Staff Battery Cell Test Engineer

Rivian • Tustin, CA

11h

About The Position

Rivian is hiring a Staff Battery Cell Test Engineer to lead battery-cell test campaigns from test planning and preparation through execution and delivery of validation reports and cell-model calibration and validation data. The role supports consistent, precise measurement practices, reliable cell-data systems, and automation of test workflows and reporting.

The engineer will collaborate on standardized cell-characterization methods covering thermal safety, electrochemical performance, and durability. They will also help expand testing capabilities by evaluating, sourcing, installing, commissioning, and validating test hardware and software solutions.

Requirements

• Master’s degree in an engineering discipline and experience testing lithium-ion battery cells or packs.
• At least 4 years of industry experience in battery cell testing, writing and validating test scripts, and analyzing and presenting test results.
• Experience applying Measurement System Analysis, Gauge R&R, and sensitivity analysis to lithium-ion cell test results.
• Good understanding of cell performance metrics and how to evaluate them through testing and other analysis.
• Good understanding of electrochemical processes in various lithium-ion chemistries.
• Experience with Python, SQL databases, and prompt/context engineering.
• Excellent attention to detail and critical-thinking skills.
• Problem-solving skills, knowledge of problem-solving theories, outside-the-box thinking, and proactivity.
• Passion for research or work in lithium-ion batteries, especially for EV applications.
• Excellent communication and presentation skills.
• Autonomous time management.

Nice To Haves

• Familiarity with cell teardown, CT scans, and other lithium-ion battery analysis methodologies and tools.
• Familiarity with database architecture.
• Familiarity with cell safety, abuse, reliability, and environmental testing.
• Harness engineering knowledge.

Responsibilities

• Lead end-to-end cell test campaigns, including SOP preparation, test and channel planning, execution, validation reporting, and delivery of cell-model calibration and validation data.
• Standardize test fixtures and metrology equipment using Gauge R&R evaluations and calibration protocols to improve measurement precision and repeatability.
• Contribute to deployment and maintenance of cell-data systems that handle internal and external data sources.
• Suggest and implement software solutions to automate test preparation, execution, data processing, and validation-report generation.
• Collaborate with characterization engineers to standardize and document cell-level characterization protocols for thermal safety, electrochemical performance, and durability testing.
• Contribute to selecting, sourcing, installing, commissioning, and validating new test-system hardware and software.

Benefits

• Paid vacation and paid sick leave.
• Medical, dental, vision, life, short-term disability, and long-term disability insurance for eligible employees.
• 401(k) Plan, subject to eligibility requirements.
• Employee Stock Purchase Program, subject to eligibility requirements.
• Potential eligibility for an annual performance bonus and equity awards.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior