Battery Test Engineer at ESS
Wilsonville, OR, US

ESS Tech Inc. (ESS) is a fast-growing, venture-backed, clean technology start-up, located in Portland, OR. ESS has developed an advanced flow battery technology for commercial, industrial, and utility applications.

ESS is looking for a motivated and hard-working Stack Test Engineer to join our team. This person is responsible for testing and validating performances of our battery stacks. Detailed job descriptions include:

  • Plan and conduct stack testing, and monitor battery performance on a daily basis.
  • Analyze, summarize and report battery testing data regularly.
  • Perform basic troubleshooting and battery performance diagnostics.
  • Clean and maintain test and laboratory equipment and instruments
  • Engage in research and development on battery modules with R&D scientists and engineers.

Desired Skills & Experience

  • BS or MS in Chemistry, Chemical Engineering, Material Science, or related disciplines, is required.
  • Knowledge of wet chemistry, electrochemistry and batteries is required.
  • Experience with battery or fuel cell testing is preferred.
  • Worked in a wet-chemistry lab and is comfortable working with chemicals including acid and base
  • Comfortable working with electronics such as battery testing instruments
  • Strong attention to details and can work from standard operating procedures
  • Good interpersonal and communication skills to work effectively with a small, dynamic team.
  • U.S. Citizenship or permanent residency.

Job Type: Full-time


  • 401(k)
  • 401(k) matching
  • Dental insurance
  • Health insurance
  • Health savings account
  • Paid time off
  • Referral program
  • Vision insurance


  • Day shift

COVID-19 considerations:
ESS has COVID policy actively in place


  • Bachelor's (Required)


  • Wilsonville, OR 97070 (Required)


  • English (Required)

Work authorization:

  • United States (Required)

Application Question:

  • Based on the posted job description please state your expected salary for this role.

Work Location:

  • One location

Benefits offered:

  • Paid time off
  • Parental leave
  • Health insurance
  • Dental insurance
  • Healthcare spending or reimbursement accounts such as HSAs or FSAs
  • Other types of insurance
  • Retirement benefits or accounts

Work Remotely:

  • No
30+ days ago
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