Senior Mechanisms Engineer

Relativity Space

Long Beach, CA, United States Posted September 16, 2026

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On-site Full-time Senior
Salary Range

$132,000 - $198,000

Job Description

Join our team as a Senior Mechanisms Engineer, where you will be responsible for the full design, build, and test lifecycle of Terran R's integrated structures and flight mechanisms. You will have hands-on hardware ownership and see the rocket come to life on the factory floor. Your mission will be to deliver on time and budget, while integrating multiple subsystems within our printed primary structure. You will work closely with various teams and have the opportunity to make a significant impact on the future of rocket design and manufacturing.

  • Conception, design, analysis, and testing of mechanisms for rocket systems.
  • Collaboration with cross-functional teams to ensure integration of subsystems.
  • Management of projects to deliver on time and within budget.
  • In order to be successful in this role, you should be someone who is self-motivated, thrives in ambiguity, and is able to lead his or her own projects to completion
  • Ideally, you are someone who has come from a fast-paced environment, having completed difficult projects with extreme ownership while collaborating effectively with other key groups
  • Fundamental knowledge of kinematic synthesis, pneumatic/hydraulic actuation, mechatronics and instrumentation
  • Fundamental knowledge of structures strength, stability and fatigue failure modes
  • Basic knowledge of manufacturing processes, materials, and surface treatments
  • 5+ years of experience in a full cycle design engineering role, including CAD, analysis, build and test
  • Proven track record of technical problem-solving and hands-on hardware build experience
  • Bachelor's degree in engineering or related technical discipline
  • Communication and interpersonal skills to lead discussions on complex technical topics
  • Experience in a demanding fast pace development environment
  • 7+ years of aerospace experience or an advanced engineering degree
  • Experience with launch vehicle mechanisms and multi-body dynamics analysis
  • Experience with design engineering tools such as NX, TeamCenter, Ansys or Femap, as well as engineering scripting language such as Python or MATLAB
  • Hands-on experience with fabrication/prototyping such as machining, 3D printing, welding, woodworking
Required Skills
manufacturing testing collaboration cross-functional collaboration problem solving communication Python MATLAB prototyping welding
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