Turbomachinery Engineer

About the role

Stoke is building Nova, a fully and rapidly reusable launch vehicle designed to connect Earth and space. As a Turbomachinery Engineer, you will play a critical role in designing, building, and testing advanced rocket engines.

Responsibilities

• Design, build, and test turbopumps for liquid rocket engines
• Own turbomachinery design (CAD), drawings, and manufacturing plans
• Perform hydrodynamic and aerodynamic sizing and flowpath design and analysis work for inducers, impellers, diffusers, nozzles, turbines, and other turbomachinery
• Evaluate axial thrust balance during transients and steady-state operating points
• Own tolerance stackups, build books, and ensure as-built pumps meet design intent
• Own test verification activities to ensure accomplished tests meet requirements
• Support turbopump testing, data review, inspections, and go/no-go's
• Own performance trending of various components (inducers, impellers, turbines, axial/ radial bearing capacities, cavitation, etc)
• Own design improvement plans for turbopump components including manufacturing improvements to reduce cost and lead time
• Use/develop high-speed data tools to review for turbopump vibration and rotor-dynamics performance
• Resolve hardware build non-conformances through resolution
• Conduct fault tree investigations and root cause analysis

Qualifications

• Demonstrated experience as an RE who takes extreme ownership of their product
• Demonstrated ability to manage numerous hardware workflows to meet required delivery dates
• Bachelor’s degree in mechanical or aerospace engineering, or similar
• 4+ years of experience in design, build, and testing of rocket engine turbopumps or related turbomachinery experience
• Understanding of hydrodynamic/aerodynamic design and fundamentals of turbomachinery
• Extensive experience using CAD tools and configuration management (Siemens NX and Teamcenter preferred)
• Experience with mechanical design including machined parts, additive parts, weldments, fasteners, seals, and rotating assemblies
• Experience in rocket engine turbomachinery axial/radial tolerance stackups, and material selection
• Experience in the design, build, and testing of inducers, impellers, volutes, turbines, nozzles, shafts, bearings, and seals
• Experience with secondary flow and axial thrust balance modeling
• Proficiency in heat transfer, compressible and incompressible flow, and cryogenics
• Excellent written and verbal communication
• Willing to relocate to Seattle, WA