Senior HR Business Partner

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. They just need to come back. 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 company is profitable, the market it operates in is projected to grow 20 to 50 times over the next decade, and Redwood is the only company with the supply chain, the technology, and the operational scale to lead it.

Position Summary:

The Senior Human Resources Business Partner (Senior HRBP) is a fully qualified, experienced HR professional who serves as a trusted advisor to leaders and managers. This role applies complete knowledge of HR principles, practices, and employment standards to address a wide range of people and organizational issues. Operating with independence, the Senior HRBP assesses complex and sometimes unusual situations, evaluates identifiable factors, and adapts established HR approaches to deliver practical, sound solutions aligned with business objectives.

This is a fully on-site role based at 100 Hooper in San Francisco. Work is performed independently, with review at key decision points, and requires strong judgment, influencing skills, and the ability to advise leaders on difficult or sensitive matters.

Responsibilities

Partner with managers and leaders to support day-to-day people strategy aligned with organizational priorities and operational goals

Apply in-depth knowledge of HR principles, employment practices, and policies to resolve a broad range of employee relations, performance, and workforce issues

Independently devise and implement HR solutions, adapting existing practices to meet evolving business and employee needs, with review at key decision points

Coach and guide leaders on performance management, employee engagement, development, and workplace concerns

Collaborate with internal partners (e.g., Legal, Talent, Total Rewards, HR Ops) to build effective working relationships and deliver integrated solutions

Advise leaders and peers on difficult or sensitive matters, exercising sound judgment and professional discretion

Ensure HR actions, recommendations, and decisions are consistent with company policies, values, and employment obligation

Skills, Knowledge, and Abilities

Bachelor's degree in Human Resources or a related field, or equivalent experience in lieu of a degree, with 5+ years of relevant experience

Complete knowledge and understanding of Human Resources principles, employment practices, and organizational policies, including strong working knowledge of San Francisco and California employment law

Strong analytical and problem-solving skills, with the ability to assess complex situations, synthesize information, and determine appropriate courses of action using sound judgment

Demonstrated ability to adapt established approaches when precedent or guidance is limited, working independently and managing priorities with minimal oversight while seeking review at critical points

In accordance with California pay transparency laws, the salary range for this position is listed below. Actual compensation may vary based on a variety of factors, including experience, education, and skills.

California Pay Range: $115,000 — $152,500 USD

The position is full-time. Compensation will be commensurate with experience.

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