Breakthrough Energy Ventures Portfolio Company Career Opportunities

Mechanical Engineer

Lilac Solutions

Lilac Solutions

Salt Lake City, UT, USA
Posted on Thursday, November 2, 2023

About Lilac Solutions, Inc.

Lilac Solutions is a lithium extraction technology company focused on scaling lithium production for the electric vehicle era. Lilac solves the critical technology problems which today prevent development of the world’s largest lithium resources: low yields, high costs, slow start-up, poor reliability, and massive environmental impacts. Lilac’s technology represents such a step-change in performance and cost that it also unlocks the development of new unconventional lithium deposits with low lithium grades and high impurities, which have historically been impossible to produce. In 2021, Lilac raised $150M in Series B financing from investors including T. Rowe Price, Lowercarbon Capital, Breakthrough Energy Ventures, Sumitomo, BMW and SK Materials. Lilac is committed to building a diverse and inclusive workplace.

Job Description

Lilac is seeking a Mechanical Engineer to design and build lithium process equipment at pilot and commercial scales. This person will work closely with chemical engineers to optimize equipment and plant design. Responsibilities will include mechanical engineering and design of the equipment and system, including plant layout design. Some travel may be required. Initially, the projects are located in South America and the US. This is a full-time position based in Salt Lake City, UT.


  • Participate in man-hour estimation and engineering schedules for new projects
  • Direct and manage other mechanical engineers, designers, and consultants where required
  • Report progress on a weekly basis to the Project Engineer on all mechanical engineering activities/deliverables.
  • Develop project and equipment specifications, piping specifications, scope of work and deliverables
  • Sizing of mechanical equipment, including pump sizing
  • Mechanical engineering calculations
  • Develop equipment lists and datasheets
  • Develop plant layout arrangement drawings
  • Review design drawings (squad checks)
  • Participate in design review meetings and HAZOP studies
  • Develop procurement packages (enquiry, adjudication, purchase Recommendations)
  • Interface with third parties in a technical capacity
  • Participate actively in team environment and contribute to successful completion of team goals

Candidate Qualifications

  • Degree in mechanical engineering or similar
  • Highly organized with sharp attention to numerical and scientific detail
  • Excited to work on a small fast-paced startup team
  • Experience with AutoCAD
  • US work permit

Preferred Skills

  • Experience designing and fabricating mineral processing or chemical handling systems
  • Experience with pilot design and commissioning


  • Competitive salary
  • Stock options
  • Health, dental, and vision insurance
  • 401k program
  • Long Term Disability Insurance
  • Flexible time off policy
  • Eight weeks of Paid Parental Leave
  • Daily catered lunch
  • Monthly Phone Stipend

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.