Senior Mechanical & Fluid Test Engineer

Panthalassa in Portland, Oregon seeks a Senior Test Engineer for Mechanical and Fluid Systems to design, build, and operate large-scale test equipment for hydraulic turbines, powertrains, and high-power systems. You will own test systems end to end—from concept through fabrication and deployment at sea—collaborating with shop teams and vendors.

This role emphasizes hands-on fabrication, machining, and additive manufacturing with a strong emphasis on safety and cross-functional collaboration.