Senior Propulsion Engineer, Engine Assembly Design Verified today

Relativity Space · Long Beach, CA · Propulsion · first seen 2026-07-16

About the Role

As an Engine Assembly Responsible Engineer on the Propulsion Integrated Design team, you will:

  • Own the overall layout and packaging of Aeon-R engines in all different configurations (development, qualification, acceptance, first stage versus upper stage)
  • Design and analyze final integration hardware, such as secondary structures, fluid manifolds, tubing, and custom fittings
  • Work closely with component and sub-system owners across the Propulsion department to drive towards an optimal engine design
  • Lead clean sheet conceptual design and layouts of new and upgraded engine configurations
  • Own and release top-level CAD models of the engine assembly
  • Track and report mass and mass projections of the Aeon-R engines
  • Own the Interface Control Diagram for Aeon-R engines, requiring close collaboration with vehicle and test stand partners
  • Champion configuration and change management for the Aeon-R engines
  • Partner closely with Engine Integration engineers to successfully build and ship engines at increasing rate

About You

You have a Bachelor's degree in a science, engineering, technology, or mathematics field and 5 or more years of experience with fluid systems design and/or structural design.

You have experience applying fluid, thermal, structural, and mechanical design fundamentals, and are proficient with Computer Aided Design (CAD) software. You are detail-oriented, organized, and able to follow through on ambitious schedules, using unconventional and creative solutions when necessary.

Nice to Have

  • Working knowledge of engine subsystems such as combustion devices, turbomachinery, valves, and integration hardware
  • Experience in the design of liquid propulsion components and systems
  • Experience with large CAD model management, change management, and configuration management
  • Experience with Siemens NX, Teamcenter, and ANSYS workbench
  • Familiarity with aerospace standards (AS, NAS, SAE)

Compensation

Hiring range: $132,000 to $198,000 USD. Relativity Space offers competitive salary and equity, generous PTO and sick leave, parental leave, and an annual learning and development stipend.