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Process Engineer, Lithium Extraction

Lilac Solutions · Oakland, CA · United States · On-site

Pay: USD 100,000 – 140,000 a year

Posted Sep 2, 2026

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About the role Lilac is seeking a Process Engineer to design and conduct experiments on Lilac’s proprietary ion exchange system to support the scale-up of its technology. You will be part of a team responsible for improving the performance of Lilac's mini pilot scale lithium extraction modules using engineering principles. It’s a collaborative position where you will work with cross-functional teams to conceptualize and drive innovation. An ideal candidate provides new ideas, and/or refines the existing technology through a process of researching, designing, experimenting, and testing. Day-to-day responsibilities will include operating process equipment, data collection, data analysis and summarizing results and conclusions in technical reports. This is a full-time position, with up to 25% travel to lithium extraction sites.  What you'll do Design, fabricate, commission, and operate lithium extraction modules and associated components, across bench and pilot scale.  Development of new designs to improve efficiency of the technology  Develop key design documents such as material balances, PFDs, P&IDs  Automation, process control, and continual improvement of the lithium extraction skids  Evaluation of equipment and processes to ensure compliance with safety and environmental regulations.  Up to 25% travel, to commission and operate lithium extraction plants both domestically and internationally  Qualifications Bachelor’s Degree (or higher) in chemical engineering, mechanical engineering, or related field.  Familiar with laboratory equipment and safety procedures.  Highly organized with sharp attention to detail, proficient in data analysis and interpretation.  Excellent communication skills and ability to interface and collaborate with other engineers, chemists, and operators.  Pass a respirator fit test periodically, occasionally stand for up to 8 hours per day, occasionally move up to 50 lbs, and wear PPE.   Preferred Qualifications 2+ years of hands-on laboratory experience.  Experience working with process equipment in an industrial setting, preferably with brine solutions or water treatment systems.  Experience working with programmable logic controllers (PLCs)  Benefits & Compensation Annual base salary of $100k - $140k Stock options   Health, dental, and vision insurance   Short-term and Long-term disability insurance   401k with pre- and post-tax investing options   Flexible spendings account/Health savings account   Group and term life insurance   Flexible paid time off policy   Paid sick leave   Eight weeks of paid parental leave   Commuter benefits  (some locations) Lunches provided Employee assistance program   Monthly phone stipend   The salary range listed reflects our good-faith estimate of the compensation for this role at the time of posting. Actual compensation will be determined by a number of factors, including but not limited to the candidate's…