battery materials and component tracking, from synthesis through mixing, coating, cell assembly, and testing. As a senior first Data Engineer, you’ll architect and deliver the systems that keep production and technology development aligned with real cell performance, while enabling automated analysis outputs for cell testing.

This onsite role is based in Santa Clara, CA, and it offers a salary range of USD 145,000 - 185,000 per year. The position requires 6+ years of relevant experience and a Master’s degree in Data Science or Engineering.

What you’ll do

• Design and implement a data ecosystem that supports production tracking and technology development.
• Run, maintain, troubleshoot, and continuously improve a raw-materials-to-cell tracking system.
• Develop new data analysis and visualization tools focused on battery cell cycle aging and reference performance tests.
• Connect new and existing analysis tooling into automated data pipelines that generate visualizations and reports from cell test data.
• Set up and maintain version control for in-house data analysis tools.

What you bring

• Master’s degree in Data Science or Engineering (Materials, Chemical, Electrical, or related areas).
• 6–8 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 Git or similar version control software.
• Strong ability to work independently.

Technologies

• Python
• SQL
• Git

Benefits

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

Work environment

• Innovative, flexible, fast-paced development environment.
• Close collaboration with the technical team and stakeholders across the company.
• Small, growing international team from 7+ countries.
• Onsite work schedule currently; office snacks include healthy options, chips, and drinks.

StealthBatteryCorp positions this as a ground-floor opportunity to influence both the science and the culture of a well-funded seed-stage company, with direct access to founders and minimal bureaucratic barriers. The work centers on sodium-ion batteries, described as one of the most consequential battery chemistries of the next decade.