Mechanical Designer

An immediate opportunity exists for a highly skilled candidate experienced in precision component design for electrochemical cell stacks.

About the Position

The individual should have strong component design experience including analysis of mechanical stress and deformation, fluid flow, load distribution, tolerancing, and design for manufacturability, including detailed documentation and in depth technical review.


  • Design of electrochemical cell stack components for mechanical robustness, uniform fluid distribution, and manufacturability.

  • Research to extend electrochemical cell stack functionality, identify novel approaches for cost reduction, and finding new applications for existing technology elements.

  • Documentation of test plans, technical reports, drawings, and assembly processes.

  • Collaboration with manufacturing representatives to design for mistake-proofing and volume production considerations.

  • Evaluation of component suppliers with manufacturing representative; development of inspection criteria based on critical dimensions and properties.

  • Support manufacturing group in disposition of non-conforming product and troubleshooting and technical service group in field returns.

Skills and Experience should include most of the following:

  • Design of seals, flow plates, and precision components.

  • Working knowledge of electrochemical devices.

  • Work experience in support of manufacturing operations.

  • Supplier interaction and evaluation.

  • Working familiarity with safe work practices and hazard analysis.

Minimum Qualifications:

  • One to five years of industry related experience (fuel cells, fluidics, gas separation, flow batteries).

  • Experience with 3D CAD (Pro/E strongly preferred)

  • Experience with FEA (Pro/Mechanica or ANSYS preferred)

  • Motivated self-starter with high level of initiative and creative approach to problem solving. 

  • Excellent verbal and written communication skills.

  • Strong organizational skills and ability to balance multiple tasks.

  • Capable of working well in a multi-disciplinary team environment with high degree of collaboration.

Education and/or Experience:

  • BSME or MSME or equivalent.


  • Proton will only employ those who are legally authorized to work in the United States. This is not a position for which sponsorship will be provided.

  • Individuals with temporary visas such as E, F-1, H-1, H-2, L, B, J, or TN or who need sponsorship for work authorization now or in the future, are not eligible for hire.

Please send resumes to Sandi Kelly: 

The above statements reflect the principal functions of the position, and shall not be construed as a detailed description of all work requirements that may be inherent in the job.

We are proud to be an Equal Opportunity Employer. Women, minorities, and individuals with disabilities, including “disabled Veterans” or Veterans with service-connected disabilities, are encouraged to apply.

Proton OnSite provides comprehensive health and insurance benefits for its employees. The Company also offers competitive paid vacation time, sick leave, and holidays.

Proton OnSite has a published Code of Conduct that all employees are expected to follow.

Due to the high volume of resumes we receive, we are not able to respond personally to every application. However, we do review every resume, and will be sure to contact you if we think there is a possible fit.