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Rivian

Makes electric pickups, SUVs and delivery vans

Staff Battery Cell Test Engineer

Electrical EngineeringUpdated on Nov 12
Full-timeTustin, CA, USAIn-person

About the Job

Requirements

  • A 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.
  • Understanding of cell performance metrics and how to evaluate them through testing and other analysis.
  • Understanding of electrochemical processes across various lithium-ion chemistries.
  • Experience with Python, SQL databases, and prompt/context engineering.
  • Attention to detail and critical thinking.
  • Problem-solving skills, knowledge of relevant theories, and proactivity.
  • Interest in research or work in lithium-ion batteries, especially for electric vehicle applications.
  • Communication and presentation skills.
  • Autonomous time management.

Responsibilities

  • Lead end-to-end cell test campaigns, including standard operating procedure preparation, test and channel planning, execution, and delivery of comprehensive validation reports and cell model calibration and validation data packages.
  • Standardize hardware test fixtures and metrology equipment through Gauge R&R evaluations and calibration protocols to achieve measurement precision and repeatability across setups.
  • Contribute to deploying and maintaining robust 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 a characterization engineer to standardize and document cell-level characterization protocols for thermal safety, electrochemical performance, and durability testing, supporting consistent execution and reliable data collection across the team.
  • Contribute to selecting, sourcing, installing, commissioning, and validating new hardware and software test-system solutions.

Desired Qualifications

  • 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.
  • Familiarity with harness engineering.

About the Company

Rivian

Makes electric pickups, SUVs and delivery vans

Rivian designs and builds electric pickup trucks, SUVs, and delivery vans, pairing off-road ability with electronics and software it develops itself. In 2021, its R1T became the first fully electric pickup truck on the US consumer market, ahead of larger rivals such as Ford and Tesla. It makes the R1T pickup, the R1S and R2 SUVs, and commercial vans in Normal, Illinois, and sells them directly online and in its own stores rather than through dealers. Its vehicles run on Rivian's own software, which gains features through updates sent over the internet, and most revenue comes from vehicle sales, with service and optional software adding more. Rivian was founded in 2009 and is based in Irvine, California.

Company size
10,001+
Company stage
IPO
Headquarters
Irvine, CA
Founded
2009

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