Senior Mechanical Engineer (Mechanisms)

Relativity Space

Long Beach, CA, United States Posted September 13, 2026

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On-site Full-time Senior
Salary Range

$132,000 - $198,000

Job Description

Join our team as a Senior Mechanical Engineer (Mechanisms) and play a critical role in the 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, integrating multiple subsystems within our printed primary structure. You will work collaboratively with partner groups and leverage our additive process to design and build better products.

  • Design and test mechanisms for stage separation, payload deployment, and landing gear.
  • Conduct trade studies on different mechanism design concepts and present findings to leadership.
  • Collaborate with partner groups to integrate subsystems within the printed primary structure.
  • 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
  • Basic knowledge of manufacturing processes, materials, and surface treatments
  • Bachelor's degree in engineering or related technical discipline
  • 5+ years of experience in a full cycle design engineering role, including CAD, analysis, build and test
  • Communication and interpersonal skills to lead discussions on complex technical topics
  • Fundamental knowledge of kinematic synthesis, pneumatic/hydraulic actuation, mechatronics and instrumentation
  • Fundamental knowledge of structures strength, stability and fatigue failure modes
  • Proven track record of technical problem-solving and hands-on hardware build experience
  • Experience in a demanding fast pace development environment
  • 7+ years of aerospace experience or an advanced engineering degree
  • Experience with design engineering tools such as NX, TeamCenter, Ansys or Femap, as well as engineering scripting language such as Python or MATLAB
  • Experience with launch vehicle mechanisms and multi-body dynamics analysis
  • Hands-on experience with fabrication/prototyping such as machining, 3D printing, welding, woodworking
Required Skills
mechanical engineering collaboration leadership manufacturing communication problem solving Python MATLAB prototyping welding
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