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Mechanical Engineer II

Relativity Space

Relativity Space

Software Engineering
Long Beach, CA, USA
USD 112k-143k / year + Equity
Posted on Jul 29, 2025

At Relativity Space, we’re building rockets to serve today’s needs and tomorrow’s breakthroughs. Our Terran R vehicle will deliver customer payloads to orbit, meeting the growing demand for launch capacity. But that’s just the start. Achieving commercial success with Terran R will unlock new opportunities to advance science, exploration, and innovation, pioneering progress that reaches beyond the known.

Joining Relativity means becoming part of something where autonomy, ownership, and impact exist at every level. Here, you're not just executing tasks; you're solving problems that haven’t been solved before, helping develop a rocket, a factory, and a business from the ground up. Whether you’re in propulsion, manufacturing, software, avionics, or a corporate function, you’ll collaborate across teams, shape decisions, and see your work come to life in record time. Relativity is a place where creativity and technical rigor go hand in hand, and your voice will help define the stories we’re writing together. Now is a unique moment in time where it’s early enough to leave your mark on the product, the process, and the culture, but far enough along that Terran R is tangible and picking up momentum. The most meaningful work of your career is waiting. Join us.

About the Team:

The Additive Technology team operates at the frontier of research and development, where creativity meets capability. This is an R&D-driven environment where problems are open-ended and solutions are yours to define. You’ll work alongside welders, robotics engineers, data scientists, and systems engineers at the intersection of hardware and software, creating an end-to-end additive manufacturing platform that serves a wide variety of applications. From exploring new materials to unlocking faster print speeds, to designing complex, organic geometries that can’t be built any other way, it’s high-impact work that sets the foundation for the future of additive manufacturing.

About the Role:

  • Collaborate closely with technology and operations teams to define requirements for industrial automation systems and translate them into functional designs
  • Responsible engineer for the design and development of mechanical systems from conception to production. Create models, drawings and specifications
  • Work with cross functional stakeholders to derive requirements, set goals and ensure effective communication
  • Ensure designs meet requirements for tolerances, functionality and safety
  • Utilize rapid prototyping to iterate and refine designs quickly

About You:

  • Bachelor’s degree or higher in Mechanical Engineering or a related field
  • 2+ years of experience designing industrial automation equipment, mechanical structures, or mechanisms
  • Proficiency in CAD, including GD&T application, tolerance analysis and drawing documentation
  • Strong communication and collaboration skills
  • Able to take initiative in a fast-paced environment

Nice to haves but not required:

  • Proficiency in NX CAD software and experience with PLM systems
  • Experience with robotics and electrical system design
  • Familiarity with rapid prototyping methods and technologies
  • Hands-on experience performing structural FEA analysis using ANSYS, ABAQUS, or similar tools

At Relativity Space, we are committed to transparency and fairness in our compensation practices. Actual compensation will be determined based on experience, qualifications, and other job-related factors.

Compensation is only one part of our total rewards package. Relativity Space offers competitive salary and equity, a generous PTO and sick leave policy, parental leave, an annual learning and development stipend, and more! To see some of the benefits & perks we offer, please visit here.

Hiring Range:
$112,000$143,000 USD

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.