Senior Battery Cell Test Engineer — EV Lab

Rivian; Tustin (CA); On-site; USD 108,000 - 135,000; Full time

Benefits offered by this job

Paid vacation

Paid sick leave

401(k) plan

Employee Stock Purchase Program

Insurance benefits

Job summary

Rivian in California is seeking a battery cell test engineer to execute lithium‑ion cell tests (electrical, mechanical, electrochemical) and define SOPs for prioritizing tests.

You will write scripts, set up automated test programs, partner with data engineers to process data, analyze results, and deliver clear reports to cell engineers and scientists. This role offers a fast-paced environment and strong benefits in support of EV battery development.

Qualifications

• MS degree in engineering
• 3+ years of industry experience in battery cell testing, writing/validating test scripts, analyzing and presenting test results.
• Good understanding of cell performances metrics and how to evaluate them with testing and other analysis.
• Good understanding of electrochemical processes in various lithium-ion chemistries.
• Experience in python and SQL database, capable to write scripts.
• Excellent attention to detail and critical thinking.
• Problem solving skills, outside of the box thinking and proactivity.
• Desire to work in fast-paced environment and willing to make an extra effort to get the job done.
• Passionate about research/work in lithium-ion batteries, especially for EV application.
• Excellent communication and presentation skills.

Responsibilities

• Execute lithium-ion battery cell tests including electrical, mechanical, and electrochemical testing.
• Define SOP, prioritize tests, track and communicate test status to different groups of cell engineers and scientists.
• Write test scripts and set up programs to run tests automatically with different cyclers and chambers.
• Collaborate with data engineers to process data, maintain cell testing databases and develop automated data post-processing and report generation scripts.
• Analyze and present test results to cell engineers and scientists and support cross functional teams with test reports if needed.
• Contribute to automating the entire testing process from test requests to delivery of test results report.
• Work closely with test engineers and technicians to plan and execute long/medium/short-term priorities.
• Develop and implement lab KPIs, using scripts, to analyze lab operation and improve productivity.
• Design test fixture to improve testing capability and accuracy and extract representative and meaningful data.
• Collaborate with equipment vendors to source and integrate external systems to Rivian cell testing lab.
• Maintain lab space and equipment, perform equipment calibration and troubleshooting as needed.

Skills

Battery testing

Test scripts

Data analysis

Presentation skills

Python

SQL

Attention to detail

Problem solving

Adaptability

EV batteries

Communication

Education

MS degree in engineering

Tools

Python

SQL

Job description

Rivian in California is seeking a battery cell test engineer to execute lithium‑ion cell tests (electrical, mechanical, electrochemical) and define SOPs for prioritizing tests.

You will write scripts, set up automated test programs, partner with data engineers to process data, analyze results, and deliver clear reports to cell engineers and scientists. This role offers a fast-paced environment and strong benefits in support of EV battery development.