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Mechanical Engineer - Liquid Metal Pumping Loop Design

Everett, Washington · Science/Research

Zap Energy is currently looking for an experienced, accomplished, self-motivated mechanical engineer to support the design and development of a primary liquid metal pumping loop. The liquid metal loop will serve as heat carrying media, fuel breeding blanket, radiation shielding, electric charge carrying media among other applications. This position requires experience with component design of fluid/gaseous pumping systems under vacuum services. Component design will include but is not limited to valves, pumps, pipping, vessels, among others. The position will entail pumping system and component design, including assembly of fluid loop systems to corroborate pumping power calculations, extract experimental data and refine component design.

This position will work with a multidisciplinary team of Zap Energy scientific, engineering, and technical staff on the design, assembly, and operations of advanced liquid metal loops for the next-generation Zap Energy SFS Z-pinch experiment. The mechanical engineer will also support pumping system assembly and testing. The ideal candidate is an organized, inventive problem solver, capable of working through technical challenges and employing sound, pragmatic solutions through team efforts. 

Applicants must be currently authorized to work in the United States for any employer.

Responsibilities and Duties:

  • Liquid metal loop component design.
  • Pumps, valves and plumbing design for liquid metal recirculating systems.
  • Support the design, build, testing, troubleshooting, and operation of one or more test stands involving liquid metals and high duty cycle cathodes under vacuum
  • Provide general support for z-pinch experiments as needed

Qualifications and Skills:


  • Demonstrated ability to work in multidisciplinary environments
  • Experience in design, procurement, assembly, operations, and analysis of fluid recirculation systems.
  • Ability to formulate and execute experimental run campaigns
  • Detailed knowledge of mechanical component design for pumping systems.
  • FEA and CAD of mechanical components.
  • Data acquisition systems
  • Data analysis including reduction, interpretation, and error analysis
  • Excellent written and communication skills


  • 5-10+ years post-M.Sc./M.Eng. experience in liquid/gaseous mechanical systems.
  • Liquid metal pumping systems.
  • Magnetic pump and liquid metal valves design experience

Benefits of joining Zap Energy - While doing meaningful work is rewarding in itself, we also offer the following programs and benefits for all employees:

  • Competitive salary and benefits
  • Premium medical / dental / vision insurance
  • Flexible vacation and paid company holidays

Zap Energy Inc. is developing and commercializing fusion energy technology using the sheared-flow stabilized (SFS) Z-pinch. Fusion energy provides a nearly-limitless and carbon-free source of clean energy. The highly-motivated scientific and technical team is conducting fast-paced, exciting, break-through work to push the SFS Z-pinch technology toward scientific breakeven conditions: successful achievement of this goal will revolutionize energy production. Zap Energy’s approach represents the most elegant fusion configuration, as it does not require magnetic field coils nor auxiliary heating. Zap Energy is a well-funded spinout company from the University of Washington, located in Everett, WA.

Zap Energy Inc. is an equal opportunity employer.  All qualified applicants will receive consideration for employment without regard to age, ancestry, color, family or medical care leave, gender identity or expression, genetic information, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran status, race, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable laws and regulations.  

Please contact careers@zapenergyinc.com

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