Staff Mechanical Design Engineer, EPC 

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San Francisco, California, US Until 8/22/2026 7+ years exp H-1B sponsor history First posted May 10, 2026 Last posted May 10, 2026
Job description

About Redwood Materials

Redwood is localizing a global battery supply chain that seamlessly integrates recovery, reuse, and recycling — keeping critical minerals in circulation and driving the energy transition. Founded in 2017, we’re delivering low-cost and large-scale energy storage and producing battery materials in the U.S. for the first time, all from batteries we already have.

Staff Mechanical Design Engineer, EPC 

Redwood Materials is hiring for a Staff Mechanical Design Engineer to join our Engineering, Procurement, and Construction team. This role is at the center of our activities focused on creating a sustainable circular economy for lithium-ion batteries by transforming recycled materials into battery materials for new lithium-ion battery production. 

Responsibilities will include: 

  • Serve as Mechanical Engineer of Record on projects (Hazardous occupancy, clean and dry spaces, chemical process / industrial plants), responsible for mechanical / plumbing deliverables (specifications, calculations, permit / construction documents). 
  • Design ownership for a wide range of mechanical and plumbing systems including, but not limited to: industrial/non-potable water, HVAC systems (labs, offices, industrial plants), process heating / cooling systems humidifiers, dehumidifiers, abatement systems (dust collectors, scrubbers), cooling towers, fans/pumps, plumbing, etc. 
  • Review conceptual designs from developing Engineers and identify technical and financial risks. 
  • Responsible for designing/reviewing mechanical engineering deliverables with respect to code compliance and ensuring design maintains the highest level of quality. 
  • Develop and improve project workflows and standards to ensure each design is consistently excellent. 
  • Participate in on-field construction and commissioning activities by serving as the point of contact for technical questions and real-time issue resolution. 
  • Multi-discipline collaboration on the development of equipment general arrangements, P&IDs, isometrics, tie-in lists and material takeoffs. 
  • Travel to project site and meetings as needed. 

Desired Qualifications: 

  • Bachelor’s Degree in Mechanical Engineering or an equivalent discipline. 
  • Licensed Professional Engineer with NCEES record with ability to apply for NV and SC 
  • 7+ years of work experience in HVAC and Plumbing/FP design. 
  • Expert familiarity with ICC including International Energy Conservation, Mechanical, Plumbing and Fire Protection Codes, NFPA standards, SMACNA duct construction standards, ACGIH Ventilation Practices and ASHRAE 
  • Working knowledge of designing the following equipment types: condenser fluid heat rejection systems, chillers, boilers, air handling units, air and water source heat pumps, dust collectors, humidifiers, dehumidifiers, fans, and pumps. 
  • Working knowledge or experience with the following is preferred: Abatement systems (thermal oxidizers, dry and wet scrubbers), Heat Exchangers (shell/tube, plate/frame, brazed fin), Control Valves and Instrumentation, and Heat Recovery Systems. 
  • Working knowledge of writing sequences of operation for HVAC and chilled water systems. 
  • Ability to specify ductwork material and size for various ducted exhaust systems and pressure classes. 
  • Ability to specify pipe material and size for various thermal hydronic systems. 
  • Ability to create or edit construction specifications covering mechanical, process piping and plumbing systems. 
  • Proficient in the use of Revit and AutoCAD. Experience sourcing and specifying mechanical equipment and executing RFP process. 
  • Strong experience with engineering software packages: Pipe-Flo (or other hydraulic modeling application), Caesar II, AspenTech applications and/or Applied Flow Technology applications, Carrier HAP, Trane Trace, Navisworks, Bluebeam. 

 

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:
$187,500$247,500 USD

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

 

We collect personal information (PI) from you in connection with your application for employment with Redwood Materials, including the following categories of PI: identifiers, personal records, professional or employment information, and inferences drawn from your PI. We collect your PI for our purposes, including performing services and operations related to your potential employment. If you have additional privacy-related questions, please contact us at [email protected].

Compensation (from employer):
California Pay Range: — 187,500 – 247,500 USD — (<p><span data-teams="true"><span class="ui-provider a b c d e f g h i j k l m n o p q r s t u v w x y z ab ac ae af ag ah ai aj ak">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.&nbsp;</span></span></p>)

About this role

Summary

Design, review, and manage mechanical/plumbing systems for battery facility projects.

Job title

Staff Mechanical Design Engineer, EPC

Experience level

7+ years

Minimum experience

7+ years exp

Industry

battery and energy storage

Location requirements

San Francisco, remote work not specified

Salary

California Pay Range: — 187,500 – 247,500 USD —

Visa sponsorship

H-1B sponsor history

Management role

No

Skills & keywords

Required skills

mechanical engineeringprofessional engineerHVACplumbingAutoCADRevitPipe-FloCaesar IIASHRAE

Preferred skills

abatement systemsheat exchangerscontrol valvesinstrumentationthermal systems

Specializations

mechanical designHVACplumbingindustrial systemsrecycling
Locations

Structured locations inferred from the posting.

San Francisco, CA, USA

Work arrangement unknown City