Redwood Materials

Redwood Materials

Sr. System Modeling Engineer, Energy Storage

San Francisco, California, United States · Senior · Full-time

Sponsorship not specified$20k-$50kDetected 7 days ago
PythonMATLABData AnalysisSupply ChainElectrical EngineeringCommunicationCollaborationAdaptability

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odds of building a lasting career here

39Risky
Cap-exempt (no lottery)0
Sponsors this role90
Entry-level history0
PERM / green-card track0
Lottery odds (Level I)39
Fits your clock70

Thin sponsorship signal and lottery-bound (~15% per draw). A low-probability bet with your clock running. Prioritize cap-exempt roles and proven entry-level sponsors first.

Lottery odds assume a STEM candidate.

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H-1B wage level

the lottery is wage-weighted — each level is one more entry

Level I · 1×
Level I$106,0381 entry
Level II$133,9732 entries
Level III$161,8863 entries
Level IV$189,8214 entries

The bottom of this range ($20,000) is below the Level I prevailing wage of $106,038. An H-1B cannot be filed below the prevailing wage, so an offer at the floor of this band could not be sponsored as posted.

DOL prevailing wage, 2026-27 wage year · Electrical Engineers (17-2071) · San Francisco-Oakland-Fremont, CA. Wage level is derived by USCIS from the offered wage, occupation and worksite; the occupation shown is inferred from the job title.

Employer immigration record

from this employer's Department of Labor filings

Green-card follow-through: 100%

Of 5 labor certifications old enough to have been used, 0 expired without the employer filing the next step. Median time from filing to decision: 513 days.100% of their filings were for a worker who already held the job.Only certifications past the 180-day window are counted — recent ones cannot have expired yet.

Files H-1B transfers

9 transfer filings in the last year, covering 9 workers. Median labor-condition decision: 7 days. An employer that already files transfers is one that can take over an existing H-1B.

Sourced from Department of Labor LCA, PERM and prevailing-wage disclosure data. Employer matching is by name, so figures may be split across an employer's legal entities. Absence of a filing means none appears in our copy of the data, not that none exists.

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About the role

  • Today Redwood is the largest lithium-ion battery recycler in North America - recovering, refining, and redeploying critical minerals from end-of-life batteries back into the supply chain.
  • On the energy side, Redwood has deployed the largest second-life battery project in the world, delivering power to AI data centers in months rather than years using proprietary energy architecture engineered entirely in-house.
  • The ideal candidate is highly self-driven, adaptable to a startup environment, and eager to take on novel technical challenges.

Responsibilities

  • Drive architectural studies to explore the cost and performance design space.
  • Utilize the models to produce repeatable and dependable results for various stakeholders within the organization to drive product architecture and site-specific deployment decisions.
  • Lead model validation efforts by writing test plans, working with test engineers to execute the test, and using the data to correlate the model.
  • Effectively communicate modeling results to drive architecture and performance initiatives.

Requirements

  • Or a BS and 2+ years of related work experience.
  • Experience collaborating in software projects with multiple contributors.
  • Familiarity with basic controls techniques, such as filters, PID controllers, and system identification.
  • Experience with optimization techniques.
  • Demonstrated ability to write clear and testable engineering requirements.
  • An MS or PhD in Mechanical Science, Electrical Engineering, or a related field. Or a BS and 2+ years of related work experience.
  • Excellent first-principles physics understanding of electrical and mechanical systems, power delivery, energy storage and transformation, and basic thermal mechanics.
  • Hybrid or electric powertrain model development, PV model development, or data analysis in Python or MATLAB/Simulink.
  • Strong communication and collaboration skills.

Compensation

  • $162,500 - $215,000 USD
  • Compensation will be commensurate with experience.

Company info

  • About Redwood Materials Redwood Materials was founded in 2017 by JB Straubel, co-founder and former CTO of Tesla, on a simple but radical idea: the critical minerals powering the energy transition already exist.
  • If you're excited about working in a dynamic, fast-paced setting within a new department at Redwood, we want to hear from you!

This listing is sourced directly from Redwood Materials's careers page and normalized into a canonical job model.