Process Engineer

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Sion Power provides equal opportunities to all employees and applicants for employment without regard to race, color, religion, sex, national origin, age, disability or genetics. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, leave of absence, transfer, compensation and training.

In accordance with the Age Discrimination in Employment Act of 1967 and the Age Discrimination Act of 1975 and its implementing regulation, Sion Power will not, directly or through contractual or other arrangements, discriminate on the basis of age, unless age is a factor necessary to the normal operation or the achievement of any statutory objective.

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Sion Power, located in Tucson, AZ, is the leading developer of high-energy rechargeable, lithium metal battery technology with more than 20 years in research and development. Years of research and development has yielded the Licerion® lithium metal technology which is poised to dramatically change the lithium battery landscape, delivering the highest combination of energy density and specific energy available.

The Process Engineer will be responsible for establishing and maintaining a production process for large area cell assembly for Sion Power’s proprietary lithium metal batteries. This position involves establishing a pilot line process for flat plate and wound cell assembly using semi-automated and fully automated assembly tools. This will include winders/stackers as well as cell packaging and electrolyte fill steps. The candidate must have a solid experience base in process development, manufacturing, supply chain control and quality procedures as well as troubleshooting and maintaining the process equipment.


  • Develop and maintain process capabilities for Sion Powers large area cell assembly, including automated cell assembly, formation and finish in close collaboration with the production and equipment engineering teams.
  • Work closely with other team members to increase understanding of failure modes, performance and life expectancy of cell products.
  • Work with product design team to develop solutions to problems, improve product quality and consistency.
  • The candidate will be responsible to establish and maintain a cell assembly line to achieve production goals for both quantity and quality of product. This includes analyzing process capabilities, characterize and reduce manufacturing tolerances, track and improve process yields and monitor supply chain quality.
  • Responsible for recipe and SOP creation and proper operation of equipment.
  • Training of technicians for the operation and maintenance of the equipment
  • Effective failure analysis and problem solving
  • Reporting of SPC metrics, yields, corrective actions, and improvement plans


  • 3 years battery experience in manufacturing environment
  • B.S. in Mechanical Engineering, Materials Science, Chemical Engineering or related field. Commensurate relevant work experience will be considered.
  • Successful candidates will have meticulous attention to detail, possess outstanding problem-solving skills, and have direct, hands on machine experience.
Location: Tucson, AZ
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