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Process Engineer

Lilac Solutions

Lilac Solutions

Oakland, CA, USA
USD 90k-122k / year + Equity
Posted on Jul 4, 2025

About Lilac Solutions, Inc.

Lilac exists to solve one problem: lithium supply. By engineering scalable lithium extraction technology, we help industries produce lithium faster, cheaper, and cleaner. Our ion exchange technology is rooted in scientific precision and commercial know-how, making lithium supply a non-issue for global electrification. Our materials, engineering, and approach uniquely position us to design and develop commercial projects across various lithium sources. We help lithium producers rapidly and responsibly scale production from brine resources with versatile, cost-effective, and dynamic technology solutions.

Lilac is supported by the largest players from the mining and processing industry, as well as significant investment funds. Lilac investors include BMW, SK, Mitsubishi, Sumitomo, Bill Gates’ Breakthrough Energy Ventures, Mercuria, Lower Carbon Capital, and MIT’s The Engine.

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 across the US, South America, and Europe

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.
  • Excited to work on a small fast-paced startup team with a drive to succeed and grow with the company
  • Pass a respirator fit test periodically, move up to 50 lbs on occasion, 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)

Compensation & Benefits

  • Discretionary bonus
  • 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
  • Flexible paid time off policy
  • Paid sick leave
  • Eight weeks of paid parental leave
  • Employee assistance program
  • Monthly phone stipend
  • Daily catered lunch for on-site employees
  • Annual Salary 90k - 122k dependent upon geographic location and relevant experience

EEO Statement

Lilac Solutions is committed to providing a professional work environment free from discrimination and harassment, including discrimination and harassment based on a protected category, and an environment free from retaliation for participating in any protected activity. Lilac Solutions is committed to providing equal employment opportunities to all employees and applicants for employment.

A Note to Third-Party Recruiters


At this time, we are not accepting unsolicited resumes from non-partnered third-party recruiters or staffing agencies. Resumes sent without prior arrangement will be considered the property of Lilac Solutions, and no fees will be paid if we hire a candidate whose resume was submitted unsolicited.